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Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels

Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels

Item # 34275012
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Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels 500 Watts 34275012
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This solar charging system helps get you off the grid with 500-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. MPPT solar controller optimizes output for maximum charge. Lowest Prices for the best rv solar panels from Go Power. Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels part number 34275012 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Go Power RV Solar Panels - 34275012

  • Go Power
  • 5 Panels
  • Roof Mounted Solar Kit
  • 500 Watts
  • Flexible Panels

This solar charging system helps get you off the grid with 500-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. MPPT solar controller optimizes output for maximum charge.


  • Solar charging system provides DC power to charge your RV's batteries
  • 500-Watt flexible solar panels and solar controller use sunlight to charge your RV's batteries
    • Panels install on your RV's roof and convert sunlight into safe, renewable DC power
    • MPPT controller prevents harmful overcharging - fixed-mount remote display lets you monitor charging conditions
  • Low profile, flexible solar panels fit almost any surface
    • Bend up to 30 degrees to accommodate the shape of your application
    • More aerodynamic than traditional rigid solar panels
  • Monocrystalline solar cells set behind a durable laminated backsheet withstand water, vapor, and dirt
  • Solar panel expansions (sold separately) increase solar power output
  • Kit includes 5 solar panels, solar controller with remote, MC4 cables, and all installation hardware


  • Application: 12V and 24V battery systems
  • Number of solar panels: 5
  • Solar panel wattage: 500 watts
  • Solar controller input current: 40 amps

go power solar diagram with 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 5 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 500 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

mppt 40 amp solar controller

The solar controller prevents harmful overcharging by adjusting the power generated by the solar panels before it reaches your batteries. It uses maximum power point tracking technology to compare solar output to battery voltage and converts that output to an optimal amperage. Typically, this type of technology is a good fit for larger systems with higher voltages. This kit also includes a fixed-mount remote that installs inside your RV.

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, and flooded/wet cell 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.

mppt solar controller remote

The fixed-mount remote with 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 allows you to input your battery type and choose a charging profile. The remote also lets you use 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.

This solar controller comes with a sensor that enables temperature compensated charging. As the controller experiences changes in temperature, the sensor compensates for those changes by adjusting the voltage during charging to help extend the life of your batteries. This protects from overcharging in hot temperatures and undercharging in cold temperatures.

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 500 how it installs

The system includes (5) 100-watt solar panels, a 40-amp MPPT solar controller, a circuit breaker, a solar disconnect, 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 panels where they avoid shadows cast by objects, like an air conditioner or vent. The panels use MC4 cables and branch connectors to connect to the solar controller. These cables can enter the RV using the Go Power cable entry plate. This provides a covered housing and uses a quick connect setup for the MC4 cables.
  2. Solar Controller: The solar controller vertically mounts to a wall near the battery compartment. 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 terminals on the controller. To install the battery temperature sensor, the ring terminal is installed to the battery and the terminal block is plugged into the controller's temperature port.
  3. Solar Controller Remote: The remote flush-mounts to a wall inside your RV. The manual includes a mounting template with measurements to ensure proper installation. It simply plugs into the solar controller with the included cable.
  4. Solar Disconnect: The solar disconnect installs between the solar panels and solar controller. This device lets you shut off power to the solar controller for maintenance.
  5. Circuit Breaker: The circuit breaker is installed between the solar controller and battery bank to protect your equipment.

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

Individual Component Specs:

Solar panel:

  • Rated power: 100 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: 40 amps per controller
  • Maximum input voltage: 150V per controller
  • Operating temperature range: -40 F to 140 F
  • Temperature compensation:
    • 12V systems: -13mV per F
    • 24V systems: -26mV per F
  • Maximum wire gauge: #2 AWG
  • Dimensions: 6-13/16" wide x 6-11/16" long x 2-1/4" deep
  • Weight: 2.6 lbs
  • 5-Year warranty

Solar controller remote:

  • Nominal system voltage: 12V / 24V
  • Battery voltage range: 9V - 31V
  • Operating temperature range: 14 F to 131 F
  • Ethernet cable length: 25'
  • Dimensions: 5-7/8" wide x 3-7/8" long x 1-5/16" deep
  • Weight: 0.49 lbs
  • 5-Year warranty

GPFLEX500 Go Power! Flexible Solar Kit - RV Solar Charging - 5 Flexible Panels - 40-Amp MPPT Digital Regulator/Controller - 500 Watts - 28.4 Amps - GP-FLEX-500

Replaces Go Power 75012

Installation Details 34275012 Installation instructionsAlternate Instructions 34275012 Installation instructions

California residents: click here

Video of Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Go Power RV Solar Panels - Roof Mounted Solar Kit - 34275012 Review

Speaker 1: Today we're going to take a look at the Go Power! 500 Watt Flexible Solar Kit with the Digital Controller. Now this kit uses these flexible solar panels that have the MC4 Connectors on them. They can conform to almost any surface. They're perfect for RVs and boats. They're very lightweight, low profile design. They're ideal for lightweight RVs.

And they're only about an eighth inch thick, so it allows bending up to 30 degrees.The solar panel construction, it's a laminate TPT backsheet with stainless steel grommets on the ends to install it. The solar panels, they do use monocrystalline cells, which produce more power per square foot than any other panel on the market and they're very easy to install. You can affix them by adhesive or by screws and it does come with the mounting hardware.Now this kit will include everything laid out here. Comes with the 500 watt solar panels with the mounting hardware. It comes with the MPPT Solar Controller with cables.

Comes with the MPPT Digital Remote Display with cables, a cable entry plate with 25 feet of red and 25 feet of black cable. Comes with the battery cables right here. Also has five, three foot long MC4 Output Extension Cables to connect your solar panels. Has a 80 amp Circuit Breaker. Right here is the Solar Disconnect Box.

All the mounting hardware to install it and a nice detailed user's manual that will describe how to install everything and how it operates.Now, going back to the solar panel here. These solar panels, their wattage is 100 watts per panel. Maximum power voltage is 17.6 volts. Maximum power current is 5.68 amps. Open circuit voltage is 20.8 amps, short circuit current is 6.14 amps.

Maximum tolerance is plus or minus five percent. The Series Fuse Rating is 10 amps. Maximum system voltage, 600 volts DC. The weight on one of these is just under three pounds, about 2.9 pounds and the length on them, if I hold this up, is going to be 44 and five-eighths inches long. The width on the panel is 21 and seven-sixteenths inches wide. And, as I mentioned earlier, they're only about an eighth of an inch deep.Now the solar controller, that's this part right here. This solar controller is a MPPT and that stands for Maximum Power Point Tracking Controller. Maintains the life of the battery by preventing overcharging. A controller will regulate your current flow from your solar panels to your batteries. Also charges 12-volt and 24-volt batteries with higher voltage rate. Does use three battery charging profiles, sealed, AGM, and flooded. And on the remote for it, right here, uses a backlit LCD screen to display charging current, battery voltage and battery state of charge. They do use heavy-duty terminals here to provide low resistance connections and they can be stacked with another controller for twice the array capacity.System voltage on this is 12 volts, 24 volts. Maximum charge current is 40 amps. Battery voltage range is for a 12-volt system, nine volts to fifteen and a half volts. For a 24-volt system, 18 to 31 volts. Maximum solar panel input voltage is 150 volts. Over voltage protection is 15 and a half volts, 31 volts. And the maximum photovoltaic power input at 12 volts is 600 watts, at 24 volts is 1200 watts.So, overall wattage on this kit is 500 watts. Overall power current is 28.4 amps. But that should do it for the review on the Go Power! 500 Watt Flexible Solar Kit With the Digital Controller.

Customer Reviews

Go Power Solar Flex Charging System with MPPT Solar Controller - 500 Watt Solar Panels - 34275012

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

This solar charging system helps get you off the grid with 500-watt flexible solar panels that provide DC power to charge your RV's batteries. Panels flex to fit on various surfaces. MPPT solar controller optimizes output for maximum charge.

- 34280058

Review from a similar Go Power Flex Solar Kit in RV Solar Panels

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? 729383


Ask the Experts about this Go Power RV Solar Panels

  • Can an AC Unit be Powered Solely from Solar Panels
    You can use a solar panel unit to help power your AC unit but since AC units pull so much power you would have to have a very large solar panel unit and clear skies to power it. To properly provide power to your AC you would need an AC/Dc panel like part # PD4045KA, a battery bank (preferably deep cycle), a large solar panel kit like part # 34275012, and either access to shore power or using a set of generators like part # 333-0003-2-0007.
    view full answer...
  • Parts to Make 1000-Watt Go Power Solar Panel System
    The 500-watt Go Power Solar Flex Kit with Digital Controller # 34275012 can be expanded to increase its capacity to 1000 watts. I confirmed this with my contacts at Go Power. You would simply purchase two of the 500-watt kits # 34275012 and link their separate 40-amp controllers, each of which handles the output of 5 panels. You would end up with a spare remote display but that is the only item that would be a duplicated. You would not need any other parts. This would give you a total...
    view full answer...
  • Intended Application for Go Power 500-Watt Solar Flex Kit 34275012
    Go Power 500-Watt Solar Flex Kit # 34275012 is designed for RV applications but smaller homes could use one for some of the power needs. It is a complete 5-panel DC-power setup that includes all of the cables and the controller. Its 500-watt output will handle the power needs for many RVs. Please note you can link two of these system together easily enough, to give you a 1000-watt total capacity. Depending on the size of the house and the power requirements this might be enough. You...
    view full answer...
  • Inverter to Use with Go Power Solar Flex Charging System with MPPT Solar Controller # 34275012
    The wattage output of the Go Power Solar Flex Charging System with MPPT Solar Controller # 34275012 is 500 watts so for an inverter that would handle that and work really well we have the Power Inverter part # WC3720 which is rated for up to 1,000 watts. We don't carry deep cycle batteries but the Group 27 batteries are a really great option for RV applications like yours and would work well with this setup as well.
    view full answer...
  • Will Go Power Overlander Expansion Kit Work With 30 Amp Controller
    I believe you are asking if the Go Power Overlander Expansion Kit - 190 Watt Solar Panel # 34282182 will work with the Go Power PWM Solar Charge Controller # 34276119, which is a 30 amp controller, and the answer to that is yes it will. It comes with everything needed to add the panel to your system. Overall, this is compatible with a number of Go Power solar charging systems: - Go Power Solar Elite Charging System - 380 Watt Solar Panels - 2,000 Watt Inverter Charger # 34282184 -...
    view full answer...
  • Recommended Solar Panels for Class A Motorhome with Two 6 Volt Batteries
    In order to achieve 350+ watts of solar energy you would need a larger battery bank as you would overload the solar controller with only two batteries. The Go Power Solar Flex Charging System part # 34275012 for example provides 500 watts of solar energy but requires a six battery bank. The Go Power Overlander Solar Charging System part # 34282181 which provides 190 watts of solar energy is the most you can run with a two battery bank. I have attached a list of all our solar panel kits...
    view full answer...
  • Go Power Solar Kit for Country Coach Affinity Motorhome with Four 8D Battery Bank
    I reached out to my tech contact at Go Power and he said you won't need an additional inverter or transfer switch based on your current system. Having 6000 Watts already available won't require you to have an additional transfer switch or inverter. The Go Power Solar Extreme Charging System - 510 Watts # 34282185 has the inverter included which you don't need. My recommendation is the Go Power Solar Flex Kit w/ Digital Controller - 500 Watts - 28.4 Amp # 34275012. This kit will...
    view full answer...
  • Considerations for Choosing Solar Panels and Inverter for 16-Foot Enclosed Trailer
    As you consider your needs and establish your budget for a solar power system for your enclosed trailer I recommend you start with a read of the help articles I have linked for you. A ground-up solar install is a significant undertaking and the best results come with careful planning. If you can budget for an all-inclusive high-capacity set-up, like the Go Power Solar Flex Kit # 34275012, you can avoid the issue of ending up with less power than you need. Careful review of your devices'...
    view full answer...

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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Edited by:
Amanda M
Written by:
Halie H
Updated by:
Alex H

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