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  1. RV Solar Panels
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  8. Lithium - liFePO4
Go Power Solar Flex Charging System with Digital Solar Controller - 220 Watt Solar Panels

Go Power Solar Flex Charging System with Digital Solar Controller - 220 Watt Solar Panels

Item # 34272628
Our Price: $966.82
You Save: $448.18
RV Solar Panels
Shipping Weight: 23 lbs
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This solar charging system helps get you off the grid with 220-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. Solar controller monitors output and prevents overcharging. Great Prices for the best rv solar panels from Go Power. Go Power Solar Flex Charging System with Digital Solar Controller - 220 Watt Solar Panels part number 34272628 can be ordered online at or call 1-800-940-8924 for expert service.
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Go Power RV Solar Panels - 34272628

  • Roof Mounted Solar Kit
  • 200 Watts
  • Go Power
  • AGM
  • Flooded Lead Acid
  • Gel
  • Lithium - liFePO4
  • 10.1 Amps or More
  • Flexible Panels
  • 2 Panels
  • 44-5/8L x 21-7/16W Inch

This solar charging system helps get you off the grid with 220-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. Solar controller monitors output and prevents overcharging.


  • Solar system provides an off-grid charging solution
  • 220-Watt flexible, monocrystalline solar panels use sunlight to charge your RV batteries
    • Durable laminated backsheet withstands water, vapor, and dirt
  • 30-Amp PWM solar controller adjusts solar panel output for a quick, consistent charge
    • Automatic multistage smart charging system helps extend battery life
    • Digital display monitors amperage, voltage, and battery capacity
  • Kit includes 2 solar panels, solar controller, MC4 cables, and all installation hardware
    • Solar panel expansions (sold separately) increase solar power output


  • Application: 12V battery systems
  • Number of solar panels: 2
  • Solar panel wattage: 220 watts
  • Solar controller input current: 30 amps

go power solar diagram no cable entry plate

If you are an energy-conscious RV owner, the Go Power Solar Flex charging system provides clean, renewable power and independence from the grid. This kit comes with everything you need to charge your RV batteries with sunlight. Using 2 flexible solar panels, this system collects solar energy to create DC power that passes through a solar controller to charge your RV batteries.

How It Works

Collecting Solar Power

solar flex panel

The charging process starts with the flexible solar panels, which install on the roof of your RV. When solar energy interacts with the silicon cells in each panel, it generates a flow of DC electrical current that charges your RV's batteries. Each of the monocrystalline cells is made from a single crystal of silicon, so the electrons that create the current have more space to move, making these panels more efficient than one with polycrystalline cells. And in optimal sunlight conditions, the panels produce 220 watts per hour.

solar flex panel bent

The silicon cells are set between a laminated backsheet to withstand the elements. The panels are low profile and bend up to 30 degrees to suit the shape of your RV's roof, making them more aerodynamic than traditional solar panels.

Charging and Protecting RV Battery Bank

go power solar controller

The solar controller prevents harmful overcharging by adjusting the power generated by the solar panel before it reaches your batteries. It uses pulse width modulation technology to regulate the output through pulses that provide a consistent charge. Typically, this type of technology is a good fit for smaller systems with lower voltages.

Using a multistage charging system, the controller automatically switches voltages while the battery bank charges. This accelerates the charge, but also helps extend battery life by adjusting the voltage during the different modes. The controller is compatible with multiple battery types and includes preset charging profiles for sealed/gel, AGM, flooded/wet cell, and lithium batteries.

Charging Modes

  1. Bulk: This mode charges at the full rated load for a quicker recharge time. As the name suggests, this is where the bulk of the charging happens. It typically charges the battery to at least 80% capacity.
  2. Absorption: This mode provides controlled voltage to ensure a full charge. Once the battery reaches between 80% to 90% capacity, the absorption state will kick in and start charging at a regulated voltage. In each charging profile, this mode is set to last for 30 minutes after the bulk charge is completed.
  3. Float: Once the battery reaches full charge, this mode maintains a lower voltage to compensate for self-discharge. This reduces battery stress and minimizes gassing and water loss.
  4. Equalization: On flooded/wet cell batteries, this mode activates to prevent stratification and sulfate buildup during extended float cycles. These two issues can damage a battery by causing the accumulation of acid at the bottom of the battery and hardened sulfate crystals on the battery plates. This mode is especially helpful when your battery is going unused during storage.

With Maximum Power Boost Technology, you can simply press a button to activate Bulk mode for the highest charging voltage. This lets you quickly top off your battery bank before the end of the day by capturing as much power as possible.

solar controller terminals

This solar controller is built to charge two battery banks and has terminals for a primary and secondary battery. Your primary battery will receive the full current until it is completely charged. Then, your secondary battery will start to draw the charge current.

solar controller digital display

The backlit, digital display acts as an information center for your solar panel output. It shows the charging current, battery voltage, and battery state of charge. It also allows you to input your battery type and choose a charging profile. Additionally, a built-in USB port on the front of the controller provides a convenient outlet to charge your cell phone or tablet.

It includes a Bluetooth function that lets you connect the controller to your smartphone or tablet with the free Go Power! Connect app. With this app, you can wirelessly view the same live battery information included on the display. Also, you can control your battery profile and toggle Maximum Power Boost Technology mode.

Lastly, the controller includes several built-in safety features to help protect your equipment. The charging process will shut down if the controller starts to overheat and when an overcurrent is detected. Also, if the battery or solar panel is wired incorrectly, it activates a reverse polarity alarm.

How It Installs

flex 200 how it installs

The system includes (2) 110-watt solar panels, a 30-amp PWM solar controller, MC4 cables, and all the necessary installation hardware.

  1. Solar Panel: The solar panels install anywhere on your RV roof with included mounting hardware. To maximize sunlight collection, it is important to install the panel where it avoids shadows cast by objects, like an air conditioner or vent. The panel uses MC4 cables to connect to the solar controller. These cables can enter the RV through the refrigerator vent or using a Go Power cable entry plate (sold separately). The cable entry plate provides a covered housing and uses a quick connect setup for the MC4 cables.
  2. Solar Controller: The solar controller flush-mounts to a wall inside your RV. The manual includes a mounting template with measurements to ensure proper installation. It is wired to the solar panel using MC4 cables. Then, the battery bank is wired to the primary terminals on the controller. If you are using additional batteries, they can be connected to the secondary terminals. The included 30-amp fuse is installed between the solar controller and battery for additional current protection.

Note: This kit may require more wiring and additional parts depending on your RV setup.

Individual Component Specs:

Solar panel:

  • Rated power: 110 watts per panel
  • Amperage: 5.68 amps per panel
  • Voltage: 17.6V per panel
  • IP rating: IP67
  • MC4 cable length: 3' each
  • Dimensions: 44-5/8" long x 21-7/16" wide x 1/16" deep
  • Maximum bend: 30 degrees
  • Weight: 2.9 lbs each
  • 5-Year limited warranty

Solar controller:

  • Maximum input current: 30 amps
  • Maximum input voltage: 28V
  • Operating temperature range: -40 F to 185 F
  • Temperature compensation: -13mV per F
  • Maximum wire gauge: #4 AWG
  • Dimensions: 7-1/2" wide x 4-1/4" long x 1-1/4" deep
  • Weight: 0.66 lbs
  • 5-Year warranty

83111 Go Power! Flexible Solar Kit - RV Solar Charging - 2 Flexible Panels - 30-Amp Digital Regulator/Controller - 220 Watts - 11.36 Amps

Replaces Go Power GP-FLEX-200

Replaces Go Power 72628REVA

Replaces Go Power 72628

Replaces Go Power 82850

Installation Details 34272628 Installation instructionsAlternate Instructions 34272628 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Go Power Solar Flex Charging System with Digital Solar Controller - 220 Watt Solar Panels - 34272628

Average Customer Rating:  4.9 out of 5 stars   (9 Customer Reviews)

This solar charging system helps get you off the grid with 220-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. Solar controller monitors output and prevents overcharging.


Good product! I installed one of the panels last year and I am very satisfied. That's why I ordered another kit to install for the next season. Both panels of the 200 watt kit tested out excellent. Many thanks!




system installed and worked fine. Put it on top of an old airstream, with corrugated plastic for thermal insulation, panel failed after 9 months, go power handled warranty on replacement, easy process. I have a new air gap system, but i've read that many brands of flexible panels can just fail. some people have had flexible panels working for a while.


Thanks, the solar kit came in much quicker that I expected. Already have it installed and working. Will be checking it out on a trip in a few days.
Cheers, DR.


These people don't play. I placed my order, a little later I got notified it was shipped, (I did pay for 2 day shipping), and it was here. On the ball service, great prices, what more could you ask?



Great products and great company to do business with



See what our Experts say about this Go Power RV Solar Panels

  • Solar Panels For 2020 NuCamp Tag XL
    In order to determine the correct amount of solar panels needed you will have to determine how much you will be pulling from the batteries on your 2020 NuCamp. In order to maintain battery charge you have to make sure the panels are at least matching or putting in more than what your pulling out. Keep in mind you will not be able to use any AC power. The Go Power Solar Flex Charging System Item # 34272628 provides 110 watts per panel with a maximum input current of 30 amps to maintain...
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  • How Many Inputs Does Go Power Flex Solar Panel Kit Controller Have
    The 30 amp controller of the Go Power Flex kit part # 34272628 can only take one power and ground cable but the solar panels can connect to each other on top of the RV to then supply the power of multiple panels on that one set of power cables.
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  • Solar Panel Recommendations For Dry Camping In A 23 RV
    It is a very common misconception that you can directly power your RV and appliances directly with solar power. Solar power is harnessed to charge your battery bank and the battery bank is used to run your RV and appliances. The first step is to figure out how much power you'll be consuming in a day to ensure you have the correct size battery bank. Once you know how much you're using in a day you'll be able to choose the correct size solar panel system to recharge your battery bank. For...
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  • Adding Third Panel For Go Power Solar Flex Charging System
    Yes, you can add an additional flexible 110 watt panel to your system. While the 30 amp controller of the Go Power Flex kit part # 34272628 can only accommodate one power and ground cable, the solar panels themselves can connect to each other on top of the RV to then supply the power of multiple panels on that one set of power cables.
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  • Which Solar Charging System is Best for Camper Pre-Wired with Go Power Solar
    I'll start by saying that when your camper is pre-wired for use with a Go Power Solar, all of the hard wiring is done for you; all you'll need to do is connect your Go Power Solar panels to the installed cable entry plate and the solar panels will provide a charge to your batteries. On the Go Power Portable Solar System # 34282729 the charge controller is actually located on the back of the solar panels and because it's not designed to be left out in the rain, this system isn't a good...
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  • Go Power Pure Sine Wave Inverter Charger and Go Power Solar Flex Charging System
    Yes, the Go Power Industrial Pure Sine Wave Inverter Charger - 2,000 Watts, # 34280055 can be connected to a battery bank that is being charged with a Go Power Solar Flex Charging System with Digital Solar Controller and 220 Watt Solar Panels, # 34272628. Keep in mind that a 2,000 watt inverter is capable of running a lot of items simultaneously. This generally speaking is used with a large battery bank that is being charged by more than 200 watts of solar. Please note the link to Help...
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  • Choosing a Solar Panel Kit for a 2013 Rockwood A122BH A Frame Pop-Up Camper
    Choosing the correct solar panel kit can be a bit overwhelming because there are so many options out there. For your application I would definitely get another battery (Lithium are the best) and then you might want to go with the Elite # 34282184 over the Flex # 34272628 simply because the Elite solar panels will draw in more energy and if most of the places you camp are wooded like what you show in your pictures you're going to need all the help you can get from the solar panels. Ultimately...
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  • Solar Panels for Small Trailer for CPAP Machine and Appliance
    The correct solar panels are going to depend on the amount of power your CPAP machine and appliances use, but based on some research I did, it looks like most of these machines are going to need in the neighborhood of 40 to 50 amp hours per night. Based on that and the fact you want to run a couple other appliances I recommend the Go Power Solar Flex Charging System with Digital Solar Controller - 220 Watt Solar Panels # 34272628. This will give you the amp hours needed for a full night...
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  • Can Go Power Industrial Pure Sine Wave Inverter Charge Lithium Batteries with Solar Panel
    The Go Power Industrial Pure Sine Wave Inverter Charger # 34275013 that you referenced can accept input power sources that are both AC and DC so a solar panel input power source can be used. So if you had a solar panel kit like the Go Power Solar Flex Charging System with Digital Solar Controller # 34272628 you'd be able to charge your lithium batteries using the inverter.
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    The Go Power Automatic Transfer Switch # 34264403 that you referenced is a good way to automatically switch between shore power (when available) and an inverter that's being powered by solar charged batteries. It is always going to use shore power if it's present, and as long as the inverter is on, it will automatically switch to it once shore power is disconnected. For this type of setup, starting at the roof, you will of course first need the solar panels like the 220 watt # 34272628....
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  • Recommended Add On Solar Panel for 2019 Forest River Rockwood Geo Pro
    How many panels you need is going to depend on how much power you typically use, what types of appliances you're running and what size your battery bank is. If your trailer already has a solar system, you'll likely be able to mount the panels and plug straight in, since there would already be an inverter present. In most cases, something like the Go Power Retreat # 34272635 would be a good fit for you as long as you've got 2 batteries on your coach. I've linked some helpful videos and...
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  • Can the Go Power 200 Watt Solar Flex Charging System Charge Lithium-Ion and Gel Batteries Together
    The Go Power Solar Flex Charging System part # 34272628 can charge two different battery banks separately. Therefore, you can charge both the lithium-ion and gel battery banks at different rates. There would be one profile for the lithium-ion battery/bank and another profile for the gel battery/bank which would charge them at different rates so it is adjustable in that sense. In regards to killing power to either bank, the device will do this for you once the battery/bank is fully charged...
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    You can use the solar panel charge kit # 34272628 with the battery bank of your camper and still charge the batteries with a separate charge source (vehicle alternator, power outlet) but you'll also want the Redarc # 331-SBI212D which balances the charge between the two sources and prevents any backfeeding or other issues like you mentioned. So basically you'd run your two charge circuits to the CTEK and then it would charge the batteries. See attached picture.
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  • Would Go Power Industrial Pure Sine Wave Inverter # 34278157 Work to Power 13.5k BTU RV AC Unit
    13,500 BTU AC units like the Advent part # ACM135C require 1,450 watts so the 3,000 watt inverter part # 34278157 that you referenced would easily cover that. Given the very specific limitations of your situation this would be the best solution overall. A solar panel kit might help too though like with the Go Power part # 34272628 which can provide 220 watts to help charge the batteries.
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  • Can Trailer Battery Be Charged from Vehicle, Solar Panel, and Wall Outlet Charger
    Basically you'd want the Redarc Dual Battery Charger # 331-SBI212D to cover the solar panel and alternator charging of the battery and then when wanting to charge the battery from shore power you'd want a charger designed for that like the # CTEK56353. You can install the quick connects of this kit to the battery and easily connect the charger when needed. This would not require the removal of the D250S either. Basically it would just be a matter of letting the trailer charger setup charge...
    view full answer...

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