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Best Portable Solar Chargers of 2023. Phones with solar panels

Best Portable Solar Chargers of 2023. Phones with solar panels

    US20130040707A1. Solar cell phone. Google Patents

    Publication number US20130040707A1 US20130040707A1 US13/475,779 US201213475779A US2013040707A1 US 20130040707 A1 US20130040707 A1 US 20130040707A1 US 201213475779 A US201213475779 A US 201213475779A US 2013040707 A1 US2013040707 A1 US 2013040707A1 Authority US United States Prior art keywords solar housing cell phone solar cell rechargeable battery Prior art date 2011-08-09 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US13/475,779 Other versions US9680189B2 ( en Inventor Theoda METCALF Original Assignee Theoda METCALF Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 2011-08-09 Filing date 2012-05-18 Publication date 2013-02-14 Priority claimed from US201161521392P external-priority 2012-05-18 Application filed by Theoda METCALF filed Critical Theoda METCALF 2012-05-18 Priority to US13/475,779 priority Critical patent/US9680189B2/en 2013-02-14 Publication of US20130040707A1 publication Critical patent/US20130040707A1/en 2017-06-13 Application granted granted Critical 2017-06-13 Publication of US9680189B2 publication Critical patent/US9680189B2/en Status Expired. Fee Related legal-status Critical Current 2033-02-16 Adjusted expiration legal-status Critical

    Links

    • 239000004020 conductor Substances 0.000 claims description 4
    • 230000001413 cellular Effects 0.000 description 2
    • 238000001514 detection method Methods 0.000 description 2
    • 238000004519 manufacturing process Methods 0.000 description 2
    • 238000004458 analytical method Methods 0.000 description 1
    • 238000010276 construction Methods 0.000 description 1
    • 230000000875 corresponding Effects 0.000 description 1
    • 238000010586 diagram Methods 0.000 description 1
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    • 230000005611 electricity Effects 0.000 description 1
    • 238000005516 engineering process Methods 0.000 description 1
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    Images

    Classifications

    • H — ELECTRICITY
    • H01 — ELECTRIC ELEMENTS
    • H01M — PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00 — Secondary cells; Manufacture thereof
    • H01M10/42 — Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46 — Accumulators structurally combined with charging apparatus
    • H01M10/465 — Accumulators structurally combined with charging apparatus with solar battery as charging system
    • H — ELECTRICITY
    • H04 — ELECTRIC COMMUNICATION TECHNIQUE
    • H04M — TELEPHONIC COMMUNICATION
    • H04M1/00 — Substation equipment, e.g. for use by subscribers
    • H04M1/02 — Constructional features of telephone sets
    • H04M1/0202 — Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026 — Details of the structure or mounting of specific components
    • Y — GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02 — TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E — REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00 — Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10 — Energy storage using batteries

    Abstract

    A solar cell phone includes a housing having a keypad, a display screen, other electronic components and a rechargeable battery. A diode switch within the housing is electrically connected to the rechargeable battery. A plurality of solar panels are mounted to the housing and electrically connected to the diode switch. The diode switch will allow the solar panels to supply electrical power to the rechargeable battery. An auxiliary battery within the housing receives electrical power from the solar panels. The auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic components within the housing.

    Description

    This application claims the benefit of Provisional Patent Application No. 61/521,392, filed on Sep. 8, 2011, in the United States Patent Trademark Office, the disclosure of which is incorporated herein by reference.

    Cell phones are very convenient, as they allow people to stay connected to friends and loved ones on the go, as well as enable people to conduct business when not in the same room. Certain activities, however, such as conference calls, long business calls, and playing games and videos, can drain the cell phone’s battery. In order to recharge the battery, individuals must be near an electrical outlet and must plug the phone into the outlet via a cord for extended lengths of time. If not around an outlet, the phone can die and the person can be stranded. An effective solution is necessary.

    The present invention is a solar cell phone with a plurality of small solar panels that can be used to charge the rechargeable battery of the cell phone, rather than using an electrical power source. The present invention can be especially useful for businesspeople who are constantly checking their email or talking to clients, as well as people who use their cell phones to watch TV, watch movies, play games, play music, and surf the Web. Individuals looking to reduce their electric use will appreciate the convenience and practicality afforded by the solar cell phone.

    Numerous innovations for solar powered cell phones have been provided in the prior art that will be described. Even though these innovations may be suitable for the specific individual purposes to which they address, however, they differ from the present invention.

    A FIRST EXAMPLE, U.S. Patent Office Publication No. 2002/0088486, Published on Jul. 11, 2002, to Chenx teaches a solar-powered device that is adapted to be disposed on a battery unit of a mobile telephone handset so as to charge the battery unit. The solar-powered device includes a light sensor, a photoelectric converting circuit coupled operably to the light sensor so as to convert light that is sensed by the light sensor into a corresponding current signal, and a current processing circuit, coupled electrically to the photoelectric converting circuit, for receiving and processing the current signal so as to result in a charging current that is adapted to charge the battery unit of the mobile telephone handset.

    A SECOND EXAMPLE, U.S. Patent Office Publication No.2005/0282591, Published on Dec. 22, 2005, to Shaff teaches a mobile telephone apparatus in which a solar power source is used to supplement battery power. A solar cell array is positioned on the surface of the telephone and supplies electric current to the telephone. A preferred embodiment of the present invention is equipped with speech recognition software that allows the user to issue commands (such as dialing the telephone) verbally to the telephone. In addition, this speech recognition may be used to operate an integrated AM/FM broadcast radio to allow the telephone to double as a radio. In an alternative embodiment, the solar mobile telephone is integrated into a headset to allow for convenient hands-free operation.

    A THIRD EXAMPLE, U.S. Patent Office Publication No.2006/0238163, Published on Oct. 26, 2006, to Chen teaches a mobile phone which includes a main body. The main body further includes a solar power module, a display module, and an input module (i.e., a keypad). The solar power module is adapted for providing electrical power to the mobile phone. The solar power module includes a solar cell panel configured for converting light energy to electrical power. The input module includes a control switch for setting the solar power module in one of the following states: “on”, “off”, or “storage”. Advantageously, the mobile phone can also be supplied with at least one heating pad disposed on the surface thereof, selectively controlled (e.g., on/off and/or a temperature chosen), to provide heat to a hand and/or other body part of a user.

    A FOURTH EXAMPLE, U.S. Patent Office Publication No. 2008/0143291, Published on Jun. 19, 2008, to Lin et al. teaches a communication apparatus with a solar energy charging function that includes a host and a display panel movably and pivotally coupled to the host to define a foldable mobile phone, and a solar panel is coaxially and pivotally coupled to a shaft of the host, such that the solar panel can be folded and covered onto an upper surface of the display panel. If the battery power of the mobile phone is low, users can individually lift the solar panel open from the display panel to charge the battery that is electrically coupled to the mobile phone, so as to enhance the power capacity, using time limit and battery charging requirements of the communication apparatus.

    A FIFTH EXAMPLE, U.S. Patent Office Publication No.2010/0167797, Published on Jul. 1, 2010, to Morichi teaches a cellular phone according to the present invention comprises a plurality of solar cell modules arranged on different surfaces of a casing, a plurality of electric power control parts connected to each of the plurality of solar cell modules, a mechanical form detection sensor as a state detection part for detecting a state of said cellular phone, and an electric power selection part.

    best, portable, solar, chargers, 2023, phones

    It is apparent now that numerous innovations for solar powered cell phones have been provided in the prior art that are adequate for various purposes. Furthermore, even though these innovations may be suitable for the specific individual purposes to which they address, accordingly, they would not be suitable for the purposes of the present invention as heretofore described.

    AN OBJECT of the present invention is to provide a solar cell phone that avoids the disadvantages of the prior art.

    ANOTHER OBJECT of the present invention is to provide a solar cell phone that is simple and inexpensive to manufacture.

    STILL ANOTHER OBJECT of the present invention is to provide a solar cell phone that is simple to use.

    BRIEFLY STATED, STILL YET ANOTHER OBJECT of the present invention is to provide a solar cell phone which comprises a housing having a keypad, a display screen, other electronic components and a rechargeable battery. A diode switch within the housing is electrically connected to the rechargeable battery. A plurality of solar panels are mounted to the housing and electrically connected to the diode switch. The diode switch will allow the solar panels to supply electrical power to the rechargeable battery. An auxiliary battery within the housing receives electrical power from the solar panels. The auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic

    The novel features which are considered characteristic of the present invention are set forth in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of the specific embodiments when read and understood in connection with the accompanying drawing.

    • 110 solar cell phone
    • 112 housing of solar cell phone 110
    • 114 keypad in housing 112
    • 116 display screen in housing 112
    • 118 rechargeable battery in housing 112
    • 120 diode switch in housing 112
    • 122 solar panel of solar cell phone 110
    • 124 auxiliary battery of solar cell phone 110
    • 126 front of housing 112
    • 128 back of housing 112
    • 130 side of housing 112
    • 132 thin solar cell in solar panel 122
    • 134 lead in solar panel 122

    As shown in FIGS. 1 and 3 the present invention is a solar cell phone 110 which comprises a housing 112 having a keypad 114, a display screen 116, other electronic components and a rechargeable battery 118. A diode switch 120 within the housing 112 is electrically connected to the rechargeable battery 118. A plurality of solar panels 122 are mounted to the housing 112 and electrically connected to the diode switch 120.

    As shown in FIG. 2 : each solar panel 122 comprises a series of thin solar cells 132 and a pair of leads 134, whereby one lead 134 is a negative conductor, while the other lead 134 is a positive conductor. Each lead 134 of the solar panel 122 can be comprised of a three watt size. Each lead 134 of the solar panel 112 can also be comprised of a four (04) watt size.

    The rechargeable battery 118 of the solar cell phone 110 is comprised of a 3.7-3.8 volt size. The auxiliary battery 124 of the solar cell phone 110 is comprised of a 3.7-3.8 volt size.

    As shown in FIG. 3 : the diode switch 120 will allow the solar panels 122 to supply electrical power to the rechargeable battery 118. An auxiliary battery 124 within the housing 112 receives electrical power from the solar panels 122. The auxiliary battery 124 will store the electrical power to recharge the rechargeable battery 118 when the diode switch 120 is in a non-operative position. The rechargeable battery 118 will continue to operate the keypad 114, the display screen 116 and the other electronic components within the housing 112. The solar panels 122 are mounted to the front 126, back 128 and sides 130 of the housing 112. The rechargeable battery 118 and battery 124 have about 3.7-3.8 volt size.

    The present invention allows an individual to charge the solar cell phone 110 with a plurality solar panels 122, thereby eliminating the current dependency on electricity. The solar cell phone 110 can be developed by using the same technology as solar-powered calculators. The solar cell phone 110 can be produced in many different styles and designs and through various providers. The exact specifications, materials used, and method of use of the solar cell phone 110 may vary upon manufacturing.

    It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the types described above.

    While the invention has been illustrated and described as embodiments of a solar cell phone, accordingly it is not limited to the details shown, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.

    Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute characteristics of the generic or specific aspects of this invention.

    Claims ( 7 )

    a) a housing having a keypad, a display screen, other electronic components and a rechargeable battery;

    c) a plurality of solar panels mounted to the housing and electrically connected to the diode switch, whereby the diode switch will allow the solar panels to supply electrical power to the rechargeable battery; and

    d) an auxiliary battery within the housing receives electrical power from the solar panels, whereby the auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic components within the housing.

    The solar cell phone as recited in claim 1. wherein the solar panels are mounted to the front, back, and sides of the housing.

    b) a pair of leads, whereby one lead is a negative conductor, while the other lead is a positive conductor.

    The solar cell phone as recited in claim 3. wherein each lead of the solar panel is comprised of a three watt size.

    The solar cell phone as recited in claim 3. wherein each lead of the solar panel is comprised of a four watt size.

    The solar cell phone as recited in claim 1. wherein the rechargeable battery is comprised of a 3.7-3.8 volt size.

    The solar cell phone as recited in claim 1. wherein the auxiliary battery is comprised of a 3.7-3.8 volt size.

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    US13/475,779 US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    US201161521392P 2011-08-09 2011-08-09
    US13/475,779 US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    US13/475,779 Expired. Fee Related US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

    Cited By (8)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US20130084919A1 ( en ) 2011-10-04 2013-04-04 Glynntech, Inc. Solar powered mobile phone
    US9398124B2 ( en ) 2014-12-04 2016-07-19 Octavio S. Portugal Cellular phone charging case assembly
    US9462634B1 ( en ) 2015-08-18 2016-10-04 Margarita Moore Mobile-cordless phone systems
    US20170141818A1 ( en ) 2015-11-13 2017-05-18 Kabushiki Kaisha Toshiba Power reception device, power transmission device, and wireless power transmission system
    US20170187233A1 ( en ) 2015-12-29 2017-06-29 Christopher Wilkinson Wireless battery recharger and application
    US10256663B2 ( en ) 2017-02-06 2019-04-09 Richie Singh Solar charging electronic device case
    US10310326B2 ( en ) 2016-10-10 2019-06-04 Hyperion Technology, LLC Liquid crystal display using the photovoltaic behavior of LED backlights as source of electrical energy
    USD957383S1 ( en ) 2018-11-06 2022-07-12 Joshua Montevirgen Solar-powered cellular phone cover

    Families Citing this family (2)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US11290052B2 ( en ) 2017-10-27 2022-03-29 Mary Ja Ne’ Williams Solar ultra-light operated battery and the method thereof
    USD974316S1 ( en ) 2020-05-05 2023-01-03 Michael Champion Solar-powered cell phone

    Citations (2)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US20110090626A1 ( en ) 2008-09-30 2011-04-21 Apple Inc. Cover for portable electronic device
    US20140103873A1 ( en ) 2006-06-01 2014-04-17 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices

    Patent Citations (2)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US20140103873A1 ( en ) 2006-06-01 2014-04-17 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
    US20110090626A1 ( en ) 2008-09-30 2011-04-21 Apple Inc. Cover for portable electronic device

    Cited By (12)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US20130084919A1 ( en ) 2011-10-04 2013-04-04 Glynntech, Inc. Solar powered mobile phone
    US9048927B2 ( en ) 2011-10-04 2015-06-02 Glynntech, Inc. Solar powered mobile phone
    US9398124B2 ( en ) 2014-12-04 2016-07-19 Octavio S. Portugal Cellular phone charging case assembly
    US9462634B1 ( en ) 2015-08-18 2016-10-04 Margarita Moore Mobile-cordless phone systems
    WO2017031244A1 ( en ) 2015-08-18 2017-02-23 Moore Margarita Mobile-cordless phone systems
    US20170141818A1 ( en ) 2015-11-13 2017-05-18 Kabushiki Kaisha Toshiba Power reception device, power transmission device, and wireless power transmission system
    US10027378B2 ( en ) 2015-11-13 2018-07-17 Kabushiki Kaisha Toshiba Power reception device, power transmission device, and wireless power transmission system
    US20170187233A1 ( en ) 2015-12-29 2017-06-29 Christopher Wilkinson Wireless battery recharger and application
    US9960635B2 ( en ) 2015-12-29 2018-05-01 Christopher Wilkinson Wireless battery recharger and application
    US10310326B2 ( en ) 2016-10-10 2019-06-04 Hyperion Technology, LLC Liquid crystal display using the photovoltaic behavior of LED backlights as source of electrical energy
    US10256663B2 ( en ) 2017-02-06 2019-04-09 Richie Singh Solar charging electronic device case
    USD957383S1 ( en ) 2018-11-06 2022-07-12 Joshua Montevirgen Solar-powered cellular phone cover

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    Effective date: 20210613

    Top Solar Panels for Camping, Basecamping, and Outdoor Adventures

    Electronics are a part of the adventurer’s quiver of tools more than ever before. Thanks to efficiency advances and cost decreases in solar cells, portable solar chargers are finally proving to be a viable means of providing electricity outdoors. A backcountry user might carry a smartphone, GoPros, headlamp, tablet, camera, headphones, and PLB or GPS devices. A family on an extended weekend trip will likely bring multiple smartphones, tablets, speakers, laptops, electric lanterns, and more. Rafters, climbers, bikepackers, and mountain bikers on a weekend mission might haul out even more high-powered lights and GoPros, radios, and other electronic equipment.

    By harnessing the energy of the sun, anyone can charge their legion of devices rather than carrying physical batteries or draining the battery in their vehicle or camper. From portable solar chargers that can accommodate multiple devices during a family camping trip, to power banks that hold the biggest charge, to lightweight options for backcountry users that weigh under a pound, we reviewed top models to find the best portable solar chargers for most outdoor uses. Plus, we’ve got tips and tricks on how to get the most out of your portable solar panels, power banks and chargers.

    We create reader-supported, objective gear reviews that are independently selected by our editors. This story may contain affiliate links, which help fund our website. When you click on the links to purchase gear, we may get a commission, without costing you an extra cent. Thank you for supporting our work and mission of outdoor coverage for every body! Learn more.

    The Best Portable Solar Chargers

    We had three clones to evaluate, all of which performed similarly well, so it was hard to determine which of those to award. However, one did surpass the others, as various sites have mentioned. We also considered different use cases in making our final judgments. As such, some of our winners are in unique categories.

    Overall Winner: Big Blue 28W USB Solar Charger

    Weight: 1 pound, 5 ounces

    Solar Cell Output Capacity: 10 watts

    Power Output to Device: USB, 5V up to 2A (28W max)

    Foldable: Yes

    Integrated battery: No

    Ports: 2, 2.4 Amp USB-A Ports

    What we liked: simple, lightweight, provides more power than similar models, can charge multiple small devices, includes anmeter

    What we didn’t like:

    We concur with many review sites and consumer reviews that the 1 pound, 5 ounce Big Blue 28W USB Solar Charger was the best for most outdoor use. It’s a simple, lightweight, and powerful solar power charger that seems to provide a little more power than its competition. It will also provide enough power in direct sunlight to charge multiple small devices for one or two people.

    The Big Blue unit we tested also included an ammeter, which displays the amount of electrical current the solar panel is generating, setting it apart from the competition. That allowed us to see that the device was working and how much energy it was producing.

    COMPARE OF THE BIG BLUE SOLAR CHARGER

    Other than that, we found that it was remarkably, if not eerily, similar to two other top-rated solar chargers we evaluated. All three (the Anker 21 Watt PowerPort Solar charger, the Nekteck 28 Watt solar charger, and the BigBlue 28W USB Solar Charger) use the same basic design with two USB-ports and a light to indicate that they’re getting a charge; the Big Blue’s light indicator is the ammeter.

    The solar cells in these foldable units are encased in PET polymer and surrounded by polyester canvas. Each offers moderate IPX4 water resistance — although you don’t really want to use these devices in the rain anyhow. They’re so similar they even use the same solar cells — SunPower’s Maxeon solar cells — which are among the most efficient commercially available solar cells and can convert up to 25 percent of the sun’s energy.

    Each of these solar chargers had metal grommets in the casing, which allows you to attach them to a rock, backpack, tent, or camp chair. Each has a pouch where you can store the devices being charged and cords for charging your devices. None had kickstands or means to orient them to the sun properly, so you’ll have to get a little more creative, like propping them up on a rock, attaching them to your tent, or attaching them to your backpack to orient them properly to get the most power out of them in camp.

    The Big Blue did better than the competition in tests, producing just under 950 milliamp-hours (mAh) of energy in an hour. In relatively similar conditions, the Anker produced 733 mAh, and the Nekteck produced 834 mAh. Without a dedicated test facility and control environment, it is hard to offer a complete scientific evaluation of the differences between these three since clouds could have obscured the sun for part of the testing periods.

    In our experience, the Big Blue (or other similar solar panels) will integrate best into your outdoor lifestyle with the help of an external battery, like the Anker. The solar panel charges the battery, and then the battery provides a steady charge to reliably and safely charge your phone. See our section below on batteries for more details.

    The Big Blue offered the highest power output among these three, and its cost is essentially the same as the Nekteck, so The Big Blue edged out the Nekteck as the best solar charger. It’s easy to use, well-priced, and offers enough portable power to charge a backup battery. Best yet, it is rugged enough to last for years.

    Interested in backpacking gear? See our Backpacking section for our most popular stories.

    The Best Solar Charger for Basecamping: Goal Zero Nomad 50

    Weight: 6 pounds

    Solar Cell Output Capacity: 50 watts

    Power Output to Device: USB: 5V up to 2.4A (12W max)/8mm: 14-22V, up to 3.5A (50W Max)

    Foldable: Yes

    Integrated battery: Goal Zero Sherpa 100 AC sold separetely

    Ports: 1 2.4 Amp USB-A Port, 1, 3.3 Amp Solar Port in 8mm, 1, 3.3 Amp Solar Port out 8mm

    What we liked: can be linked with other solar panels for even greater charging, kickstands to properly orient to sun, can almost fully charge 2 laptops

    What we didn’t like: size and weight make best suited for camping, not backpacking

    The Goal Zero Nomad 50 is a larger solar charger that also wins our award for Best Solar Charger for Car Camping and Best Solar Charger for Basecamping and our Best Upgrade Solar Charger award. At 50 watts, it’s the biggest and heaviest solar charger we tried. But if we were doing a couple of weeks in a high mountain cirque with fellow adventurers and we wanted to cut battery weight while keeping our electronics charged, this is the charger we’d choose.

    Likewise, if we’re powering all the devices a family needs on a week-long camping trip and they don’t want to drain a car or RV battery, we’d turn to the Goal Zero as our solar charger of choice. Similarly, it’s a good choice for road tripping or overlanding off-grid. It could also be used to work a remote aid station during an ultramarathon or adventure race.

    COMPARE OF THE GOAL ZERO NOMAD 50

    The Goal Zero is an obvious choice for camping and basecamping for other reasons as well. It’s the only solar charger we evaluated that can be linked to other solar panels and the only one that can be attached in a series to provide even greater charging power to a battery power bank.

    With solar cells covered in a polymer and the whole unit encased in a durable polyester, the Nomad is like the larger sibling of the three clones (Big Blue, Anker, and Nektek).

    Instead of two cells per foldable solar panel, each of its four panels has 12 cells. It has one USB connector that can provide up to 12 watts of charging power, but it also has a Goal Zero solar port connector that allows it to provide up to 50 watts of charging power or connect to other Goal Zero panels. Like the BioLite solar charger, the Nomad also has kickstands to help ensure it’s properly oriented to the sun.

    All of those extra features and solar cells add weight and size. Unlike the clones, the Nomad 50 would take up a significant portion of a backpack. Folded up, it’s almost a foot wide and nearly 1 foot and a half tall. That’s roughly the size of an average male’s torso, and it weighs 6 pounds, 14 ounces. Even if it were attached to the front of Frankenstein’s backpack, it would likely drag on the ground like an oddly stiff cape.

    But once unfurled and set up in camp, it can provide enough energy to power a laptop and charge a significantly larger battery than the smaller chargers can power. When combined with a Goal Zero’s Sherpa 100AC power bank, it can charge in 6 or fewer hours in good sun. That 94.7 watt/hour battery includes an inverter allowing it to charge AC devices, like those that plug into a wall outlet. It can almost fully charge two 13” MacBook Pros on a single charge, and since it can deliver at higher wattages and voltages, it can provide higher charging speeds.

    Interested in camping gear? See our Camping section for our most popular stories.

    The Best Solar Charger with Integrated Battery: BioLite SolarPanel 10

    Weight: 1 pound, 3.4 ounces

    Solar Cell Output Capacity: 10 W

    Battery Storage Capacity (mAH): 3,200 milliamp hours

    Power Output to Device: 10 W via USB charge out

    Foldable: Yes

    Integrated battery: Yes, Battery Storage Capacity (mAH): 3,200 milliamp hours

    Ports: 1 Micro USB in 1 2.4 Amp USB-A out

    What we liked: includes integrated battery that works as power bank, can pre-charge included powerbank, easy to align with sun to get the most efficient charge, designed to reduce overheating (that impacts efficiency)

    What we didn’t like: would be more useful if it were 21W and had storage 10,000 mAH

    Though the BioLite SolarPanel 10 is the smallest solar charger we tested at just 10 watts, it’s the most fully featured and the only solar charger we tested that came with an integrated battery that works as a power bank. The 3,200 mAh battery is slightly larger than the iPhone 11’s 3100 mAh battery and could provide an iPhone with a full charge. You can also charge the integrated battery power bank via micro-USB. So users can pre-charge it for adventures so they can charge devices at camp even if the sun’s obscured or down when they get there. Indeed, starting every adventure with fully charged devices and auxiliary batteries is key to getting the most out of your electronic charging system in the backcountry.

    COMPARE OF THE BIOLITE SOLARPANEL 10

    The SolarPanel 10 also has a radically different design than every other portable panel we tested and most others available. All of its solar cells are encased in a ruggedized, dimpled plastic. BioLite says its solar panel design helps dissipate excess heat, which can cause a solar panel to produce less power than it otherwise would.

    Like the other small solar chargers we evaluated, the corners feature holes allowing users to attach them to a backpack or tent. But its analog Optimal Sun System, consisting of an analog sundial, as well as its rotating kickstand, play an important part in making sure you get the most from the charger at any given time.

    By aligning the shadow of the dot in the middle of the window, you ensure that the device sends as much solar power to connected devices and the battery as possible. The kickstand clicks into place throughout its rotation, making it easy to adjust the pitch of the portable solar panel to get the optimal placement at any given time.

    While we found all these features very useful, we found that when first deploying the solar panel, it didn’t want to stay open until after it warmed in the sun a bit. Also, if its ability to absorb sunlight was larger — even in the 21 watt range — and its energy storage capacity was larger, even around 10,000 mAh, it could have been the Overall Winner.

    Honorable Mentions

    Both the Anker portable charger and Nekteck portable charger fell a little short of the Big Blue, our overall winner (see review above). Either offer a great value, but we think the Big Blue has the most to offer for the money.

    Anker 21 Watt PowerPort Solar Charger

    Weight: 14.7 ounces

    Solar Cell Output Capacity: 21W

    Power Output to Device: 21W to device via USB

    Foldable: Yes

    Integrated battery: No

    Ports: 2, 2.4 Amp USB-A Ports

    The now discontinued Anker 21 Watt PowerPort Solar Charger may no longer be available, but we think it’s worth putting on your radar for a few reasons. First, it’s a near-clone of the Big Blue (see review above), our overall winner, so it’s a good example of the similarities between solar panels on the market. Second, it is still widely available on sites such as ebay for folks interested in buying a used solar panel.

    One difference is that it was slightly smaller and lighter (15 ounces) than the Big Blue. The Anker produced a little less power in a given time in similar conditions, as expected. Its charging pouch also had a hook-and-loop closure rather than a zippered closure like the other clones. It didn’t include an ammeter. Ultimately, even when the Anker was available, we found the Big Blue to be a better choice given the amount of power it generated.

    Nekteck 28 Watt Solar Charger

    Weight: 1.44 pounds

    Solar Cell Output Capacity: 28W

    Power Output to Device: 28W via USB

    Foldable: Yes

    Integrated battery: No

    Ports: 2, 2.4 Amp USB-A Ports

    Without the branding, from the outside, the Nekteck 28 Watt solar charger is essentially indistinguishable from the Big Blue. our overall winner (see review above). The specs are similar. Opened up, and without the ammeter, they look essentially identical, too.

    However, in the end, it didn’t perform quite as well as the Big Blue — even though it uses the same solar cells and design. In relatively similar conditions, the Anker produced 733 mAh, and the Nekteck produced 834 mAh. It also has a claimed weight of 1 pound, 7 ounces — two ounces heavier than the Big Blue.

    Understanding solar chargers

    There’s a lot to understand about solar power chargers, but at their heart, a small solar panel consists of several photovoltaic cells grouped together to absorb some of the sun’s energy and convert it into an electric charge that you can use to charge electronics.

    Modern, commercially available solar cells can harness nearly 25 percent of the sun’s energy that hits them into electricity. You’ll find this in the most efficient foldable chargers. When these cells are combined together into small solar panels, the solar cells can provide enough energy to recharge the batteries in USB devices and they can weigh under a pound, making them a lightweight option for backcountry adventures across the world.

    Why choose a solar generator over other choices?

    A portable solar charger is a lightweight and more compact means of electricity generation compared with other means of mobile energy generation. This is advantageous when on the trail and in remote locations because carrying multiple batteries and other means of electricity generation quickly becomes cumbersome as you add more energy storage to your pack. After all, no one wants to carry a gas generator — and gas — on their backs into the woods to provide power for all of their electronic devices. And while we’ve seen some portable wind and micro-hydro turbine generators, like the WaterLily Turbine. they’re also cumbersome, if not heavy. Solar panels are among eco-friendly gear swaps to reduce your environmental impact. especially if your base camp would otherwise run on a gas generator.

    Solar chargers, combined with a power bank or backup battery pack — particularly those that can accommodate through charging (i.e., charging itself while charging devices) — are the best, lightest way to charge your electronic equipment.

    While most adventurers are looking primarily for a portable phone charger, solar chargers can power:

    • cameras and camera batteries
    • GPS hiking and backpacking watches
    • GoPros and other vlogging or podcasting equipment
    • two-way satellite messengers and Personal Locator Beacons (PLBs)
    • ebooks
    • tablets
    • GPS units
    • headlamps
    • laptops
    • bluetooth speakers
    • wireless headphones
    • SteriPens
    • mountain bike lights
    • sonar devices

    Anytime you’re out for multiple days or weeks in the backcountry, you’ll likely have electronics that need charging. Solar panels work for camping, boating, climbing, bikepacking, mountaineering, and other activities.

    Most mobile solar charging units have at least one USB port, making it easy to charge most devices and batteries people take into the wild. Still, many smaller solar chargers will struggle to provide enough power to charge multiple devices simultaneously.

    Yes, Watson, Watts matter (or why watts matter)

    The most important thing about a solar panel charger is its wattage. The more watts, the more sunlight the solar panel can absorb and the more electricity it can generate. If you only need to power your own devices and don’t plan on using them continually while on the trail, you may only need to charge them once every few days or even once a week. In that case, a smaller unit like the BioLite SolarPanel 10 with an integrated battery pack is an excellent choice, but the 10 watt foldable solar panel only has one USB port and wouldn’t be powerful enough to charge a family’s devices on a five-day trip.

    On the other hand, our Best for Camping winner, the 50 Watt Goal Zero Nomad 50 Solar Panel. along with the Sherpa 100 AC battery. could handle the needs of a family on a week-long trip or a group of mountaineers exploring a range out for an extended period. The Goal Zero system is significantly larger, heavier, and much more expensive. But this system with this power bank battery has an AC plug and is the only one we considered that charges devices such as large laptops.

    We don’t normally advocate getting rid of gear before its end of life, but in this case, if you have a backup battery or power bank that isn’t chargeable via USB, consider recycling it and replacing it with one that is. Similarly, consider USB chargeable devices like headlamps.

    While you can use rechargeable AA and AAA powered headlamps, using one device or cable to charge most of your equipment can simplify your carry. When Intel’s Chief Systems Technologist Ajay Bhatt led the development of USB standards in 1996 and companies started using it, he essentially began a process of universalizing charging and connectivity for all devices. Now, USB technology allows us to easily recharge cameras and GoPros as well as smaller electronics like wireless earbuds.

    How we Researched and tested

    Research

    When researching the best camping solar chargers, we explored websites in the outdoor media sphere, and the tech and science spheres as geeks and gear heads are the most likely to use portable solar chargers to power their electronics.

    We chose the models we tested based on reviews and articles we read and analyzed from other reliable sources, including Lifewire, Gear Institute, Backpacker, Wirecutter, The Adventure Junkies, Popular Mechanics, Outdoor GearLab, and others (see Sources). We also looked at verified customer reviews to gather data from professional reviewers and actual users.

    How We Tested

    We tested these foldable solar panels on multiple days in the field, at campsites, and at home, sometimes even hanging them out of a south-facing window on sunny days of full Colorado summer sunshine. Despite multiple uses and attempts, none of the solar chargers we tested reached the manufacturer’s claimed fully-rated wattages for maximum power output during our tests.

    We attached each solar panel to a USB digital tester and various battery packs and other electronic devices we use in the backcountry, including GPS units, Bluetooth headphones, bike lights, headlamps, and more. We attempted to charge our iPhones and iPads directly but found they wouldn’t accept the charge since the power varied too much with the sun and clouds — even on some bluebird days. We found it was better to use them to charge a backup battery or power bank with through charging capabilities and then use that battery to charge our devices while it was charging via the solar panel.

    We attempted to test some of the chargers while hiking but found that even though companies place attachment points on the solar chargers to attach them to backpacks, they didn’t perform well in real-world testing that way. We’ll explain why in another section.

    We found that the digital USB tester wasn’t as applicable to the Goal Zero and BioLite contenders. This is because we couldn’t connect the digital USB tester to the higher wattage power cord of the Goal Zero, and the BioLite’s solar charge controller and portable battery power bank can provide a more conditioned stream of power from the battery.

    buying advice

    When looking for a good solar charger, there are many things to consider. First and foremost, you’ll want to determine what you’ll use it for as well as how many devices it will power. Secondly, consider how long you’ll be in the backcountry and how much energy storage and battery capacity you want to carry.

    We looked at a wide range of solar chargers and, in some cases, energy storage units (aka batteries). We also came up with some different conclusions than other review sites based on our knowledge and our anticipation of how you’ll actually be able to use a solar charger in the field.

    For instance, unlike many other reviews and ‘best of’ lists we evaluated, we firmly recommend using solar chargers with backup batteries. Many high-end electronics like smartphones and tablets require a steady, regulated, or conditioned stream of electricity to charge. It helps limit the amount of damage that a surge or dip in solar power can do to the sensitive electronics inside the device.

    Efficiency and power output

    Efficiency and power output are two separate, but related, things. Efficiency refers to the efficiency of the solar cells in a panel and also the panel itself. The solar cells in the panel have a higher efficiency than the overall panel as some of the energy they capture is lost in transmitting energy through the wires and electronics of the solar panel. The most efficient commercial solar cells are around 24 percent efficient. A solar panel or charger, however will likely be in the range of 18 to 21 percent efficient.

    Power output is measured in terms of wattage or how many watts of energy a solar panel can output. The more efficient a solar panel is means it can output more watts and amps from a smaller area. For charging devices you’ll want a solar panel that’s capable of producing at least 5 watts, however many highly portable solar panels produce up to 28 watts of charging power in ideal conditions. Higher wattages do equal more charging power—however, since most of these solar panels still use USB-A style plugs, they can only produce 2.4 amps of current through those plugs.

    Portability and size

    The smallest outdoor solar panels we evaluated are 5 watts. These are about the size of a medium tablet, like the BioLite SolarPanel 5. and weigh less than a can of beer. They can produce enough power to slowly charge a smartphone or other device. At 8 inches by 9.75 inches, they’re easy to slip into a day pack.

    The largest portable solar panel we tested was the 6 pound Goal Zero Nomad 50. which folds down to just over 17 inches long by 11 inches wide and is well over an inch thick at its thickest parts, making it hard to fit in most backpacks. When set up it folds out to 53 inches wide. It was also the most powerful solar panel we tested and is capable of charging a battery that can charge laptops.

    Durability and weather resistance

    While these panels will last for years and even decades with proper care, they’re not designed to be left out in the elements like a permanent installation. They are encased in abrasion-resistant fabrics and plastics and are foldable.

    The solar cells are encased in impact-resistant plastic and the units usually have an IPX4 water-resistant rating, meaning they can handle water splashes but not much more than that. That shouldn’t be a surprise since the majority of portable solar panels have standard USB-A ports with no waterproof cover.

    Battery capacity

    The majority of the solar panels tested don’t have batteries. The BioLite SolarPanel 5 and BioLite SolarPanel 10 have 3,200 mAh batteries. That’s enough to charge an iPhone 13 or 14 one time. You can also pre-charge these batteries before you leave and use them to charge a device while it’s in your pack or at night and recharge the battery with the sun.

    Direct solar charging speed

    If the solar panel is optimally placed in full sun it should be able to produce its maximum wattage rating. In these cases, a panel like the Anker 21 Watt PowerPort Solar Charger should be able to provide enough energy to charge 2 USB devices simultaneously at 2.4 amps, the same as many 12-Volt USB adapters used in cars.

    Multiple device solar charging speed

    In ideal, full-sun conditions a 20 or more watt solar charger with two (or more) USB ports should be able to charge multiple devices at up to 2.4 amps like most 12-Volt USB adapters used in cars. A more powerful panel should be able to charge more, but the device has to be able to handle higher charging amperages like those that use USB-C connections.

    Additional features and accessories

    The majority of portable solar panels for camping are pretty minimal in terms of features. Most consist primarily of the panel and USB ports. Additional features include a for cables, grommets or loops to attach the panels to a pack or tent, and on some, stands to help keep the panel upright and at the right angle. A few, like the BioLite panels, have integrated batteries and they also have a little sundial that helps users properly orient the panel so that optimum sun hits the solar cells.

    When it comes to accessories, there are two main accessories you can use with the solar panels, cords and batteries.

    We highly recommend using these with a backup battery rather than plugging a Smart device directly to them. Some Smart devices limit the speed at which the devices can charge when dealing with a variable power source, like a solar panel. Backup batteries, however, can better harvest the variable currents flowing from a solar panel.

    Price and value for money

    The price of basic solar panels isn’t very high, about 67 for our Best Overall pick, the Big Blue 28W USB Solar Charger. If you have an existing backup battery and know you’ll be camping out for days and need extra power for your electronics when camp is set up, it’s a decent investment. If you’re hoping it’ll power your devices while strapped to the outside of your pack and hiking, you’ll be displeased. Despite advertising photos, even in sunny Colorado where we tested all the devices, these panels weren’t great at delivering power consistent enough to charge devices while hiking with them on a pack.

    Integrated Battery or Power Bank

    Unlike many other reviews and ‘best of’ lists we evaluated, we firmly recommend using solar chargers with backup batteries. Many high-end electronics like smartphones and tablets require a steady, regulated, or conditioned stream of electricity to charge. It helps limit the amount of damage that a surge or dip in solar power can do to the sensitive electronics inside the device.

    In addition, carrying a pre-charged backup battery or power bank and a way to easily charge all your devices when you’re in town or your vehicle can reduce the amount of charging you’ll need to do on the trail. Pre-charging or recharging a backup battery or power bank via the wall or your vehicle will almost always be faster than charging via a solar panel.

    The other two models we evaluated cost more. The BioLite, which is only a 10 watt solar panel, retails for 150. However, it’s also the only solar charger we tested with an integrated battery (sometimes called a portable solar power bank). It also has a kickstand, and a unique but simple mechanism called the Optimal Sun System, which helps orient the charger to get the maximum amount of sunlight available. It’s also unique in that it’s encased entirely in plastic.

    The Goal Zero Nomad 50 Solar Panel. our winner for Best Solar Charger for camping (see review above) had the highest wattage of any unit we tested at 50 watts and was the most expensive unit we tested at 250. It was also the largest and heaviest, but it is the only one that can provide a charge at a higher wattage and voltage.

    With panels this small, when the skies are gray, don’t expect much power output. The 50 watt, Goal Zero Nomad 50 should still produce enough energy to trickle-charge a smartphone but smaller panels will slow down to producing very small amounts of power, suitable only for trickle charging a backup battery.

    The 4 best solar phone chargers of 2023

    The struggle to keep your phone charged while out and about is real, especially while on the road, during camping trips, backpacking, at festivals, or spending the day in the park. The good news is that there is now an easy charging solution. solar phone chargers.

    These portable chargers allow us to take advantage of free and abundant solar power to ensure that we’ll never be without a backup for charging all of our phones, no matter where we are.

    There are virtually thousands of options for solar phone chargers available online. But don’t worry, we did the hard work for you and scoured the internet for the best solar phone chargers in 2023.

    Note: This is an unbiased review: we have no financial ties with any of the companies mentioned, nor do we earn money from affiliate advertising. The content of this blog is based on research and information available at the time of writing.

    Why you can trust SolarReviews:

    SolarReviews is the leading American website for consumer reviews and ratings of residential solar panels and solar panel installation companies. Our industry experts have over two decades of solar experience combined and maintain editorial independence for their reviews. No company can pay to alter the reviews or review scores shown on our site. Learn more about SolarReviews and how we make money.

    The best solar phone chargers of 2023

    Here are our picks for the best solar phone chargers on the market.

    best, portable, solar, chargers, 2023, phones

    Best overall solar charger: BigBlue 28W USB solar charger

    Our top pick, the BigBlue 3, with its four solar panels and a compact design. Image source: BigBlue

    Price: 68.96 Buy Now

    Pros: The BigBlue 28W USB Solar Charger is our pick for the Best Overall solar charger. With four highly efficient foldable SunPower solar panels that fit into a compact bag, they can be easily stored in your backpack. It has two charging USB output ports, so it can charge up to three devices while still delivering decent power. Reviews consistently claim that the charger provides decent output in cloudy conditions, as well.

    Cons: This charger’s on the heavier side for solar panel chargers, weighing in at 1.3 pounds, even though it doesn’t come with an external battery bank. Although it will fit nicely in your backpack, it might weigh you down. If you want to store power for later, you have to purchase a battery bank separately.

    Compatibility: Most 5 volt USB rechargeable devices, including iPhones and Androids. Not compatible with the iPad Pro.

    Best budget charger: BLAVOR Qi Solar Power Bank Portable Charger

    The BLAVOR QI portable charger is a great option for avid hikers who need a durable portable charging option. Image source: Amazon

    Price: 26.99 Buy Now

    Pros: Because the BLAVOR Qi Portable Solar Charger is durable, shockproof, and weighs only 10 ounces. it is the best solar charger in terms of portability and is ideal for hiking and camping. It has over 25,000 reviews, with an overall 4.4-star rating on Amazon. This solar charger power bank adds virtually no weight to your backpack and is wireless. That’s right. you don’t have to worry about having a cord to charge your phone. Simply place it on the charger and you’re good to go. It also acts as a flashlight and comes with a compass.

    Cons: The BLAVOR Qi is so lightweight because it has only one small solar panel. This means it can take a very long time to charge using the sun. Most users will charge the battery as much as they can at home and then let it sit in the sun to top it off.

    Compatibility: iPhone, Samsung, Android, Windows, GoPro, GPS, tablets, and most USB charging devices.

    Best travel charger: Hiluckey Outdoor USB-C Portable charger

    Hilucky’s Outdoor solar phone charger has great reviews and is one of Amazon’s Choice picks for portable solar panels. Image source: Amazon

    Price: 46.99 Buy Now

    Pros: Hilucky’s Solar Phone Charger comes equipped with four fold-out solar panels that charge its battery bank. The included rechargeable battery can fully charge a smartphone over 7 times. It comes with LED light settings, making it perfect for outdoor use. It has enough USB ports to charge three devices.

    Cons: Having four solar panels makes it a little bulky, even if it does increase the surface area of the charger in order to collect sunlight. It will also add an extra 1.3 pounds to your backpack.

    Compatibility: Almost all 5V devices such as iPhones, iPads, tablets, and other smartphones.

    QiSa 38,800mAh Solar Power Bank

    The QiSa charger has a compact, foldable design that provides you power you can easily take with you. Image source: Amazon

    Price: 89.98 Buy Now

    Pros: QiSa’s charger is compact but doesn’t sacrifice on power. This makes it a great option to put in your backpack on a hiking trip or even take it with you on your commute, just in case. It can charge three devices at once and has a wireless charging function, so you don’t even have to fuss with cords. The device itself is waterproof and drop-proof. It also has a built-in flashlight!

    Cons: Although it has overwhelmingly positive reviews, some commeters report that the QiSa’s charging speed is a bit slow, especially when on the wireless charger. The wireless charger also has an auto-off function that can make be frustrating if you’re trying to juice up a dead phone. Plus, this is a more expensive option than some others on our list.

    Compatibility: most USB-C devices

    What features to look for in a solar phone charger

    When you’re shopping for a solar phone charger, there are a few things to keep in mind to make sure you get the right one for your needs, including:

    US20130040707A1. Solar cell phone. Google Patents

    Publication number US20130040707A1 US20130040707A1 US13/475,779 US201213475779A US2013040707A1 US 20130040707 A1 US20130040707 A1 US 20130040707A1 US 201213475779 A US201213475779 A US 201213475779A US 2013040707 A1 US2013040707 A1 US 2013040707A1 Authority US United States Prior art keywords solar housing cell phone solar cell rechargeable battery Prior art date 2011-08-09 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US13/475,779 Other versions US9680189B2 ( en Inventor Theoda METCALF Original Assignee Theoda METCALF Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 2011-08-09 Filing date 2012-05-18 Publication date 2013-02-14 Priority claimed from US201161521392P external-priority 2012-05-18 Application filed by Theoda METCALF filed Critical Theoda METCALF 2012-05-18 Priority to US13/475,779 priority Critical patent/US9680189B2/en 2013-02-14 Publication of US20130040707A1 publication Critical patent/US20130040707A1/en 2017-06-13 Application granted granted Critical 2017-06-13 Publication of US9680189B2 publication Critical patent/US9680189B2/en Status Expired. Fee Related legal-status Critical Current 2033-02-16 Adjusted expiration legal-status Critical

    Links

    • 239000004020 conductor Substances 0.000 claims description 4
    • 230000001413 cellular Effects 0.000 description 2
    • 238000001514 detection method Methods 0.000 description 2
    • 238000004519 manufacturing process Methods 0.000 description 2
    • 238000004458 analytical method Methods 0.000 description 1
    • 238000010276 construction Methods 0.000 description 1
    • 230000000875 corresponding Effects 0.000 description 1
    • 238000010586 diagram Methods 0.000 description 1
    • 230000000694 effects Effects 0.000 description 1
    • 230000005611 electricity Effects 0.000 description 1
    • 238000005516 engineering process Methods 0.000 description 1
    • 230000002708 enhancing Effects 0.000 description 1
    • 238000010438 heat treatment Methods 0.000 description 1
    • 239000000463 material Substances 0.000 description 1
    • 230000004048 modification Effects 0.000 description 1
    • 238000006011 modification reaction Methods 0.000 description 1
    • 238000006467 substitution reaction Methods 0.000 description 1

    Images

    Classifications

    • H — ELECTRICITY
    • H01 — ELECTRIC ELEMENTS
    • H01M — PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00 — Secondary cells; Manufacture thereof
    • H01M10/42 — Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46 — Accumulators structurally combined with charging apparatus
    • H01M10/465 — Accumulators structurally combined with charging apparatus with solar battery as charging system
    • H — ELECTRICITY
    • H04 — ELECTRIC COMMUNICATION TECHNIQUE
    • H04M — TELEPHONIC COMMUNICATION
    • H04M1/00 — Substation equipment, e.g. for use by subscribers
    • H04M1/02 — Constructional features of telephone sets
    • H04M1/0202 — Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026 — Details of the structure or mounting of specific components
    • Y — GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02 — TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E — REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00 — Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10 — Energy storage using batteries

    Abstract

    A solar cell phone includes a housing having a keypad, a display screen, other electronic components and a rechargeable battery. A diode switch within the housing is electrically connected to the rechargeable battery. A plurality of solar panels are mounted to the housing and electrically connected to the diode switch. The diode switch will allow the solar panels to supply electrical power to the rechargeable battery. An auxiliary battery within the housing receives electrical power from the solar panels. The auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic components within the housing.

    Description

    This application claims the benefit of Provisional Patent Application No. 61/521,392, filed on Sep. 8, 2011, in the United States Patent Trademark Office, the disclosure of which is incorporated herein by reference.

    Cell phones are very convenient, as they allow people to stay connected to friends and loved ones on the go, as well as enable people to conduct business when not in the same room. Certain activities, however, such as conference calls, long business calls, and playing games and videos, can drain the cell phone’s battery. In order to recharge the battery, individuals must be near an electrical outlet and must plug the phone into the outlet via a cord for extended lengths of time. If not around an outlet, the phone can die and the person can be stranded. An effective solution is necessary.

    The present invention is a solar cell phone with a plurality of small solar panels that can be used to charge the rechargeable battery of the cell phone, rather than using an electrical power source. The present invention can be especially useful for businesspeople who are constantly checking their email or talking to clients, as well as people who use their cell phones to watch TV, watch movies, play games, play music, and surf the Web. Individuals looking to reduce their electric use will appreciate the convenience and practicality afforded by the solar cell phone.

    Numerous innovations for solar powered cell phones have been provided in the prior art that will be described. Even though these innovations may be suitable for the specific individual purposes to which they address, however, they differ from the present invention.

    A FIRST EXAMPLE, U.S. Patent Office Publication No. 2002/0088486, Published on Jul. 11, 2002, to Chenx teaches a solar-powered device that is adapted to be disposed on a battery unit of a mobile telephone handset so as to charge the battery unit. The solar-powered device includes a light sensor, a photoelectric converting circuit coupled operably to the light sensor so as to convert light that is sensed by the light sensor into a corresponding current signal, and a current processing circuit, coupled electrically to the photoelectric converting circuit, for receiving and processing the current signal so as to result in a charging current that is adapted to charge the battery unit of the mobile telephone handset.

    A SECOND EXAMPLE, U.S. Patent Office Publication No.2005/0282591, Published on Dec. 22, 2005, to Shaff teaches a mobile telephone apparatus in which a solar power source is used to supplement battery power. A solar cell array is positioned on the surface of the telephone and supplies electric current to the telephone. A preferred embodiment of the present invention is equipped with speech recognition software that allows the user to issue commands (such as dialing the telephone) verbally to the telephone. In addition, this speech recognition may be used to operate an integrated AM/FM broadcast radio to allow the telephone to double as a radio. In an alternative embodiment, the solar mobile telephone is integrated into a headset to allow for convenient hands-free operation.

    A THIRD EXAMPLE, U.S. Patent Office Publication No.2006/0238163, Published on Oct. 26, 2006, to Chen teaches a mobile phone which includes a main body. The main body further includes a solar power module, a display module, and an input module (i.e., a keypad). The solar power module is adapted for providing electrical power to the mobile phone. The solar power module includes a solar cell panel configured for converting light energy to electrical power. The input module includes a control switch for setting the solar power module in one of the following states: “on”, “off”, or “storage”. Advantageously, the mobile phone can also be supplied with at least one heating pad disposed on the surface thereof, selectively controlled (e.g., on/off and/or a temperature chosen), to provide heat to a hand and/or other body part of a user.

    A FOURTH EXAMPLE, U.S. Patent Office Publication No. 2008/0143291, Published on Jun. 19, 2008, to Lin et al. teaches a communication apparatus with a solar energy charging function that includes a host and a display panel movably and pivotally coupled to the host to define a foldable mobile phone, and a solar panel is coaxially and pivotally coupled to a shaft of the host, such that the solar panel can be folded and covered onto an upper surface of the display panel. If the battery power of the mobile phone is low, users can individually lift the solar panel open from the display panel to charge the battery that is electrically coupled to the mobile phone, so as to enhance the power capacity, using time limit and battery charging requirements of the communication apparatus.

    A FIFTH EXAMPLE, U.S. Patent Office Publication No.2010/0167797, Published on Jul. 1, 2010, to Morichi teaches a cellular phone according to the present invention comprises a plurality of solar cell modules arranged on different surfaces of a casing, a plurality of electric power control parts connected to each of the plurality of solar cell modules, a mechanical form detection sensor as a state detection part for detecting a state of said cellular phone, and an electric power selection part.

    It is apparent now that numerous innovations for solar powered cell phones have been provided in the prior art that are adequate for various purposes. Furthermore, even though these innovations may be suitable for the specific individual purposes to which they address, accordingly, they would not be suitable for the purposes of the present invention as heretofore described.

    best, portable, solar, chargers, 2023, phones

    AN OBJECT of the present invention is to provide a solar cell phone that avoids the disadvantages of the prior art.

    ANOTHER OBJECT of the present invention is to provide a solar cell phone that is simple and inexpensive to manufacture.

    STILL ANOTHER OBJECT of the present invention is to provide a solar cell phone that is simple to use.

    BRIEFLY STATED, STILL YET ANOTHER OBJECT of the present invention is to provide a solar cell phone which comprises a housing having a keypad, a display screen, other electronic components and a rechargeable battery. A diode switch within the housing is electrically connected to the rechargeable battery. A plurality of solar panels are mounted to the housing and electrically connected to the diode switch. The diode switch will allow the solar panels to supply electrical power to the rechargeable battery. An auxiliary battery within the housing receives electrical power from the solar panels. The auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic

    The novel features which are considered characteristic of the present invention are set forth in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of the specific embodiments when read and understood in connection with the accompanying drawing.

    • 110 solar cell phone
    • 112 housing of solar cell phone 110
    • 114 keypad in housing 112
    • 116 display screen in housing 112
    • 118 rechargeable battery in housing 112
    • 120 diode switch in housing 112
    • 122 solar panel of solar cell phone 110
    • 124 auxiliary battery of solar cell phone 110
    • 126 front of housing 112
    • 128 back of housing 112
    • 130 side of housing 112
    • 132 thin solar cell in solar panel 122
    • 134 lead in solar panel 122

    As shown in FIGS. 1 and 3 the present invention is a solar cell phone 110 which comprises a housing 112 having a keypad 114, a display screen 116, other electronic components and a rechargeable battery 118. A diode switch 120 within the housing 112 is electrically connected to the rechargeable battery 118. A plurality of solar panels 122 are mounted to the housing 112 and electrically connected to the diode switch 120.

    As shown in FIG. 2 : each solar panel 122 comprises a series of thin solar cells 132 and a pair of leads 134, whereby one lead 134 is a negative conductor, while the other lead 134 is a positive conductor. Each lead 134 of the solar panel 122 can be comprised of a three watt size. Each lead 134 of the solar panel 112 can also be comprised of a four (04) watt size.

    The rechargeable battery 118 of the solar cell phone 110 is comprised of a 3.7-3.8 volt size. The auxiliary battery 124 of the solar cell phone 110 is comprised of a 3.7-3.8 volt size.

    As shown in FIG. 3 : the diode switch 120 will allow the solar panels 122 to supply electrical power to the rechargeable battery 118. An auxiliary battery 124 within the housing 112 receives electrical power from the solar panels 122. The auxiliary battery 124 will store the electrical power to recharge the rechargeable battery 118 when the diode switch 120 is in a non-operative position. The rechargeable battery 118 will continue to operate the keypad 114, the display screen 116 and the other electronic components within the housing 112. The solar panels 122 are mounted to the front 126, back 128 and sides 130 of the housing 112. The rechargeable battery 118 and battery 124 have about 3.7-3.8 volt size.

    The present invention allows an individual to charge the solar cell phone 110 with a plurality solar panels 122, thereby eliminating the current dependency on electricity. The solar cell phone 110 can be developed by using the same technology as solar-powered calculators. The solar cell phone 110 can be produced in many different styles and designs and through various providers. The exact specifications, materials used, and method of use of the solar cell phone 110 may vary upon manufacturing.

    It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the types described above.

    While the invention has been illustrated and described as embodiments of a solar cell phone, accordingly it is not limited to the details shown, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.

    Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute characteristics of the generic or specific aspects of this invention.

    Claims ( 7 )

    a) a housing having a keypad, a display screen, other electronic components and a rechargeable battery;

    c) a plurality of solar panels mounted to the housing and electrically connected to the diode switch, whereby the diode switch will allow the solar panels to supply electrical power to the rechargeable battery; and

    d) an auxiliary battery within the housing receives electrical power from the solar panels, whereby the auxiliary battery will store the electrical power to recharge the rechargeable battery when the diode switch is in a non-operative position, so that the rechargeable battery will continue to operate the keypad, the display screen and the other electronic components within the housing.

    The solar cell phone as recited in claim 1. wherein the solar panels are mounted to the front, back, and sides of the housing.

    b) a pair of leads, whereby one lead is a negative conductor, while the other lead is a positive conductor.

    The solar cell phone as recited in claim 3. wherein each lead of the solar panel is comprised of a three watt size.

    The solar cell phone as recited in claim 3. wherein each lead of the solar panel is comprised of a four watt size.

    The solar cell phone as recited in claim 1. wherein the rechargeable battery is comprised of a 3.7-3.8 volt size.

    The solar cell phone as recited in claim 1. wherein the auxiliary battery is comprised of a 3.7-3.8 volt size.

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    US13/475,779 US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    US201161521392P 2011-08-09 2011-08-09
    US13/475,779 US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    US13/475,779 Expired. Fee Related US9680189B2 ( en ) 2011-08-09 2012-05-18 Solar cell phone

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    US9398124B2 ( en ) 2014-12-04 2016-07-19 Octavio S. Portugal Cellular phone charging case assembly
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    US10256663B2 ( en ) 2017-02-06 2019-04-09 Richie Singh Solar charging electronic device case
    US10310326B2 ( en ) 2016-10-10 2019-06-04 Hyperion Technology, LLC Liquid crystal display using the photovoltaic behavior of LED backlights as source of electrical energy
    USD957383S1 ( en ) 2018-11-06 2022-07-12 Joshua Montevirgen Solar-powered cellular phone cover

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    USD974316S1 ( en ) 2020-05-05 2023-01-03 Michael Champion Solar-powered cell phone

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    US20110090626A1 ( en ) 2008-09-30 2011-04-21 Apple Inc. Cover for portable electronic device

    Cited By (12)

    Cited by examiner, † Cited by third party

    Publication number Priority date Publication date Assignee Title
    US20130084919A1 ( en ) 2011-10-04 2013-04-04 Glynntech, Inc. Solar powered mobile phone
    US9048927B2 ( en ) 2011-10-04 2015-06-02 Glynntech, Inc. Solar powered mobile phone
    US9398124B2 ( en ) 2014-12-04 2016-07-19 Octavio S. Portugal Cellular phone charging case assembly
    US9462634B1 ( en ) 2015-08-18 2016-10-04 Margarita Moore Mobile-cordless phone systems
    WO2017031244A1 ( en ) 2015-08-18 2017-02-23 Moore Margarita Mobile-cordless phone systems
    US20170141818A1 ( en ) 2015-11-13 2017-05-18 Kabushiki Kaisha Toshiba Power reception device, power transmission device, and wireless power transmission system
    US10027378B2 ( en ) 2015-11-13 2018-07-17 Kabushiki Kaisha Toshiba Power reception device, power transmission device, and wireless power transmission system
    US20170187233A1 ( en ) 2015-12-29 2017-06-29 Christopher Wilkinson Wireless battery recharger and application
    US9960635B2 ( en ) 2015-12-29 2018-05-01 Christopher Wilkinson Wireless battery recharger and application
    US10310326B2 ( en ) 2016-10-10 2019-06-04 Hyperion Technology, LLC Liquid crystal display using the photovoltaic behavior of LED backlights as source of electrical energy
    US10256663B2 ( en ) 2017-02-06 2019-04-09 Richie Singh Solar charging electronic device case
    USD957383S1 ( en ) 2018-11-06 2022-07-12 Joshua Montevirgen Solar-powered cellular phone cover

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    What’s the Best Solar Phone Charger in 2023?

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    Written by Christian Yonkers

    Christian Yonkers is a writer, photographer, filmmaker, and outdoor junkie obsessed with the intersectionality between people and planet. He partners with brands and organizations with social and environmental impact at their core, assisting them in telling stories and spreading verifiable information that change the world for the better. Christian aims to have a sizable impact on the world helping foster a sustainable relationship between humans and the planet. Learn About This Person

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    Find the best price from solar installers in your area.

    Solar phone chargers are a great way to keep your phone juiced on the go. But many solar phone chargers don’t stop there: Units with larger panels and higher-capacity batteries are capable of charging cameras, GPS units, tablets and even computers, too.

    Most solar-powered phone chargers incorporate integrated batteries and small solar panels with one or more ports for charging your gear. They’re hardy, portable and affordable. And best of all, you can feel good about the eco-friendly mobility they’ll give you on your next adventure.

    In this article, we’ll break down the top 5 best solar phone chargers available in 2023

    Best Solar Phone Chargers in 2023

    We narrowed down the best solar phone chargers on the market based on criteria including durability, power output, portability, design, functionality, extra features and cost.

    Each of the products listed below provided good value for the price and would be a great choice for powering up your iPhone or Android using solar energy.

    The Renogy E.POWER Portable Solar Charger boasts a powerful 10000mAh battery to keep your gear going longer. Its water-resistant exterior and built-in flashlight give you peace of mind in any conditions, anywhere.

    • IPX4-rated weather and dust sealing
    • Efficient solar panel
    • Multi-mode built-in flashlight
    • Carabiner
    • 2 USB outputs
    • Battery level indicator
    • Quality build
    • A bit heavy for backpacking
    • Solar panel only powerful enough for trickle charging battery
    • Long solar charging time
    • Not best-in-class battery capacity

    Why Buy: The Renogy E.POWER Portable Solar Charger is the perfect companion for off-grid, on-the-go applications where you need rugged and reliable power. With effective weather-sealing, dual USB charging ports and a carabiner, you’ll have enough juice to power your small electronics on a backcountry camping trip or wherever your adventures take you.

    Runner Up: FEELLE Portable Solar Power Bank

    The FEELLE Portable Solar Power Bank has a powerful 25000mAh battery powered by four solar panels, nearly the equivalent of a 5-watt wall charger. The panels fold neatly over the battery for compact storage, and the water-resistant cover gives you peace-of-mind when encountering adverse weather.

    • High-capacity solar battery
    • Multiple panels allow simultaneous device charging when in direct sunlight
    • Dual USB outputs
    • Weather-resistant cover
    • Built-in flashlight
    • Battery level indicator
    • Solar charge indicator
    • A bit heavy and bulky for backpacking
    • Large footprint when unfolded
    • Long solar charging time
    • Build quality lacking

    Why Buy: The FEELLE Portable Solar Power Bank is a great option for those needing more battery capacity with simultaneous solar charging. Like most solar panel chargers of this size, it takes a while to get a full charge from the panels and it’s a bit on the heavy side. But for the price and features, the FEELLE Portable Solar Power Bank is well-deserved as our pick for runner-up.

    Best Low-Profile Panel: Renogy E.FLEX 21 Portable Solar Panel

    The highly efficient Renogy E.FLEX 21 Portable Solar Panel provides best-in-class charging speeds. Three large solar panels provide an impressive 22% to 25% energy conversion rate and clock out at 21 watts. Two USB outputs allow charging to multiple batteries or devices at once. While not intended for strapping to a backpack for mobile charging, it’s light enough to pack in a backpack or camera bag or strap to a kayak or use as an RV solar panel.

    • than enough capacity to quickly charge phones and small electronic devices
    • Generous wattage
    • Foldable
    • Good build quality
    • iSolar Technology provides fast charging and prevents overheating
    • Water-resistant
    • Relatively fast charge rate
    • Large
    • A bit heavy
    • Large footprint
    • Batteries and charge controllers not included
    • A bit pricey

    Why Buy: If you need a foldable solar panel to charge your devices at basecamp, the Renogy E.FLEX 21 Portable Solar Panel is tough to beat. It’s the perfect portable solution for quickly charging devices, cameras, and even laptops in off-grid situations.

    Best Solar Charger for Hiking: Goal Zero Nomad 10 Foldable Solar Panel

    The Goal Zero Nomad 10 Foldable Solar Panel provides low-profile, intuitive solar charging. Featuring two solar panels with a combined 10W of power, it provides ample capacity to charge cell phones, GPS units, camera batteries and more. A built-in kickstand allows optimal positioning, and its efficient design makes it small enough to strap to a bag for charging on-the-go. An integrated USB port charges phones, external battery banks, and other small devices.

    • Built-in kickstand for multiple angles and optimal exposure
    • Low-profile
    • Easily straps to backpack or tent
    • Integrated USB ports
    • Foldable
    • Rugged and well-built
    • Water-resistant
    • Slower charging rate than other panels
    • Batteries and charge controllers not included
    • Expensive

    Why Buy: Goal Zero has established itself as a leader in portable solar solutions. While it’s not the largest portable solar panel out there, the Goal Zero Nomad 10 Foldable Solar Panel hits the sweet spot between portability, versatility and capacity. If you need relatively fast charging for small electronics on your next outdoor adventure, this is the panel for you.

    Best Charger Under : Blavor Solar Power Bank

    For a budget option, we’ve placed the Blavor 10000mAh Solar Power Bank as our top pick. The generous battery capacity is enough for multiple cell phone charges, and the solar panel offers trickle charging when the sun is shining. A useful dual LED flashlight, compass and Qi wireless charging make the Blavor 10000mAh Solar Power Bank an attractive solar phone charger.

    • Generous battery capacity
    • IPX4 rated weather and dust sealing
    • Built-in dual flashlights
    • Dual USB outputs
    • Battery level indicator
    • Compass strap
    • Qi wireless charging
    • Great customer service

    Why Buy: While not the fastest solar charger out there, the Blavor 10000mAh Solar Power Bank is a steady performer nonetheless. Whether charging from a wall or trickle charging with the solar panel, the Blavor 10000mAh Solar Power Bank is loaded with impressive features you might not expect at this price point.

    How Do Solar Phone Chargers Work?

    For those looking for a sun-powered adventure, the heart of a solar phone charger is the solar panel itself, which works exactly the same way as a larger rooftop panel does.

    Solar panels convert the energy of photons (light particles) into electricity, a process called the photovoltaic effect. When a photon hits a solar panel, its energy causes electrons to flow throughout the solar cells, producing an electric current to charge devices or batteries.

    All solar panels produce direct current (DC) energy, which can be used to charge small battery-powered devices like cell phones and computers. Solar panels for homes and businesses must be converted to alternating current (AC), which requires an inverter.

    Lack of inverters and small panel sizes make solar phone chargers a compact and efficient way to charge DC electronics.

    Types of Solar Phone Chargers

    Just like there are different types of solar panels for homes, there are different types of solar phone chargers.

    Standalone panels: These solar phone chargers consist of one or more panels with built-in charge ports (usually USB ports). They’re great if you need a large amount of energy for quick charging or powering larger devices. The downside to standalone panels is that they lack integrated batteries, so you can only charge your devices when the panels are in direct sunlight. They also tend to be on the large side. But if you need more power than a smaller charger can provide, standalone panels are the best option.

    Solar battery banks: Solar chargers with a built-in battery are handy for carrying a reliable, portable charge wherever you go. The most common variants include a small solar panel atop a battery, but some options include fold-out panels for better capacity and faster charging. Aside from some notable exceptions, most solar battery banks take days to fully charge via sunshine alone, and almost none of them will charge your cell phone and the internal battery simultaneously. If you prioritize a rechargeable battery with solar backup, solar battery banks are a good option.

    How Much Do Solar Phone Chargers Cost?

    Solar phone charger costs vary depending on type, capacity, quality and features. The best solar phone chargers balance quality, performance and price, ranging from 30 for basic solar battery bank chargers to 150 for standalone solar phone charger kits.

    Choosing the Best Solar Phone Charger for Your Needs and Budget

    Now that you know how solar panels work to charge your phone and some of the best solar phone charger models available, you may be wondering how to narrow down the right product for you. Here are some things to consider when making your purchase:

    Design and Size

    You’ll probably want to take your solar phone charger on the go, so think about the following:

    In addition, look for other features that might come in handy, such as:

    Keep in mind that the greater the number of features, the larger (and sometimes more expensive) the unit will be.

    Power Output

    How much power a unit can produce and store may be the most important factor to consider when buying a solar cell phone charger. A high-amperage battery will provide more charges for your devices but will take more solar input to charge. If you’re going to rely on the sun to provide all of your power, prioritize high-output solar panels capable of quickly charging your electronics. If you just need a high-capacity battery with the option for solar trickle charging, a smaller solar battery bank could be a good fit.

    Durability

    Because they’re portable, choose a durable solar-powered phone charger to stand up to the wear-and-tear of travelling and outdoor activity. The best solar phone chargers are rugged and dependable, featuring weather-sealing and robust construction.

    Portability

    All solar phone chargers are portable, at least in the technical sense. But there are degrees of portability depending on your needs. Ranging from somewhat heavy multi-panels requiring stationary placement to simple units you can strap to your pack, there’s a unit for everyone, from trail runners to off-grid nomads. Just remember that with greater portability often comes sacrifice in other features, especially panel output.

    Extra Features

    Many solar chargers for phones feature more than just charging, with integrated LED flashlights, backup batteries, charge indicators, carabiners, compass straps and more. While these can be nice, don’t let extra features distract from what really matters: Staying powered when you need it most.

    Cost

    Finally, there’s cost. While none of our top picks will break the bank, some are undoubtedly pricier than others. It’s best to save up for a costlier unit if you absolutely need its functions, but if you only need a battery with solar backup, there are plenty of budget-friendly options out there.

    FAQ’s:Solar Phone Charger

    Are solar chargers for phones any good?

    Solar phone chargers are great for powering devices in off-grid situations. They can be used over and over again without having to be plugged into an outlet to recharge like standard battery banks.

    How long does it take to charge a phone with a solar charger?

    The time it takes to charge a phone with a solar charger will depend on the output of the battery and the amperage of your phone’s battery. Some battery chargers can fully charge a phone in as little as 90 minutes, but others may take up to four hours.

    What are the best solar power chargers?

    We rated the Renogy E.POWER Portable Solar Charger and FEELLE Portable Solar Power Bank as our top two picks for the best solar power chargers. These models are rugged and dependable enough to charge your devices anywhere you go.

    How do I choose a solar cell phone charger?

    Key factors to consider when choosing a solar cell phone charger include design features like number of charge ports, size/weight, power output, durability, portability, extra features, and cost.

    Christian Yonkers is a writer, photographer, filmmaker, and outdoor junkie obsessed with the intersectionality between people and planet. He partners with brands and organizations with social and environmental impact at their core, assisting them in telling stories and spreading verifiable information that change the world for the better. Christian aims to have a sizable impact on the world helping foster a sustainable relationship between humans and the planet.

    Irma joined the EcoWatch team in August 2015. She holds a Master’s degree and Bachelor’s degree from the E.W. Scripps School of Journalism at Ohio University in Athens, Ohio. She is a member of Kappa Tau Alpha – a national honor society of journalism.

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