The Best Portable Solar Chargers of 2023
Adam has been writing about mobile technology since 2011. He is the former host of the Android Authority podcast, and his work has appeared in numerous publications.
Rich Scherr is a seasoned technology and financial journalist who spent nearly two decades as the editor of Potomac and Bay Area Tech Wire.
The best solar chargers use the sun’s abundant power to keep your devices and batteries topped off. Solar chargers aren’t just for nature enthusiasts. Anyone who spends time away from an electrical outlet will find them helpful.
We recommend the X-DRAGON SunPower Solar Panel Charger for its 40W power output and high-efficiency cells. This charger doesn’t include a power bank to store all that juice, but if you are away from power and need to charge your phone or even your laptop, this is a great option. Opening the eight solar panels will give you plenty of power as long as there’s daylight.
Best Overall
X-DRAGON 40W Portable Foldable Solar Panel Charger
Our best overall charger can produce up to 40W of juice from its eight efficient panels. It opens wide to collect a lot of sunlight with eight high-efficiency panels, but it folds down small enough to fit into your backpack. There’s no water-resistance rating here, so be careful not to get caught in the rain, and no battery is included. But if you have large items that need a charge, the X-DRAGON SunPower Solar Panel Charger is a great choice.
You can plug in your phone and tablet, but you can also scale that up to your laptop with the five included different-sized barrel chargers and connection for your car battery. This is a great item to keep in your emergency car kit or your backpack for camping. The 18-month warranty will give you peace of mind too.
Number of Ports: 2 | Power Output: 2.8A max USB, 18V DC | Types of Ports: USB-A, DC | Number of Cells: 8 | Efficiency: 22 to 25% | Battery Capacity: N/A
Most Portable
BigBlue 28W Solar Charger
The Big Blue Solar Charger is a highly-portable solar charging solution that folds to a tiny 11.1 x 6.3 x 1.3 inches when closed. It’s long but narrow and thin, easily fitting into most backpacks. Included carabiners allow you to open and strap it to your bag outdoors.
There is no built-in battery, but the three USB-A ports allow you to charge any phone or tablet quickly. The panels are waterproof, which our reviewer tested by submerging the cells in a bathtub.
Our reviewer also noted that the advertised 28W output is misleading. There are four 7W panels which add up to 28 Watts. Unfortunately, the panels could output only around 17W maximum during our testing.
There’s a pouch for holding cables or devices while charging, which is a nice bonus. Given its water resistance, we’d recommend this for hikers and campers, even in inclement weather. Of course, cloudy days will mean less charging, but at least you know your panels can stand up to it.
Number of Ports: 3 | Power Output: 5V / 4.8A | Types of Ports: USB-A | Number of Cells: 4 | Efficiency: Not listed | Battery Capacity: N/A
What to Look for in a Portable Solar Charger
Water Resistance
Solar power works best outside, so looking for water resistance in case you unexpectedly get caught in the rain or snow is a good idea.
Built-in Battery
Solar panels generate power, and that power has to go somewhere. If you have a solar panel and nothing plugged in, the panels will not generate energy, which is fine, but a battery would allow you to generate power and store it until you need it.
Power Output
Keep in mind the kinds of devices you’ll be using. Most solar panels can do the job if all you need to charge is a phone or tablet. If you need to power something larger, such as a laptop or car, you’ll need a powerful setup to get the job done.
That depends mostly on the cells’ efficiency and the amount of sunlight you’re getting. Solar panels are getting more and more efficient these days, which means they’re capable of generating a lot of power. On a bright, sunny day, it’s not unreasonable to think you can generate enough power for a phone and tablet or even bigger items.
If it’s big enough, a solar panel can deliver a charge to your car’s battery to allow it to start. A jump start technically means you’re drawing from a power source to start your car right away. The solar option is more of a car battery charger, meaning you’ll need to wait some time for your car’s battery to charge before you can turn the key. But yes, it is possible.
Solar panels should never be left in a window or in a car to charge. The glass from the window can FOCUS with light on the panels and cause them to overheat. Solar panels are meant to be outside and under the sun, or put away.
Solar charging phone cover
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4XEM 20,000 maH Mobile Solar Power Bank and Charger (Black)
Containing a 20000mAh (milliamp hour) lithium-polymer power bank, the 4XEM Solar Charger charges all your Apple, Samsung, LG, Huawei and other mobile devices via solar energy or its USB ports. Your 20000mAh solar charger comes with 6 mobile device connectors, a charging cable and built-in LED flashlight. The 4XEM Solar Charger is compatible with most Nokia, Samsung, LG, Palm, Blackberry, Apple iPhone, iPod, iPad, Motorola, Sony, Bluetooth, GPS, carious digital cameras, PSP, various eBooks, tablets, and other devices.
Problem it solves: Use the sun’s rays to charge your mobile devices when a wall outlet or USB power source are not available. Great for travelling, perfect for the outdoors!
When charging or transferring data to and from any mobile device, always trust 4XEM Connectivity.
Check out Professional Photographer Chris Atkins’ Review
Features:
- 20000mAh battery capacity
- Transfers sun energy into electrical energy
- 3- 18-Watt fast charging ports as well as wireless charging
- 3- Input ports: Solar, USB Type-C, and Micro USB
- Waterproof, Dustproof, Shockproof
- Compact size ideal for travelling, backpacking, or camping
- Comes with: Built-in LED flashlight, Hook (for outdoors), Lanyard
- Colour decal: Black
Specifications:
| Warranty Information | Warranty | 1 year |
| Connector(s) | ||
| Physical Characteristics | ||
| Power | ||
| Environmental | ||
| Packaging Information | ||
| What’s in the Box | ||
| Notes | 4XEM Power Banks utilize rechargeable Lithium-ion batteries, and the value of rated capacities are affected by various factors including but not limited to ambient temperature, testing conditions and methods. The rated capacities of 4XEM Power Banks are all tested and approved by a third party test labs under specified conditions. (The available capacity of rechargeable batteries decreases gradually with time and the number of uses according to battery characteristics.) Output current will vary depending on the input charge properties of the device being charged. | |
| Product appearance and specifications are subject to change without notice. | ||
| Weights and measurements are approximate. |
4XEM 20,000 maH Mobile Solar Power Bank and Charger (Black)
Containing a 20000mAh (milliamp hour) lithium-polymer power bank, the 4XEM Solar Charger charges all your Apple, Samsung, LG, Huawei and other mobile devices via solar energy or its USB ports. Your 20000mAh solar charger comes with 6 mobile device connectors, a charging cable and built-in LED flashlight. The 4XEM Solar Charger is compatible with most Nokia, Samsung, LG, Palm, Blackberry, Apple iPhone, iPod, iPad, Motorola, Sony, Bluetooth, GPS, carious digital cameras, PSP, various eBooks, tablets, and other devices.
Problem it solves: Use the sun’s rays to charge your mobile devices when a wall outlet or USB power source are not available. Great for travelling, perfect for the outdoors!
When charging or transferring data to and from any mobile device, always trust 4XEM Connectivity.
Check out Professional Photographer Chris Atkins’ Review
Features:
- 20000mAh battery capacity
- Transfers sun energy into electrical energy
- 3- 18-Watt fast charging ports as well as wireless charging
- 3- Input ports: Solar, USB Type-C, and Micro USB
- Waterproof, Dustproof, Shockproof
- Compact size ideal for travelling, backpacking, or camping
- Comes with: Built-in LED flashlight, Hook (for outdoors), Lanyard
- Colour decal: Black
Specifications:
| Warranty Information | Warranty | 1 year |
| Connector(s) | ||
| Physical Characteristics | ||
| Power | ||
| Environmental | ||
| Packaging Information | ||
| What’s in the Box | ||
| Notes | 4XEM Power Banks utilize rechargeable Lithium-ion batteries, and the value of rated capacities are affected by various factors including but not limited to ambient temperature, testing conditions and methods. The rated capacities of 4XEM Power Banks are all tested and approved by a third party test labs under specified conditions. (The available capacity of rechargeable batteries decreases gradually with time and the number of uses according to battery characteristics.) Output current will vary depending on the input charge properties of the device being charged. | |
| Product appearance and specifications are subject to change without notice. | ||
| Weights and measurements are approximate. |
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.
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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.
Solar Phone Charger: The Best Picks and How to Choose
Suppose you’re in the middle of a scenic hike, and your phone runs out of battery. Now, you can’t rely on GPS or access your trail map. That’s a challenging moment for you, and finding wall outlets or other means to power smartphones can be even more difficult. That’s where a solar phone charger comes in handy.
You don’t have to worry about enjoying outdoor adventures or handling emergency situations without a smartphone because Jackery solar generators make powering devices easy. The solar generator is source of renewable energy that makes powering devices easy.
Cell phones consume around 2-6 watts of power. The portable and cost-effective nature of solar power chargers allows you to charge mobile phones, laptops, etc., to make your trip memorable. A small solar power generator of 160 watts would be sufficient to power up small devices like cell phones, whereas you might need a large generator to charge devices like coffee makers, etc., during your trips.
This article will reveal everything from different types of portable solar chargers available on the market and what size you should purchase to ensure you always keep your phone charged.
What Is A Solar Phone Charger
Admit it or not, smartphones are the lifelines, especially when you are away from your house. Whether you’re enjoying a breathing camping view or facing a long-term power outage home, having your gear charged and working is essential.
A solar phone charger does the same for you when no electricity is available. It is one of the best methods to use clean and renewable energy and power your devices. However, checking the capacity of solar panels and the device power requirement is essential before finalizing any solar battery charger for a phone.
Solar Charger For Phone
Solar charger for phones uses solar panels to convert sun rays into electricity and store it in the battery. They are portable charging methods that allow you to charge smartphones anywhere and anytime. Whether planning camping, hiking, or other outdoor activities, you can take your solar charger to power devices.
The solar phone charger is an economical, environment-friendly, portable, and sustainable energy source available to charge small devices. It works by absorbing sunlight with the help of a solar panel or photovoltaic cells. Solar energy is stored in a lithium-ion battery, so you can power mobile phones at night or during cloudy days.
Types Of Solar Phone Chargers
Many types of solar-powered phone chargers with different capacities allow you to keep your gear charged during an emergency, camping trip, hiking, etc. Some of the most popular and common types of solar phone charges include:
Portable solar charger generator – allows you to charge your cell phones anytime. The solar generator’s lightweight nature and wireless charging option make it suitable for beach trips. Jackery offers multiple solar power generators that are portable and waterproof. In addition, numerous USB ports available will help you to charge devices at once.
Solar panels – enable you to charge cell phones directly with the sun. Instead of transferring electricity to the battery, the solar panels charge the smartphones with direct sunlight. Jackery 100-watt solar panel are an alternative choice to power bank for charging phones or other small appliances. The robust nature of solar panels is a renewable and clean energy source for everyone.
Heavy-duty solar panels – these large solar panels can charge everything from phones to laptops to mini-fridges. As these panels come with a charge controller, they transfer their charge to the power bank to charge all the devices.
Below are the best portable solar charger for phones available on the market.
Built-in Battery
Output Ports
BigBlue 28W Solar Charger
Hiluckey 25,000mAh Power Bank
Battery Capacity Of iPhone, Samsung, And
Solar chargers are built for outdoor usage, and they are powered with the help of sunlight. While choosing the best solar charger for your needs, analyzing the solar panel size, charging speed, battery size, and the number of ports is essential. Watt and watt-hour should be considered to narrow your research and purchase the best solar panels.
What Are Watt And Watt Hours?
A watt is a power unit that measures the energy transfer rate. In electrical terms, the watt is the rate of electrical work done by a device during appliance powering.
The simple formula of watt is equivalent to volt-ampere. Here is how to calculate it:
Power is the energy rate at which energy is consumed or generated; hence, it is measured in watts. Meanwhile, watt-hour is the rate at which one-watt power is consumed in one hour. Here is the formula to calculate the watt-hours of any device.
Watt-Hours = Total Number Of Watts Total Number Of Hours
Battery Capacity of Phones
Generally, a solar phone charger that can supply 10 watts is sufficient to charge a smartphone for one day. Many solar power panels have robust battery protection systems, so you can power all your devices safely.
For instance, if you know the battery capacity (mAh) and volt (V), you can easily calculate the watt-hour.
Formula is (mAh) (V) /1000 = Wh.
Suppose the battery capacity of the solar power charger is 300 mAh, and the volt is 5V. Here is how to measure watt-hours.
Watt-hour = 300 mAh 5V / 1000 = 1.5 Wh.
Here is the breakdown of the estimated solar power needed daily to charge different types of smartphones.
Phone Types
Battery (Watt-hours)
How Many Charges Daily
Estimated Solar Power Needed Daily (Watt-hours)
iPhone 14 Plus/ iPhone 14 Pro Max
Samsung Galaxy Note 10 Plus
Samsung Galaxy S21 Ultra 5G
Most solar generators can charge your phone several times. That said, you don’t have to worry about recharging and charging your solar power.
Portable Solar Charger For Phone
If you are looking to choose the best solar panel charger for a cell phone, you can never go wrong with Jackery solar generator. It combines a portable power station and SolarSaga panels that capture the sun’s rays and convert them into electricity.
Compared to traditional generators, solar panel generators are portable. Not only does it allow you to charge cell phones, but it can also power other small electrical appliances depending on the power they consume.
Jackery solar generators are available in different sizes. This solar generator is suitable for campers, emergency backups, and RVs. The best part about all the solar chargers for a phone is their foldable design and less weight. It makes it easy to carry wherever you go.
Customer Reviews
I bought this for dry camping in my RV. I wanted an easy way to recharge my multiple Ipads, iPhones, and computers. I just returned from an 18-day trip, and the Jackery 500 with the 100-watt solar panel performed flawlessly. Recharging it was the easiest system I have ever worked with. In sunny AZ, the system went from 83% to 100% in 2 hours. If it was cloudy, I plugged into my 12-volt plug while driving and generally went from the low 80s to 100% within a 3-hour drive. I have not used the 120-volt charger yet as it was not needed. In total, I recharged 2 Ipads, 2 phones, 1 computer, and 1 jet pack overnight. The battery would be in the low 80% by morning, sometimes 75% by evening back to 100%. I highly recommend this system. Addendum photos first photo 11:48 am, 2nd 12:42 pm, 3rd 1:48 pm, 4th 3:02 pm, 5th 3:55 precharge in Tucson, AZ. May 23, 2021 Went from 100% to 81% after charging 2 Iphones, 2 Ipads, and 1 jetpack. 1 iPad in use for a couple of hours while being charged-Susan
Jackery 500 gave me a lot of power for 7 days of camping. It powered my Alpicool ref, USB lights, cell phone, etc. The lowest power I had overnight was 87% until I could charge my solar panel the next day. I highly recommend this. I will use my CPAP on my next trip and trust it will give me power all night. I used Goal Zero before. I was not impressed, and Jackery’s price is more reasonable. Buying expensive things like goal zero does not prove great performance but is overrated as a waste of money. Go for Jackery. It is also lightweight.Maria
As you can see, Jackery products are loved by the customers. They are durable, cost-efficient, and powerful solar generators that ensure you never run out of power. Here are the top Jackery power stations you can purchase to charge your cell phone.
Portable Power Station Capacity
Phone Capacity
Supported Charges
(When the portable power station is fully charged)
Jackery SolarSaga 100W Solar Panel (This solar panel has a USB output and can charge the phone under the sun directly)
Depends on the weather condition
Jackery Solar Generator 240 (Explorer 240 SolarSaga 100W)
- USB-A Output: 5V, 2.4A
- USB-C Output: 5V, 3A
- AC Output: 110V, 60Hz, 200W (400W Surge Peak)
- Car Output: 12V, 10A
- DC Input: 12V. 30V (65W Max)
Jackery Solar Generator 300 (Explorer 300 SolarSaga 100W)
- USB-A Output: 5V, 2.4A
- USB-C PD Output: 5V, 9V, 15V, 20V, 3A
- DC Input: 12V. 30V (90W Max)
- Quick Charge 3.0 Output: 5V, 2.4A
- AC Output: 110V, 60Hz, 300W (500W Surge)
Jackery Solar Generator 500 (Explorer 500 SolarSaga 100W)
- USB-A Output: 5V, 2.4A
- Car Port: 12V, 10V
- DC Output: 12V, 7A
- AC Output: 110VAC, 60Hz, 500W (1000W Surge)
- DC Input: 12V. 30V (100W Max)
Even if the portable power station is out of capacity, you don’t have to worry about charging your appliances. The pass-through charging capability lets you recharge the device and solar generator at the same time. In addition, the input and output ports on the portable solar generator protect your device from overcharging.
What Size Solar Charger For a Phone Do I Need?
Solar cell phone chargers come in different sizes, shapes, and types. The simple rule to purchasing a solar panel is understanding its compatibility with your device.
Calculate the size of the solar charger for a phone with this formula:
Working time = Watt-hour of the solar power station 0.85 / operating wattage of your device.
For instance, if we assume that the cell phone consumes 10 watts and the watt-hour of the solar power station is 167Wh, the working time will be 167 Wh 0.85 / 10 = 14.2 hours.
Purchasing a solar power station with a 167 Wh battery capacity can charge a phone at 13 Wh capacity 11 times. You can calculate the number of charges a solar panel supports with a simple formula:
The number of charges supported = 0.85 Power station capacity/phone capacity.
Depending on the requirements and phone capacity, you can determine the size of solar panels you’ll need.
FAQs About Solar Phone Chargers
Solar phone chargers come in many variants with different designs, functions, sizes, etc. Checking on the tech specs and understanding the power requirements are the two most important aspects you’ll need to consider before choosing the best solar power generator. Here are a few common questions that people often ask before buying a solar power generator.
What is the best solar phone charger?
Jackery is the best solar phone charger amongst all the other power generators available on the market. The combination of the portable power station and SolarSaga solar panels charges all your small appliances, including cell phones, multiple times after full charge. Some unique features that make Jackery military-grade solar phone charger the best choice include:
- Lightweight and compact in nature that makes it easy to carry around wherever you go.
- As it receives power through the sun and no other forms of fuel are required, it is clean, quiet, and renewable.
- Multifunctional outputs like USB-A, USB-C, Car Port, etc., ensure that you can charge multiple devices simultaneously and save time for charging.
- High conversion efficiency solar generator ensures that you use maximum sun’s energy and store it to power devices.
The input and output USB ports available on the solar phone charger make it easy to use. You can power your cell phone by plugging the USB cable from the charger into the smartphone. Jackery solar generators have a device protection system, so you don’t have to stress about overcharging the appliance. Another feature of the solar phone charger is another USB input port that allows you to recharge the solar generator even if you are powering the devices.
Where to buy a solar phone charger?
You can purchase the best solar phone charger from the solar power generator collection of Jackery. They have a wide range of solar generators that last decades and power all your devices without hassle.
How does a solar phone charger work?
As the name suggests, the solar-powered phone charger absorbs and transfers sunlight. Here’s how it works in simple steps: photons carry the sun’s energy to create an electric field. This sunlight powers the photovoltaic cells or solar panels, transferring the power to cell phones. Most solar panels come with a battery to store the power. This means you can charge your phone even when there is dark or no solar energy available.
Conclusion
So, if you have ever put off your camping and hiking idea thinking about how you’ll charge your cell phone, consider purchasing a solar phone charger. You can use the solar phone charger to power all the small appliances that consume less power, including smartphones, and stay connected.
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What’s the Best Solar Phone Charger in 2023?
Each product and or company featured here has been independently selected by the writer. You can learn more about our review methodology here. If you make a purchase using the links included, we may earn commission.
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
Reviewed by Irma Omerhodzic
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. Learn About This Person
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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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