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Inergy Apex K2 Solar Generator – Successor to the Kodiak. Inergy solar panels

Inergy Apex K2 Solar Generator – Successor to the Kodiak. Inergy solar panels

    Inergy FLEX 1500 Portable Power Station Review – Everything You Need to Know

    We are big advocates of solar generators. Whether you are new to solar and you are just looking for a small-scale, beginner-friendly piece of solar equipment, or you are looking to build a large-scale solar power system for your entire home, it is possible to find a solar generator that can perfectly satisfy your exact needs.

    This is because solar generators are true all-in-one solar power stations. They contain a deep cycle solar battery, a power inverter, and a charge controller. This means you can simply connect your solar generator to one or more solar panels and you can immediately start storing and using solar electricity.

    How Can We Help?

    While you can certainly find a solar generator that will fit your specific budget and power needs by shopping around, there are now more options available than ever before, which can make it difficult to know where to start. Luckily, we have done the hard work for you by testing and reviewing just about every solar generator that is on the market today.

    To help you understand your options, we are going to take an in-depth look at Inergy’s highly anticipated FLEX 1500 Portable Power Station. We will break down the specifications and help you determine whether or not this powerful little unit is the right solar generator for you. We will also take a look at the Inergy brand, which will give you more background on their reputation within the solar industry.

    From there, we will offer some comparable alternatives, so you are aware of multiple options!

    The Inergy Brand


    From the very beginning, Inergy has had a simple goal – to deliver affordable solar power to people all around the world. While this may sound like a fairly cliché slogan, there is serious authenticity and intent behind it. This is because the founder and current CEO spent his formative years in a Thai refugee camp with very little access to electricity. This experience really impressed on him the importance of power for modern-day life.

    Early Success:

    With this motivation, Inergy was launched. Shortly after it was founded, Inergy became one of the first specialized solar companies to enter the solar generator market. While their most recent models, like the FLEX 1500, are significantly more advanced than Inergy’s first few releases, like the Inergy Kodiak and Apex Power Stations, these early solar generators made a significant impact on the entire solar industry. This is because they focused on portability, quality, and affordability.

    Current Reputation for Innovation Quality:

    Today, Inergy continues to enjoy a well-earned reputation for offering high-quality solar generators at affordable prices. They also continue to be one of the most innovative brands in the industry, which explains why they have won so many awards related to clean tech development.

    While we will certainly spend some time dissecting the FLEX 1500, it is safe to say that Inergy is considered to be one of the more trustworthy brands out there. With that being said, Inergy has been known to struggle with supply chain issues, which, unfortunately, has led to some of their launches being delayed and their products being left on back-order for months at a time.

    Review of the FLEX 1500 Portable Power Station

    Now that you know a little bit more about the Inergy brand, we can take a look at the FLEX 1500 to determine if it is worthy of the hype it has created.

    What is the Inergy FLEX 1500?

    Inergy designed the Flex 1500 Power Station to act as a highly versatile, modular solar generator. Inergy also placed a strong importance on ensuring that the FLEX 1500 would be incredibly portable, which is why it features a top-mounted carrying handle and only weighs 29 lbs.

    Like other solar generators, the FLEX 1500 contains a rechargeable, deep cycle solar battery, a built-in power inverter, an integrated and efficient charge controller, and a variety of output and input ports.

    Essentially, it was designed so users could access reliable, renewable power, no matter where they were. While the lightweight and compact design certainly helps in this regard, what really sets the FLEX 1500 apart is its modular design, which means the main console can be detached from the battery.

    The FLEX 1500 Power Console Primary Components:

    One of the first things we noticed about the FLEX 1500 is its robust 1,500W (3,000W surge) power inverter, which is what gives the FLEX 1500 its name. This efficient and powerful pure sine wave inverter ensures that the FLEX 1500 is compatible with a wide range of 110-120VAC and 12V electronic devices and appliances.

    For such a compact and lightweight solar generator, a 1,500W power inverter is fairly impressive. Many of the solar generators we see that are under 50 lbs will only feature a 1,000W inverter. In simple words, a more powerful inverter means that you can power more demanding electronics without having to worry that the FLEX 1500 will be underpowered.

    With that being said, those that are looking to run electronic appliances with a higher wattage and voltage rating, like a washing machine, full-sized refrigerator, or convection oven, may need to opt for a more powerful solar generator.

    The FLEX 1500’s main console also contains an efficient MPPT charge controller that offers a 90V solar input rating. The addition of an efficient charge controller means that the FLEX 1500 will store more of the solar electricity your solar panels are able to generate. It also means that the 1500’s internal battery will charge much faster. In fact, with the right number of solar panels, you could potentially charge the internal battery in as little as 3.5 hours with solar power alone!

    The FLEX 1500’s Battery Specifications:

    Out of the box, the FLEX 1500 features a 1,000Wh lithium-ion battery. The battery contains high-quality Samsung cells, which is impressive for a solar generator at this price point. As mentioned above, the battery module is actually detachable from the main console, which can be helpful for storage purposes and any time you need to transport your FLEX 1500. For example, if you were hiking to a remote, off-grid camping location, you could detach the battery and console and divide the weight amongst two people.

    While the 1,000Wh battery does not really get us too excited, one of the most appealing features of the FLEX 1500 is the fact that it is expandable! This means you can add as many FLEX batteries as you need. In fact, the FLEX 1500 can potentially support up to 96 expansion batteries, although this number wouldn’t be very practical.

    While few people are going to take things that far, the fact you could easily double or triple your solar generator’s storage capacity by purchasing one or two expansion batteries is hugely appealing.

    The Design and Features:

    The modular design is one of the most unique things about the FLEX 1500, and it also happens to be one of its most appealing design features. Whether you want to expand or replace the battery, the simple latched design makes it incredibly easy to make upgrades and repairs.

    We also like that it features a clear LCD display screen, which offers input and output information at the touch of a button. The battery also features a second display screen, which makes it easy to check how much power you have left.

    In terms of output ports, the FLEX 1500 features the following:

    • 2x 60W USB-C ports with PD and QC 3.0
    • 2x USB-A ports with QC 2.0
    • 2x 5.5mm x 2.5mm DC outputs (Compatible with Inergy Basecamp LED lights and other branded accessories)
    • 2x 15A 13.8V cigarette-style DC ports
    • 6x 110-120V AC wall-style grounded outlets

    You can also easily toggle between DC and AC output power with the touch of a button. Another feature we like is the option to add the Inergy FLEX MPPT Super Charger, which triples the solar input rating.

    For added convenience, the battery can be charged in four unique ways. Aside from solar charging the battery using your choice of solar panels, you can also DC charge the battery with a car charger, or charge the battery with AC power using the included wall adapter. As a fourth option, you can dual-charge with AC power and solar power, which means you can plug the FLEX 1500 into a wall outlet and a solar panel simultaneously for an even faster charging speed.

    Our Overall Impression of the FLEX 1500

    The Inergy FLEX 1500 Power Station is certainly an impressive solar generator, especially when you consider its relatively inexpensive price and lightweight design. While there are plenty of solar generators out there that offer more impressive specifications, the FLEX 1500 is very affordable and offers some really unique features.

    We really like the modular design and think it could be a great option for outdoor enthusiasts, or anyone else that values portability. The ability to easily upgrade the storage capacity by adding expansion batteries is also really useful.

    While we really like what we see from the FLEX 1500 and would feel comfortable recommending it to our readers, there is a catch. Unfortunately, Ingergy’s ongoing supply issues are becoming a serious concern. Put simply, few people are actually able to order a FLEX 1500. Even if you are able to place an order, there is no guarantee when you will actually receive it.

    On top of that, it does not pack a powerful enough inverter for some of the larger appliances, which means it is not exactly the most practical option for anyone interested in emergency preparedness. We would really prefer if they offered an option to upgrade the inverter to one with a higher voltage rating, so it could be used to power 240V appliances.

    Unfortunately, this combination of issues is a real problem for consumers. However, if Inergy can ever address their supply issues and possibly add the option to upgrade the inverter to one with a higher voltage rating, we would happily consider it to be a serious option.

    Inergy FLEX 1500 Alternatives

    Given that the FLEX 1500 has a few faults and Inergy’s continued struggles to keep up with demand, we are going to offer some solar generator alternatives that we feel could be a superior option for certain consumers:

    Inergy Apex K2 Solar Generator – Successor to the Kodiak

    As solar and battery industries continue to improve daily with new technology, off-grid power capabilities are becoming easier to come across.

    Combining solar technology with high-powered batteries is the foundation of portable solar generators, and this way of generating power is becoming more common – even competing with portable gas generators.

    Inergy is a company that harnesses the power of solar and battery technology to create lightweight solar generators for several off-grid power needs.

    Their second solar generator release is called the Apex, which we’ll be reviewing today.

    The Inergy Apex is an 1,100Wh portable power station weighing 25 lbs in total. It features an MPPT charge controller, six AC outlets, and several 12V DC outlets. With 500W of maximum solar input, the Apex can recharge in about three hours.

    This is the front view of the Inergy Apex. It has an RV outlet, six 120V AC ports, and multiple USB and 12V DC output options.

    Featured in this article are various features, dimensions, and power statistics of the Apex.

    I’ll also be comparing it with some of its competition, the Yeti 1000, Yeti 1400 and Yeti 3000 solar generators.

    Please note that the Apex has been discontinued from Inergy. Some models may still be available for purchase from other vendors. Inergy has since created the Flex solar generator as the Apex’s successor.

    I’ll be comparing the Apex and Flex later on in this review.

    Inergy Kodiak (predecessor to the Apex)

    The Apex generator has the exact same dimensions on the outside as Inergy’s first solar generator, the Kodiak, at 14″ W x 7″ H x 8″ D.

    This is slightly heavier than the Kodiak by five pounds, mainly due to the newly-added MPPT controller. on that later.

    As the YouTuber, Canadian Prepper put it, “It’s like the difference between the iPhone 8 and iPhone 9.”

    This means that there are many similarities between the few years’ old Kodiak and Apex, however, there are some major improvements in the Apex, which makes it more usable for RV users, boaters, campers, and many others.

    Besides the generator being the exact same dimensions, it also has the exact same battery in it as the Inergy Kodiak (1.1 kWh), which is still very impressive, especially for the weight of the generator.

    Also, the Apex has the same look and very similar inputs and outputs from the previous model.

    The Apex has a Multitude of Features

    Inergy listened to their customer base and helped solve a big problem, which happened when people were charging their generator with solar panels and couldn’t figure out the exact amount of Watts that were coming into the power station to charge it.

    Charging Power Options in the Apex

    You can charge the generator from solar panels, your car, and your wall outlet in a pretty fast manner compared to the competition.

    Solar charging is a major asset to this generator, as it will charge in three hours with 500W of solar panels in good sunlight.

    This is amazing in the solar generator world and Inergy has really set the bar high with their charging times.

    As for car charging, the Apex will be able to charge up in about 4.5 hours at 240 watts. Wall charging with 110 watts will take eight hours.

    Apex Battery Performance

    The Inergy Apex’s battery performance is very similar to its predecessor, the Kodiak.

    The battery is the same size as the Inergy Kodiak, at 1,100Wh (1.1kWh).

    Also, the battery no longer needs “resets” as opposed to Kodiak, where if you had a low battery and tried to use a power tool or appliance with a lot of surge power, it would need to be reset by doing a strange sequence with plugs.

    Now, the Apex automatically shuts down if you surge the power when there’s a low battery in order to protect the battery and give it longevity.

    The battery will last up to 2,000 charge cycles, which, when you do the math, is actually saving you money compared to most other generators out there that do not have as many charge cycles.

    Inergy Apex Overall Stats

    PRODUCT SPECSPOWER SPECSWHAT CAN IT POWER?Charging Temperatures: 32°F to 104°FInternal Battery: 1,100 Watt hours (90 amp hours, 12.6 volts), Lithium NMCSmartphones (5-7 watts): 100 hoursDischarging Temperatures:20°F to 115°FBattery Life Expectancy: Up to 2,000 Cycles or 10 Years, 4 times longer life compared to any competitorTablets (25-40 watts): 40 hoursDimensions: 14″ W x 7″ H x 8″ DAC Inverter: 1,500 Watt pure sine wave, 3,000 Watt starting surgeLaptops (50 watts): 20 hoursWeight: 25 lbsCharging: 500 Watts max input, 3 hour recharge timeElectric Blanket (Queen Size, 75 watts): 14 hoursWarranty: 1-YearBattery Expansion: Yes. Apex accepts Inergy’s external Lithium-Ion (coming early 2020), 12V lead acid or AGM deep-cycle battery50″ LED LCD TV (65 watts) : 16 hoursShoulder Carrying StrapMPPT Charge Controller: Allows for faster and more efficient chargingRefrigerator (18 cu ft., 20% duty): 24 hoursStandard Wall Charger IncludedUSB-C Charge PortsChest Freezer (9 cu ft., 15% duty): 50 hoursUSB Qual Comm 3.0 Charge PortsSump Pump (1/3 HP): 2.5 hours3-Position Power Switch: Allows user to charge devices via the USB, USB-C, and 12V output ports without having to turn on the inverterBasecamp LED Light (6 watts) : 183 hoursEC8 Input Plug: Creates an extremely user-friendly, plug and play interfaceCompatible with EC8-to-MC4 AdapterNOT Compatible with MC4-to-Neutrik Adapter

    Inergy Apex External Batteries

    An impressive feature in this generator is the ability to hook up external lithium-ion batteries to the Apex.

    You can also use the standard 12.6 deep-cycle lead-acid/AGM batteries as well with the connections given on the outside of the generator.

    Hooking up an external battery to the Apex will let you have more power (obviously) but will also give the Apex the ability to charge and discharge power from the external battery.

    The lithium-ion external batteries will be released by Inergy very soon, and are also the only lithium-ion batteries allowed for use with the Apex under the warranty, which is a one-year policy.

    Some new features have been added to the Inergy Apex, including an MPPT controller.

    This will increase the charging efficiency and decrease charging times from solar panels – as compared to one without an MPPT (the Inergy Kodiak).

    Pros Cons of the Apex Solar Generator


    • MPPT controller – Improved efficiency
    • Massive power output (1,100Wh) and surge (3,000W)
    • The most power per pound compared to other portable solar generators
    • Lithium-ion external battery connections


    • Five pounds heavier than the Kodiak (25 as opposed to 20)
    • EC8 plugs instead of an MC4 adapter are used to connect the solar panels to the Apex

    EC8 plugs are not waterproof or UV resistant.

    Inergy made this move because people were burning out their Kodiak generators with too many solar panels attached to the generator.

    Now, these plugs are used to prevent that from happening. There are several more pros and cons to the Apex, but the main ones are listed here.

    Inergy Apex vs Flex

    Between the Inergy Apex and Flex solar generators, the better of the two is the Flex. This is due to the Flex’s scaleable battery capacity and solar input.

    Up to 96 Flex batteries can be connected to one Flex power module. With one Flex MPPT Supercharger, the maximum solar charge input is 1,200W.

    Battery Capacity – Apex vs Flex

    The Inergy Apex has a battery capacity of 1,100Wh.

    This is a sizable amount of stored power as it can power your 50″ LCD television for 16 hours. You can power a 19 cubic foot refrigerator and a nine cubic foot chest freezer with this power station for 33 and 50 hours, respectively.

    Apart from these larger appliances, small gadgets like phones, tablets, and camp lamps will get 100, 40, and 183 hours of power, respectively. Without a doubt, this power station has impressive battery capabilities.

    On the other hand, the Inergy Flex power station has a 1,069Wh capacity.

    Naturally, it is less than that of the Inergy Apex.

    inergy, apex, solar, generator

    However, the Flex features a modular design, allowing it to house as many as 96 Flex batteries to its power module.

    This allows the Flex to be much more versatile and powerful than the Apex as more batteries are added to the system.

    With one Flex battery, the power station can adequately power a typical 7 cubic foot freezer for 32 hours and a 20 cubic foot freezer for 22 hours.

    Your 50″ LCD television will get 12 hours of power, and your laptop can get 20 full recharges with this power station.

    As you add more batteries to the generator, the run times get exponentially higher.

    The Inergy Apex has a slightly higher initial battery capacity than the Inergy Flex.

    However, with two or more batteries attached to the Flex, you’ll be able to run appliances for much longer periods than the Apex.

    The Flex is the clear winner in terms of battery capacity.

    Size and Portability of Inergy’s Apex and Flex Power Stations

    The Inergy Apex measures 14 x 9 x 8.9 inches and weighs about 25 pounds. While 25 pounds is a sizable weight in itself, in the solar generator world, with these dimensions, this is a very light system.

    A power station at this weight is relatively easy to move around and handle. You should not have a problem using it for outdoor/camping purposes.

    The Inergy Flex measures and weighs almost the same as the Inergy Apex. The power station measures 14 x 8 x 8.9 inches in size and weighs 30 pounds.

    Verdict: With one battery attached to the Flex, the Apex is five pounds lighter. The Apex is slightly lighter than the Flex, making it more portable.

    Charging Mechanism Duration of the Apex Flex

    The Inergy Apex’s three charging approaches take different durations. The fastest way to charge the Inergy Apex is through the use of solar panels.

    The power station allows for as much as 500W of solar input, which means that if you combine five 100W solar panels, you can fully charge the power station in as little as 2.2 hours.

    However, this duration is only attainable in perfect weather conditions. And as perfect conditions are rare in most cases, the realistic duration for fully charging the power station with 500W of solar is five to six hours.

    This duration is still the fastest as the wall charging takes about 14 hours to fully charge the power station. The use of a wall charger only inputs 80W of electricity, thus the 14-hour timeframe.

    However, there is a Quick Wall Charger for the power station, and this charger doubles the charging speed, so it takes seven hours to fully charge the power station.

    inergy, apex, solar, generator

    It is important to state that the solar generator has an MPPT charge controller. This technology ensures the highest efficiency of the charging process.

    The Inergy Flex has the same three charging methods as well.

    One of the amazing charging features of the Inergy Flex is the fact that you can combine the three methods of charging at the same time. This combination will fully charge your power station in one hour with one battery.

    over, there is a Flex Supercharger which adds additional MPPT charging technology with this power station.

    The Supercharger drastically improves charging times and allows the Flex to charge with up to 1,200W of solar panels as opposed to its standard input rating of 400W.

    Verdict: The Flex outshines the Apex in this regard. The Flex has more charging methods and a shorter charging duration, enabled by combining the three charging methods together.

    Inverter Size – Is the Inergy Apex or Flex Powerful?

    The inverter flows power from the battery to the AC ports and is essential to a solar generator.

    Both power stations have an inverter of the same continuous and peak power. Their powerful, pure sine wave inverters are rated at 1,500W continuous with a peak power of 3,000W.

    However, as stated before, the Apex is only capable of utilizing one-third of the inverter’s capabilities. Although this is the battery’s issue, it is still extremely important to understand this fact.

    Verdict: There is no difference between the inverters of the two power stations as they have the same ratings and capacity.

    Does the Inergy Apex or Flex Have RV Connectivity?

    The Inergy Apex has a 30-amp RV port. This port allows users to connect the power station to a travel van, RV, or trailer. The Flex does not have this feature.

    Verdict: The Apex is the clear winner here by default.

    Number of Ports on the Apex and Flex Solar Generators

    The two power stations share a similarity in the number of ports available on the power stations.

    Both power stations have six AC outlets, two cigarette outlets, two Type-A USB ports, two Type-C USB ports, and two 5.5mm x 2.5mm outputs for Inergy accessories.

    However, there are two differences in ports to consider. The first is that the Apex can connect to third-party external batteries when the Flex is only designed to be able to connect to its proprietary ones.

    The second difference is that Inergy has a second Flex solar generator called the Flex 1500 DC.

    This system has twice as many DC ports as the Flex AC unit, with four USB-A, four USB-C, four 5.5mm x 2.5mm ports, and four cigarette ports.

    It also has two Anderson PowerPole output ports. However, all of the AC ports are removed, hence the Flex “DC” title.

    Verdict: The Flex comes out on top in this comparison due to its AC and DC versions, allowing the generator to cater to customer needs.

    Conclusion – Apex vs. Flex

    Having compared these two power stations, it is safe to say that they are both quality products and a wise purchase for anyone looking to invest in a solar generator.

    The difference between them is minimal unless you decide to expand the Flex generator with more batteries and/or the MPPT Supercharger.

    The Flex DC version is drastically different when comparing ports.

    But one of the most distinguishable attributes that sets the Flex on top over the Apex as the winner is its ability to use the inverter to its full capacity.

    Inergy Apex vs Goal Zero Yeti 1000 – Which Ranks #1?

    The best generator out of the two is the Inergy Apex. This is because the power-to-weight ratio of the Apex is much higher than the Yeti 1000. Also, the battery life expectancy of the Apex is four times higher than the Yeti, at 2,000 cycles.

    Inergy Apex vs Goal Zero Yeti 1400 Lithium

    The Yeti 1400 Lithium has a slightly larger battery than the Apex, but the Apex has a higher solar input and is significantly lighter.

    • Heavier: 43.7 lbs
    • Expensive: 1,899.95
    • Longer Charge Times: 4.5 hrs from solar (360W) and 25 hrs from the AC charger
    • Lower Cycle Life: 500 to 80% capacity
    • Wi-Fi-enabled (Apex is not)
    • Powerful: 1,500W, 3,000W surge

    In addition, the Yeti 1400 has a much better display screen than the Apex, allowing you to review input and output data, battery charge status, and more.

    Although it doesn’t have much more information available than the Apex, the general aesthetic is more pleasing to look at on the Yeti 1400.

    Overall, the Apex is more portable than the Yeti 1400.

    Although the Yeti has more battery capacity and inverter strength than the Apex, both of these factors add to its weight, making it nearly twice as heavy as the Apex.

    Inergy Apex vs Goal Zero Yeti 3000 Lithium

    The Yeti 3000 Lithium has a battery that is about three times larger than the Apex.

    The Goal Zero Yeti 3000 is a beast of a generator, so how does this model compare to the Apex in terms of the following?

    Check out this comparison chart that compares a few important qualities to look for when looking for the right solar-powered generator:

    Although the inverter capabilities of both of these generators are equal, the actual output from the AC ports is greater for the Yeti 3000 Lithium.

    The Apex’s continuous discharge is rated at about 550W. It can run devices over 550W, but it is not recommended for long periods of time.

    When looking for the right generator, you need to look at what you’re mostly going to use it for.

    For RV use, the Apex is better because of easy mobility. You can take it outside or move around the RV without much trouble.

    On the other hand, if you’re wanting to get a generator for backup power for appliances and electronics within your home, then the Yeti 3000 will probably outweigh the Apex because it can produce power for a longer duration AND it is Wi-Fi-enabled, allowing you to monitor the use of the generator.

    Read my full review of the Goal Zero Yeti 3000 Lithium here.

    Solar Panels Offered by Inergy:

    The Linx solar panels are 100 watts each and are semi-flexible as well. They are the new and improved version of the Solar Storm panels from Inergy.

    Both are rated at 100W, which is the standard size for a mountable solar panel for a rooftop, car, shed, or any other flat surface with easy access to the sun.

    What Are the Benefits of Having Linx Panels vs Solar Storm Panels?

    There are two main differences. The first is that the Linx panel is made of monocrystalline, which is made with a higher grade of silicon thereby improving the efficiency of the solar panel. In addition, the Linx panels are half of the weight of the Solar Storm panels.

    Polycrystalline, which is what the Solar Storm panels are made of, is made with lower grade silicon and reduces the efficiency of the solar panel by a small percentage.

    From 16.2 pounds to an 8-pound panel is a feat within itself for Inergy and can help you transport your solar panels much more easily, especially if you have a bunch of them.

    Inergy’s Role in Giving Back to the Community

    Inergy has given back to communities in need in various ways within the last couple of years.

    When a large storm comes in, it could ravage a city and the surrounding areas. In the case of Puerto Rico with Hurricane Maria, the storms came through and ravaged their land.

    In response to this horrid event, Inergy donated several of their Kodiak solar generators to families that needed the machines to help keep them and their families alive.

    Overall, Inergy has donated over 350,000 in products thus far to families in Puerto Rico and Haiti.

    Frequently Asked Questions

    For more details on the Apex, check out my video below.

    Hi! I’m Max and I am passionate about off-grid solar technology and adventure! I’m using my knowledge of solar generators, solar panels, and everything in between to provide you with the best tools to keep you powered while off the grid. Read more about me here: About Max Peters.

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    INERGY Kodiak X2 Solar Power Station User Guide

    Home » INERGY » INERGY Kodiak X2 Solar Power Station User Guide

    INERGY Kodiak X2 Solar Power Station User Guide


    • When you unbox your Kodiak X2, PLEASE DO NOT throw away the packaging. It may come in handy down the road in case of damage from shipping or handling, or any other issues requiring a return.
    • Charge your Kodiak X2 to 100% by connecting the wall adapter into the AC Charge Input on the left side of the unit. Ensure that the Dualink Parallel Switch is in Solo Mode prior to connecting to the wall to charge by pushing the switch fully to “S”. Charging can only be done while in Solo Mode. Leave the Main Power Button on the LEFT side of the unit ON during charging, this will allow the Kodiak X2 to reach 100% and balance the internal multi-cell battery pack. Never charge a Kodiak X2 if the temperature is below 32°F. For instructions on connecting 2 Kodiak X2’s together, see Using Your Kodiak X2 in Dualink Parallel Mode.
    • When your Kodiak X2 is fully charged, plug a device into each output to make sure that nothing was damaged in shipping and handling.
    • It is EXTREMELY IMPORTANT that the Kodiak X2 not be left stored at a very low battery level, or run until it turns off and not recharged within a day or two. Not doing so can permanently damage the battery and is not covered under warranty.


    NEVER connect an input exceeding 65 volts, i.e. the open circuit voltage (VOC) on solar input, to the blue EC8 charging port (left side) on the Kodiak X2.

    NEVER exceed output and input connector ratings. Failure to do so may result in unit damage, fire, or electrical shock. You can find these ratings under Tech Specs.

    NEVER store a Kodiak X2 in hot environments, such as a hot vehicle. Lithium batteries are sensitive to extremely high temperatures. For more information see Tech Specs.

    NEVER touch, stick metal objects into, or otherwise come in contact with the interior of the AC outlets on the Kodiak X2. Doing so risks death, serious injury, and electrical shock. These outlets supply power comparable to that of a normal home wall outlet and, while ungrounded, still present many of the same dangers.

    NEVER allow the Kodiak X2 to get wet. Allow any condensation to dry completely before powering-up or charging your Kodiak X2. If your system does get wet, contact us to ensure it’s safe before attempting to use it again.

    NEVER attempt to repair your Kodiak X2 or replace the internal battery yourself; any manipulation or disassembly will void all warranties. Any tampering with the warranty stickers (black dot with Inergy logo) may also void the warranty. For questions about repair/service, please contact our U.S.-based Tech Support team (see Contact Us). There are no user-serviceable parts inside.

    ALWAYS keep your Kodiak X2 clean and dry. Regularly inspect for dirt, dust, or moisture. You may clean connectors, outlets, and fans with canned air for electronics. Never use an air compressor to clean or dust-off your system.

    inergy, apex, solar, generator

    NEVER use a generic or off-brand charger to charge your Kodiak X2. Use only Inergy-supplied chargers specifically for this device.

    NEVER connect your Kodiak X2 AC outlets to another power source (i.e. attempt to charge your Kodiak X2 via the AC outlets). Doing so will permanently damage your device and void your warranty. These outlets are output only, and any such damage is easily detected when diagnosing system failures.

    BE AWARE that the Kodiak X2 can get hot when in use. Charge your Kodiak X2 in a well ventilated, dry area.

    NEVER use or store a Kodiak X2 in any orientation other than standing straight up. The Kodiak X2 is designed to be stored and operated while sitting on a flat, secure surface.

    ALWAYS secure the Kodiak X2 with straps or cords when using it in a vehicle to protect against excessive vibration or impacts







    LCD Image Key

    A Power Input IconAppears anytime there is a power source connectedB Battery Level DialDisplays estimated battery level expressed as a dialC Power Output IconAppears anytime there is a load (AC or DC)D Alarm IconAppears whenever there is a fault or alarm (i.e. low battery voltage)E Power Output ReadingTotal combined power output (AC DC) measured in watts.F Estimated Run Time ReadingEstimated run time remaining at current output level measured in hours. Run times 9.9 hours the display will simply remain at 9.9 hours.G Power Output Icon 2Appears anytime there is a load (AC or DC)H AC Frequency ReadingMeasures AC output frequencyI AC Voltage ReadingMeasures AC output voltage from the inverterJ Dualink Parallel Mode IconDisplays only when Dualink Parallel Mode is onK State of Charge ReadingDisplays estimated state of charge (SoC) as a percentageL Power Input Icon 2Appears anytime there is a power source connectedM Est. Time ReadingEstimated time until fully recharged at current input level measured in hours. Recharge times 9.9 hours the display will simply remain at 9.9 hours.


    General InformationThe Kodiak X2 can only charge in Solo Mode, as indicated by the Dualink Parallel Switch being pushed completely to the right below the letter “S”. This switch is located below the charge ports on the left side. Ensure this is done BEFORE connecting a charge source. Because the Kodiak X2 must be charged in Solo Mode, never attempt to charge a Kodiak X2 while it is connected to another Kodiak X2 in Parallel Mode, doing so will void the warranty and may result in fire, property damage, or bodily harm. While charging, leave the Main Power Button in the ON position, this will allow the Kodiak X2 to reach 100% and balance the internal multi-cell battery pack.

    TemperatureThe Kodiak X2 should only be charged when the temperature of the battery is above 32°F. The battery will suffer irreparable damage if charged when the temperature of the battery itself is below 32°F. We have included temperature sensors in the Kodiak X2 battery pack that can be read by our mobile app to help you if you suspect that the ambient temperature is close to that level. If it is below freezing, simply allow the Kodiak X2 to warm up for an hour or two before charging. Similarly, charging the Kodiak X2 when it’s too hot (above 104°F) can also degrade and damage the battery.

    When charging your Kodiak X2, the LCD screen will indicate the amount of power being sent to the battery and an estimated charge time. This estimated charge time is based on the real-time power input and output shown on-screen, and it will change as the average charge or discharge rates fluctuate.

    Charging From the Grid (AC Wall Outlet)You can charge your Kodiak X2 from normal AC power sources. The wall adapter provides up to 1080 watts of charge power. Because of this extremely fast charge rate, only one charge source at a time will charge the battery: either the grid OR solar input, not both at the same time. If both are connected, AC charging will be prioritized and solar charging will be disabled. In the event the grid goes down and AC charging is lost, solar charging will automatically be re-enabled until the system is either charged or grid power is restored. Important Note: The Inergy Quick Wall Charger that is used for the Flex 1500 Power Station or Apex Power Station is NOT compatible with the Kodiak X2 and should not be used. It may damage your system.

    Charging With Solar PanelsIn general, with solar panels in a shadow-free environment, no obstructions, and clear sunlight, it’s common to see a charge rate of about 80% of the wattage of your solar panel array. Utilizing solar energy can be as simple as pointing your panels at the sun. However, there are many variables that can affect the panel’s performance, and there are a few “best practices” to know. For help charging with solar panels and configuring your solar arrays correctly, please call us (see Contact Us) and we’ll be happy to help you out. Here are a few of the most common variables that affect performance, and some tips and tricks to help you maximize your results:

    Ideal Time of DayAs a general rule of thumb, the brighter the sun is shining, the better your solar panels will work. Panels operate at peak efficiency when the sun is most direct— typically around midday. Solar panels run off of light, not heat. In fact, solar panels produce the most during cold, clear days rather than in extremely hot conditions. Even on a windy day, solar panels can still operate at peak output. Cloud cover will significantly reduce the efficiency of the panels, though they will still continue to generate some electricity.

    Time of YearThe amount of daylight changes with the seasons, as the sun moves closer and farther away from you. During summer months, overall solar production is generally higher due to more daylight hours. Although the winter months have fewer daylight hours, cold temperatures positively affect a panel’s performance. In fact, cold temperatures in clear conditions can generate the most solar production overall.

    Panel PlacementPlace your solar panel where it will get as much direct sunlight as possible. Shade on one or more panels can reduce the performance of the whole string. Take care to avoid trees and other shade that may move with the sun throughout the day.

    Peak Your PanelsPointing your panels directly at the sun and adjusting them throughout the day will yield the best results. The angle will vary from month to month, but an angle of 30-60 degrees from flat is generally considered ideal. As long as you point your panels at the sun, you should get good results.

    Safety TipsThe Kodiak X2 is designed for use with and rated for Inergy-brand solar panels, but you can use third-party solar panels if you have them. In general, you should not mix different types and ratings of panels; always use identical panels in a string. As a hard rule, any string of solar panels must not exceed the open circuit voltage (VOC) rating of the Kodiak X2 (see Tech Specs). If you have any questions or doubts about your solar panels’ open circuit voltage, please call us. (See Contact Us.)

    Clean Your PanelsSolar panels function through the interaction of many individual cells (see right). Output can be greatly affected by even the slightest obstruction to a single cell of the panel. Make sure the panel is free of any dirt, debris, or other objects like stickers and decals. Aftermarket protective coatings, including clear films, plastic sheet/ paneling, and even glass, can also greatly reduce panel performance.

    Panel Wiring – Series vs Parallel vs Series-ParallelWiring your panels correctly is key to getting the highest efficiency in your unique situation. You can wire panels in parallel (connecting all positive wires together, and all negative wires together) or series (connecting the positive wire of one panel to the negative wire of the next). Another wiring method is series-parallel, which involves a single series string of multiple identical parallel strings. Because the Kodiak X2 has a 24V internal battery, parallel solar panel wiring configurations with 12V solar panels will charge the battery, but may be slower and underperform. 12V solar panels wired in a series (under 65 VOC) or a series-parallel configuration will provide optimal charging performance. See the diagram below for how to wire 4 solar panels in a series-parallel configuration.

    Inergy Solar Panels (or Other MC4 Panels) Connected in SeriesConnecting solar panels in series increases the voltage of the string. A VOC over 45V can be dangerous, risking electrical shock and personal harm if not handled properly. When using solar panels in series, always follow this process when connecting them to your Kodiak X2:

    Step 1. Plug the blue EC8 connector of your 30’ EC8-to-MC4 Ascent Panel Cable into the blue EC8 connector on your Kodiak X2 Power Station.

    Step 2. Connect the male and female MC4 connectors on your solar panels in one continuous string, male to female and so on. When you are done connecting your panels, you will have one open male connector on one end of your string, and one open female at the other end.

    Step 3. Connect the MC4 connectors on your EC8-to-MC4 cable to the corresponding connectors on each end of your string of solar panels. You should end up with a closed loop (a completed series connection). See the next page for an illustration of this process. If you have questions or difficulty with this setup, please contact our support team (see Contact Us).

    You will know the Kodiak X2 is charging from your solar panels when the LCD screen indicates both a charge input on the LEFT side of the LCD and an estimated charge time appears. The battery icon in the lower left side of the screen will blink, and the dial in the center of the screen will blink as well to indicate charging. The estimated charge time will fluctuate as the power input and output of the system changes in real-time. It can take up to 30 seconds for charging to begin, while the Smart charger detects your panels and the input voltage stabilizes.

    Legacy Inergy Panels With EC8 ConnectorsRemember that 12V solar panels with EC8 connectors are wired in a parallel configuration, and may underperform with the Kodiak X2. If using legacy Inergy panels with EC8 connectors, always use the following process when connecting your panels:

    Step 1. Plug one of the blue EC8 connectors on your 30’ EC8 Solar Panel Cable into the blue EC8 connector on your Kodiak X2 Power Station.

    Step 2. Connect the other end of your 30’ cable to one of the EC8 leads on your Solar Storm or Linx panels.

    Step 3. Connect additional cables as desired using the 6’ EC8 Solar panel cables between panels.

    You will know the Kodiak X2 is charging from your solar panels when the LCD screen indicates both a charge input on the LEFT side of the LCD and an estimated charge time appears. The battery icon in the lower left side of the screen will blink, and the dial in the center of the screen will blink as well to indicate charging. The estimated charge time will fluctuate as the power input and output of the system changes in real-time

    Cell BalancingThe Kodiak X2 uses multi-cell lithium battery packs, which can become unbalanced after heavy use or after going a long time between full charges. This means that one cell group is at a higher or lower state of charge (SoC) than the others. In order to resolve this imbalance, the battery needs to be charged while the intelligent management system balances each cell group. The Kodiak X2 employs a Rapid cell balancing system to address the issue while it charges, but this process can take several hours. You may see the SoC remain at ~99% for extended periods until balancing finishes. You can still use the Kodiak X2 without charging up those last few percentage points, but you won’t get the max capacity until the system reaches 100%. Just give your unit a full overnight charge every now and then to ensure the maximum charge capacity is reached.

    Charging for Long-Term StorageIf you intend to store your Kodiak X2 for an extended period of time, we strongly recommend you check the state of charge once every three months. If the state of charge dips below 30%, we recommend charging it to about 50% before putting it back into storage. The ideal battery SoC range for long-term storage is 30 – 50%.


    Powering Your GearThe Kodiak X2 Power Station has a Main Power button located on the LEFT side of the unit. Each group of outputs are then turned on/off with their own small power button connected to the orange line that surrounds each group. The only exception to this is the 12V car ports and 5525 DC outputs, which turn on/off at the same time when the small power button for either section is pressed. When activating AC output, there is a 8-10 second delay before AC power begins. To maximize your run time, connect your Kodiak X2 to a charge source while using it. You can charge your Kodiak X2 and run your gear at the same time as long as the Dualink Parallel Switch is in Solo Mode.

    Using the Kodiak X2 as a UPS (Uninterruptible Power Supply)The Kodiak X2 Power Station can be used as a UPS to provide constant, reliable power to devices of your choosing as long as they are within specification (See Tech Specs). Before connecting anything, verify that the Dualink Parallel Switch is in Solo Mode (with the switch on the left side of the Kodiak X2 being pushed completely to the LEFT under the letter “S”). The Kodiak X2 can only function as a UPS while in Solo Mode.

    Connect the wall adapter to the AC Charge Input on the Kodiak X2, then connect the other end of the wall adapter to an AC power source. If the battery is depleted, it will automatically begin charging. Next, connect whatever device you want to supply power to by plugging into any of the AC outlets on the front of the Kodiak X2. Press the Main Power Switch to the ON position, followed by the AC Power Button (the small button above the AC outputs). The Kodiak X2 will automatically recharge the battery (if it’s depleted) AND begin providing uninterrupted power to the device you have connected. Simply leave the power on in this configuration.

    In the event of a power outage and grid power isn’t available, the Kodiak X2 will automatically switch (within ≤ 10ms) to battery power and continue outputting reliable power to your device. Should grid power be restored, the Kodiak X2 will again automatically switch to allow grid power to flow to your device and begin recharging the battery at the same time.

    Solar panels can also be connected while the Kodiak X2 is in this configuration. In the event of a power outage and grid power isn’t available, solar charging will automatically enable AND the Kodiak X2 will switch to battery power to continue outputting reliable power to your device. Once grid power is restored, solar charging will automatically disable and the battery will recharge via the wall adapter while providing grid power to your device.

    Using the Kodiak X2 in Dualink Parallel ModeThe Kodiak X2 can be paralleled with another Kodiak X2 to provide double the battery capacity and double the AC output. To use Dualink Parallel Mode, follow the step below to ensure safe operation. Not doing so could result in permanent damage to your Kodiak X2, risk of severe shock, fire, property damage, or bodily harm and will void the warranty

    • Begin with both units turned off.
    • Push the Dualink Parallel Switch (located on the left side of the unit) completely to the RIGHT, so the switch is below the letter “P” on BOTH units as seen in FIGURE 1.
    • Connect the wall adapter to the AC OUTPUTS on the secondary unit, and the other end to the AC INPUT on the primary unit, as seen in FIGURE 2
    • Turn on the Main Power Button on both units, but NOT the AC Power Button.
    • Verify the Parallel Mode Icon appears on the LCD of BOTH units, as seen in FIGURE 3.
    • Connect the desired AC load to the PRIMARY unit ONLY.
    • Turn the AC Power Button on for the PRIMARY unit, then the SECONDARY unit. Any AC loads connected to the primary unit will be shared equally between the two units.

    Getting the Most Out of Your Kodiak X2When using the Kodiak to power your gear, pay attention to the LCD display. If you are using appliances that draw a lot of power, like a space heater or heat gun, the state of charge can decrease rapidly, and you may not be able to use the full system capacity. There will inevitably be some energy loss between the battery and the outputs, which means you may not be able to use the full storage capacity with heavy loads. This energy loss is common to all electronic devices. If run times are shorter than you expect, this is probably why. As a general rule, higher power output usually results in lower system efficiency. Another key fact is that the DC outputs are much more efficient than the AC. For instance, it’s better to charge your mobile devices from the DC ports when possible, rather than plug a wall charger into the AC outputs. The Kodiak X2 inverter consumes a few watts of power even with no load.

    Using the Kodiak X2 in Extremely Hot or Cold WeatherTemperature extremes can affect the Kodiak X2’s capacity and even prevent charging. High temperatures are notorious for decreasing the lifespan of not just the battery, but all electronics. If you plan to use the Kodiak X2 in below freezing conditions, you may need to protect it from the cold. Do not use the Kodiak X2 outside of the specified temperature ranges (see Tech Specs).

    Storing the Kodiak X2Store the Kodiak X2 away from flammable items and combustion sources and on a cool, dry, non-combustible surface. Proper maintenance and storage of lithium batteries will ensure not only the safety of your battery, but also help you maximize cycle life and performance. When handling lithium-ion batteries, do not short-circuit, crush, drop, mutilate, penetrate with foreign objects or otherwise modify the battery or its enclosure. Do not expose them to extreme temperatures or disassemble packs and cells. The safe storage and operating temperatures of the Kodiak X2 are found in Tech Specs. If a Kodiak X2 is exposed to extremely high temperatures, or it hisses, bulges, or pops, immediately move it away from flammable materials and place it on a non-combustible surface for at least 48 hours, and call us immediately.

    Although it is very unlikely, there is always a small risk of lithium batteries catching fire. If you do experience a lithium battery fire, douse it with copious amounts of water until extinguished, then remove anything flammable from the vicinity of the battery. Do not attempt to touch or move the battery as it can reignite, putting you in danger.

    If you cannot douse the fire with water, allow the fire to burn out on its own in a controlled and safe manner, away from anything flammable. Allow the device to remain on a non-combustible surface for at least 48 hours, as lithium batteries can potentially reignite.


    • Battery Type: Lithium – LFP (LiFePO4)
    • Nominal Storage Capacity: 1,280 Wh (50Ah, 25.6V)
    • Cycle Life: Up to 6000, 80% capacity
    • Input Maximum (1)12A, 120VAC 60Hz
    • AC Output (4)1200W, 120VAC 60Hz Continuous, Pure sine wave
    • AC Overload101~110% Overload, 3 minutes111~130% Overload, 1 minute131~149% Overload, 1 second150~200% Overload, 100mS
    • UPSLine-interactive, ≤ 10ms switching time
    • Dualink Parallel Output2 Kodiak X2’s in parallel maximum, 2400W (120VAC 60 Hz) output maximum

    Charging Specifications

    Solar Charge Controller: MPPT, 18-65VDC input, 10A maximum charge rate, 400W maximum inputAC Charging: Up to 1080W maximum

    • 12V Car Ports (2): 12V Regulated DC, 10A maximum
    • USB-A Outputs (3): 5V, 2.1A
    • USB-C Outputs (3): 5-12V, up to 45W maximum
    • 5525 DC Outputs (2): 12V Regulated DC, 5A maximum

    Environmental Operating Specifications

    • Discharging Temperature: 14° – 104°F (-10° – 40°C)
    • Charging Temperature: 32° – 104°F (0° – 40°C)
    • Ingress Protection: IP20

    Physical Specifications

    Dimensions: 15” wide x 10.25” tall x 9” deepWeight: 34.8 lbs (15.8 kg)


    INERGY HOLDINGS, LLC (“Inergy Solar” or “Inergy”) warrants to the original consumer purchaser that this Inergy Solar product will be free from defects in workmanship and material under normal consumer use during the applicable warranty period identified in Paragraph 2, below, subject to the exclusions set forth in Paragraph 6, below. This warranty statement sets forth Inergy’s total and exclusive warranty obligation. We will not assume, nor authorize any person to assume for us, any other liability in connection with the sales of our products.

    Warranty PeriodIn each case, the warranty period is measured starting on the date of shipment to the original consumer purchaser. The sales receipt from the first consumer purchase, or other reasonable documentary proof, is required in order to establish the start date of the warranty period. Registration is not required.

    “No Lemon” PolicyInergy Solar warrants to the original consumer purchaser that should this Inergy product require service (rendered only by Inergy) on (3) three separate occasions within the above stated warranty period, the unit can be exchanged for a replacement product of comparable type, quality, and functionality at the request of the original consumer purchaser. Validation by an Inergy technician of product failure is required prior to replacement. Your warranty remains in force for the duration of the original 24-month warranty period, and is in no way terminated by replacement product under this No Lemon Policy.

    RemedyInergy Solar will repair or replace (at Inergy Solar’s option and expense) any Inergy Solar product that fails to operate during the applicable warranty period due to a defect in workmanship or material.

    Limited to Original Consumer / BuyerThe warranty on Inergy Solar’s products is limited to the original consumer purchaser and is not transferable to any subsequent owner.

    ExclusionsInergy’s warranty does not apply to (i) any product that is misused, abused, modified, neglected, damaged by accident, or used for anything other than normal consumer use as authorized in Inergy’s then-current product literature, or (ii) any product purchased through an unauthorized seller. Inergy’s warranty does not apply to any battery cell or product containing a battery cell unless the battery cell is fully charged by you at least once every six months. The Kodiak X2 records critical system event data. This data can be used to determine if a battery has been improperly used, including but not limited to improper charging/discharging, short-circuits, water damage, and extreme temperature exposure.

    How to Receive ServiceTo obtain warranty service, you must contact our technical support team via telephone, on live web chat on, or via email. (See Contact Us.) If our technical support team determines that further assistance is required, they will give you a Return Material Authorization (“RMA”) number and return shipping label. You must package the product in original product packaging, clearly marking the RMA number on the package and including proof of your purchase with the product.



    If you have any questions about your Kodiak X2 or the above instructions, please contact our support team using the information here:

    Phone: (877) 891-2657

    Web Chat: / Use the web chat tool at the bottom right of the page.

    Phone and Chat Hours: Monday – Friday, 9:00 AM to 6:00 PM Mountain Time

    Designed in the U.S.A. and Made in ChinaThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

    • Reorient or relocate the receiving antenna.
    • Increase the separation between the equipment and receiver.
    • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help.

    This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

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