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Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel

Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel

Item # 34273837
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Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel Rigid Panels 34273837
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Using a 20-watt solar panel and solar controller, this charging system provides an extra boost to your RV batteries while you're on the road. Controller regulates and monitors power output while preventing harmful overcharging. Lowest Prices for the best rv solar panels from Go Power. Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel part number 34273837 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Go Power RV Solar Panels - 34273837

  • Go Power
  • 1 Panel
  • Roof Mounted Solar Kit
  • 20 Watts
  • Rigid Panels

Using a 20-watt solar panel and solar controller, this charging system provides an extra boost to your RV batteries while you're on the road. Controller regulates and monitors power output while preventing harmful overcharging.


  • Solar charging system provides DC power to trickle charge your RV's batteries
  • 20-Watt solar panel and solar controller use sunlight to trickle charge your RV's batteries
    • Panel installs on your RV's roof and converts sunlight into safe, renewable DC power
    • Controller mounts in your RV and monitors power output to prevent harmful overcharging
  • USB port on solar controller provides an outlet to charge small electronic devices
  • Lightweight yet durable solar panel is made from weatherproof and impact resistant materials
    • Monocrystalline solar cells set behind tempered solar glass withstand hail and light debris
    • Anodized aluminum frame protects against rust and corrosion
  • Kit includes single solar panel, solar controller, MC4 cables, and all installation hardware


  • Application: 12V battery systems
  • Number of solar panels: 1
  • Solar panel wattage: 20 watts
  • Solar controller input current: 10 amps

go power solar diagram no cable entry plate

If you are an energy-conscious RV owner, the Go Power Eco solar charging system provides clean, renewable power and a way to trickle charge your batteries while you are on the road. This kit comes with everything you need to charge your RV batteries with sunlight. Using a solar panel, 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

eco panel

The charging process starts with the solar panel, which installs on the roof of your RV. When solar energy interacts with the silicon cells in the 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 this panel more efficient than one with polycrystalline cells. And in optimal sunlight conditions, the panel produces 20 watts per hour.

eco panel close

The silicon cells are set between a cushioned backing material and tempered solar glass to withstand the elements. The glass has low-iron content to provide exceptional transparency, which ensures maximum sunlight collection. Finally, the panel is framed with anodized marine-grade aluminum to resist rust and corrosion.

Charging and Protecting RV Battery Bank

solar controller 10 amp

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.

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.

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

eco 20 how it installs

The system includes a 20-watt solar panel, a 10-amp PWM solar controller, MC4 cables, and all the necessary installation hardware.

  1. Solar Panel: The solar panel installs anywhere on your RV roof with included mounting feet and 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. It is wired to the solar panel using MC4 cables. Then, the battery bank is wired to the terminals on the controller. You can also install a fuse or circuit breaker (sold separately) up to 10 amps 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: 20 watts
  • Amperage: 1.14 amps
  • Voltage: 17.5V
  • IP rating: IP67
  • MC4 cable length: 25' each
  • Dimensions: 13-9/16" long x 18-1/2" wide x 1" deep
  • Weight: 3.97 lbs each
  • 10-Year limited warranty

Solar controller:

  • Maximum input current: 10 amps
  • Maximum input voltage: 28V
  • Operating temperature range: -40 F to 185 F
  • Temperature compensation: -13mV per F
  • Maximum wire gauge: #4 AWG
  • Dimensions: 5-7/8" wide x 3-7/8" long x 1-1/4" deep
  • Weight: 0.58 lbs
  • 5-Year warranty

73837REVA Go Power! Eco Solar Kit - RV Solar Charging - Rigid Panel - 10-Amp Digital Regulator/Controller - 20 Watts - 1.14 Amps - GP-ECO-20

Replaces Go Power 73837

34273837 Installation InstructionsInstallation Details 34273837 Installation instructions

California residents: click here

Video of Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel

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

Video Transcript for Review of Go Power RV Solar Panels - Roof Mounted Solar Kit - 34273837

Customer Reviews

Go Power Eco Solar Charging System with Digital Solar Controller - 20 Watt Solar Panel - 34273837

Average Customer Rating:  5.0 out of 5 stars   (8 Customer Reviews)

Using a 20-watt solar panel and solar controller, this charging system provides an extra boost to your RV batteries while you're on the road. Controller regulates and monitors power output while preventing harmful overcharging.

- 34273837

Hey! This little solar panel kit was exactly what I needed. I put together a bicycle trailer for my upcoming recumbent tricycle tour (this Spring). This little 20 watt panel will help me keep my battery charged during the ride. Product is sturdy and well constructed. Coupled with a solar charger/boost controller this panel delivers all the power I need. Glad I bought. 726875

- 34273837

Good product. 721416

- 34273837

Always a pleasure dealing with your company, great prices, great service and fast delivery! I recommend you highly! 718016

- 34273837

Great products and great people. When riding hours with my girlfriends etrailer and their good self help articles are fondly described. This is our go to place for horse living quarters products. 693235

- 34273836

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

I received product havent had time to install it on my rig...will advise.. 733919

- 34273836

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

My order was shipped and received a very timely fashion and it looks like a good product 727066

- 34273836

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

ALWAYS 718297

- 34273836

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

works great for my car trailer charges the battery for the winch 703246


Ask the Experts about this Go Power RV Solar Panels

  • Using Generators to Power RV At High Altitudes
    When you get to higher elevations (typically right in the range where you recently camped - 6,000 to 8,000 feet above sea level) generators do have a tougher time running efficiently due to a few factors but mainly because the lower oxygen density requires more airflow for the mix of air and fuel. Many generators are indeed compatible with separate "high altitude" kits that allow them to run to the best of their ability in this environment. We don't currently carry Yamaha generators...
    view full answer...
  • Is There a Solar Panel Starter Kit for a 14x10 Trailer
    The 20 Watt Go Power Eco Solar Charging System with Digital Solar Controller # 34273837 that you were looking at along with the Mounting Kit # 34272708 is a decent place to start when it comes to solar panel kits but depending on what you're needing it for this might not even be effective. This kit is good to help provide a maintenance charge to a battery on your trailer or to help give a boost to the amount of power coming from a battery charger, but if you're needing it for something...
    view full answer...
  • Can Another Panel Be Added To the Go Power 20 Watt Eco Solar Charging System
    The Go Power Eco Solar Charging System with Digital Solar Controller part # 34273837 comes with a charge controller rated at 10 amps or 170 watts. The included solar panel only provides 1.14 amps or 20 watts so that means you will have 8.86 amps remaining which is plenty for a 100 watt panel. That said, we don't offer the panels separately so your best option is to obtain the Go Power Solar Flex Charging System with Digital Solar Controller part # 34272630 and add your 20 watt panel to...
    view full answer...
  • Recommended Solar Panel to Maintain Two Group 27 Batteries in Storage
    In order to keep the two group 27 batteries on your 2016 Jayco Trailer maintained while in storage I recommend using the Go Power Eco Solar Kit part # 34273837. This kit will provide your batteries with up to a 1.14 amp maximum power current which will be plenty for a maintenance charge. The best feature of this kit is the digital controller which allows you to monitor the condition of your batteries and prevents them from overcharging. I have attached a review video for you as well.
    view full answer...
  • How Tow Keep Trailer Battery Charged While In Storage
    If you just need a solar panel to keep your battery charged while in storage then the Solar Battery Charger part # PTW2997 will be perfect for this and you don't have to worry about overcharging either. I am not sure what you mean by using the battery to keep them on but the above will not draw any power from your battery. If you want something to actually provide a charge when you are actively using the battery then you can use the Go Power Eco Solar Charging System with Digital Solar...
    view full answer...
  • Can Go Power 10 Watt Eco Solar Charging System be Connected to More Than 1 Snowmobile Battery
    The Go Power Eco Solar Charging System # 34273836 can be connected to more than 1 snowmobile battery but you would need to make sure that your batteries are connected in parallel so that the voltage of the batteries don't change. This solar panel kit only provides a trickle charge so you need to make sure that your batteries are completely charged prior to hooking this up via a charger/maintainer like the NOCO # 329-G4 which allows you to connect up to 4 individual batteries to it. It...
    view full answer...
  • Recommended Solar Panel for Maintaining Trailer Batteries While In Storage
    Using a solar panel to help keep the batteries charged on your trailer while it's in storage is a great idea. You are right that you will just need a panel and some kind of controller to prevent overcharge. I recommend taking a look at the Go Power Eco Solar Charging System # 34273837 which includes both of these components. The 20-Watt panel along with the solar controller will use sunlight to trickle charge the batteries and regulate the current flow to prevent overcharging. The panel...
    view full answer...
  • Solar Charger Options for Battery Bank with 6 Batteries on Charger
    Since you have so many batteries to charge I'd go with a kit that has more charging potential like the Go Power Eco Solar Charging System with Digital Solar Controller # 34273837 that is rated for 20 watts charging. While this won't fully charge 6 depleted batteries it would do a much better job than a 2.5 watt charger. The solar panel is then 18-1/2" long x 13-9/16" wide x 1" deep. For a 100 watt solar panel setup we have the part # 34272635 which has dimensions of 47-1/16" long x...
    view full answer...
  • Solar Kit for RV Roof For Maintenance Charge for Group 24/27 Batteries
    Group 24 batteries are between 70 and 85 amp hour batteries and Group 27 are between 85 and 105 amp hour batteries. A maintenance charge on a battery would only require a couple amps to keep the batteries topped off so a 20 watt kit like the # 34273837 would easily keep the battery topped off. This would provide 1.65 amps to the battery. If you think the battery will be depleted at any point before storage a higher rated charger would do a better job bringing the battery back from this...
    view full answer...
  • How Much Power Will the Go Power Eco Solar Charging System Put Out On a Cloudy Day
    As a general rule, you can still get up to 25% of the solar panel's output on a cloudy day so not all is lost. In regards to the Go Power 20 Watt Eco Solar Charging System part # 34273837 that will drop you down to about .28 amps. The next size up is the Go Power 80 Watt Eco Solar Charging System part # 34272627 which will give you up to 1.08 amps on a cloudy day.
    view full answer...
  • Wire Guage that Comes with Go Power Eco Solar Charging System # 34273837
    The double bonded wire that attaches to the panel of the Go Power Eco Solar Charging System # 34273837 is 14 gauge and the other two included wires are 10 gauge. The controller can accept a max gauge of 4 AWG.
    view full answer...

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Info for this part was:

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

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