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Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel

Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel

Item # 34280125
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Go Power Expansion Kit Accessories and Parts - 34280125
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The Solar Flex expansion kit comes with everything you need to increase the power output of your Go Power solar charging system. The 55-watt flexible solar panel uses MC4 connections and provides DC power to charge your RV's batteries. Call 800-298-1624 to order Go Power accessories and parts part number 34280125 or order online at etrailer.com. Free expert support on all Go Power products. Guaranteed Lowest Price and Fastest Shipping for Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (3)
  • Q & A (3)
  • Videos (1)
  • Photos
  • Why etrailer?

Go Power Accessories and Parts - 34280125

  • RV Solar Panels
  • Expansion Kit
  • Go Power

The Solar Flex expansion kit comes with everything you need to increase the power output of your Go Power solar charging system. The 55-watt flexible solar panel uses MC4 connections and provides DC power to charge your RV's batteries.


  • 55-Watt monocrystalline solar panel uses sunlight to charge your RV batteries
    • Connects to your existing Go Power solar charging system using MC4 branch connectors
  • Low profile, flexible solar panels fit almost any surface
    • Bend up to 30 degrees to accommodate the shape of your application
  • Durable laminated backsheet withstands water, vapor, and dirt
  • Kit includes single solar panel, MC4 branch connectors, and all installation hardware


  • Applications: 12V and 24V battery systems
  • Rated power: 55 watts
  • Amperage: 2.88 amps
  • IP rating: IP67
  • Dimensions: 42-1/8quot; long x 11-5/16" wide x 1/8" deep
  • Weight: 1.6 lbs
  • 5-Year limited warranty

If you want to expand your solar setup to collect more sunlight and charge your batteries faster, this solar panel expansion will add more amperage to your charging output. This kit includes a single, flexible 50-watt solar panel with mounting hardware that connects to your existing Go Power system using the included MC4 branch connectors.

Flexible Solar Panel Adapts to Multiple Surfaces

solar flex panel

The flexible panel includes silicon cells that are set between a laminated backsheet to withstand the elements. The panel is low profile and bends up to 30 degrees to suit the shape of your RV's roof, making them more aerodynamic than traditional solar panels. And in optimal sunlight conditions, the panel produces 50 watts per hour.

Easy Connection to Go Power Solar Charging Systems

mc4 connectors

This kit is compatible with several Go Power Solar Charging Systems (sold separately). However, the total amount of amps generated by the panels cannot exceed your solar controller's maximum amperage. The solar panel installs 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 is wired in parallel to another panel using MC4 branch connectors.

Compatible Systems

  • Solar Elite - 380 Watt (34282184)
  • Weekender ISW - 190 Watt (34282183)
  • Solar AE-6 All Electric - 1,140 Watt (342-75011)
  • Solar Flex - 500 Watt (34275012)
  • Solar Flex - 200 Watt (34272628)
  • Solar Flex - 100 Watt (34272630)
  • Solar Flex - 50 Watt (34280058)
  • Solar Flex - 30 Watt (34272631)
  • Overlander - 190 Watt (34282181)
  • Retreat - 100 Watt (34272635)
  • Eco - 80 Watt (34272627)
  • Eco - 20 Watt (34273837)

82931 Go Power! Solar Flex Expansion Kit - Flexible Panel - MC4 Branch Connectors - 55 Watts - 2.88 Amps - GP-FLEX-55E

Replaces Go Power 80125REVA

Installation Details 34280125 Installation instructions

California residents: click here

Video of Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel

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 34280125 Review

Speaker 1: Today we're going to take a look at the Go Power 50 Watt Solar Flex Expansion Kit. Now this expansion kit will come with everything you need to expand your Go Power solar flex charging fits, which we do sell separately on our website. This is a flex solar panel that can conform to almost any surface. So it's perfect for RV's and boats. It is lightweight, low profile design, and the panel will allow bending up to 30 degrees. It's a very simple installation.

The expansion system will easily install next to your existing solar panel on your roof. Comes with the included screws. Now this kit will include everything here on the table, one solar panel, the cables that you need, two of the MC four branch connectors and the mounting hardware, and even a nice set of detailed instructions on how to install it.On the solar panel the wattage is 50 watts, maximum power voltage is 17.6 volts. Next from power currant is 2.88 amps. The open circuit voltage is 19 amps.

Short circuit current is 3.04 amps. Maximum system voltage 600 volts BC. A few dimensions on this, the length on it is about 44 and 5/8th inches long. The width on it, gonna be about 11 and 5/16ths, and the depths, since it's flexible, is only about an eighth of an inch, and the weight of it is only about one and a half pounds, but that should do it for the review on the Go Power 50 Watts Solar Flex Expansion Kit. Speaker 2: inaudible 00:01:25-.

Customer Reviews

Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel - 34280125

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)

The Solar Flex expansion kit comes with everything you need to increase the power output of your Go Power solar charging system. The 55-watt flexible solar panel uses MC4 connections and provides DC power to charge your RV's batteries.

- 34280125

Everything about etrailer is great. The product is exactly as expected so no issues there. But the main reason I shop here is the customer service. Thank you as always!

- 34280125

- 34280125


Ask the Experts about this Go Power Accessories and Parts

  • Availability of Go Power Solar Panel for RV that Has Go Power Solar Controller Installed
    While we don't have a 20 watt panel with just the wires (part # 34273837 also includes the controller) we do have the 55 watt expansion kit part # 34280125 which would work really well with your setup. The panel has a higher wattage which just means the controller would have more wattage to work with when charging your batteries and wouldn't damage anything. The dimensions of the panel are 42-1/8" long x 11-5/16" wide x 1/8" deep.
    view full answer...
  • Solar Recommendations for Running a MaxxFan Deluxe Roof Vent While Storing Camper
    The MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote part # MA00-07500K has a maximum draw of 5 amps. If that is running for 12 hours it can draw as much as 60 amps a day. Using the Go Power Eco Solar Charging System with Digital Solar Controller part # 34273837 with the Go Power Solar Flex Expansion Kit - 55 Watt Solar Panel part # 34280125 would be enough to keep the battery from being drained if the fan was used on low only. You would really need the Go Power Portable...
    view full answer...
  • Using Solar Panel to Power Small Fan
    You could wire the # FV01100WH fan directly to a panel if you wanted to, but you'd want to use a panel with a controller that would prevent too much power from going to the device you have the panel hooked up to (the fan, in this case). As you surmised, too much power could damage the fan. The # 34280125 (50 watt) would work well for this purpose. With the panel directly connected to the fan, you'll likely not be pleased with the performance of the fan, the speed and performance would be...
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H

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