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  1. RV Solar Panels
  2. Go Power
  3. Roof Mounted Solar Kit
  4. 200 Watts
  5. 3 Panels
  6. AGM
  7. Flooded Lead Acid
  8. Gel
  9. Lithium - liFePO4
Go Power Overlander Solar Charging System with Digital Solar Controller - 600 Watt Solar Panels

Go Power Overlander Solar Charging System with Digital Solar Controller - 600 Watt Solar Panels

Item # GP99MR
Our Price: $1,499.93
RV Solar Panels
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This solar charging system helps get you off the grid with a 600-watt solar panel that provides DC power to charge your RV's batteries. Solar controller regulates and monitors power output while preventing harmful overcharging. Great Prices for the best rv solar panels from Go Power. Go Power Overlander Solar Charging System with Digital Solar Controller - 600 Watt Solar Panels part number GP99MR can be ordered online at or call 1-800-940-8924 for expert service.
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Go Power RV Solar Panels - GP99MR

  • Roof Mounted Solar Kit
  • 200 Watts
  • Go Power
  • 3 Panels
  • AGM
  • Flooded Lead Acid
  • Gel
  • Lithium - liFePO4
  • Rigid Panels
  • 10.1 Amps or More
  • 59-1/8L x 26-5/16W Inch

This solar charging system helps get you off the grid with a 600-watt solar panel that provides DC power to charge your RV's batteries. Solar controller regulates and monitors power output while preventing harmful overcharging.


  • Solar system provides an off-grid charging solution
  • (3) 200-Watt monocrystalline solar panels uses sunlight to charge your RV batteries
    • Provides a total of 600 watts of solar energy
    • Made from weatherproof and impact-resistant materials to stand up to the elements
  • 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 3 solar panels, solar controller, MC4 cables, MC4 branch connectors, and installation hardware
    • Inverter (sold separately) provides AC power to run appliances and electronics
    • Adjustable mount kit (sold separately) lets you angle the solar panel for maximum sunlight exposure


  • Application: 12V battery systems
  • Number of solar panels: 3
  • Solar controller input current: 30 amps
  • Solar controller dimensions: 6" wide x 3-7/8" tall x 1-3/8" deep
  • 25-Year limited warranty

go power solar diagram no cable entry plate

If you are an energy-conscious RV owner, the Go Power Overlander solar 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 3 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

go power solar panel

The charging process starts with the solar panels, which install 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 600 watts per hour.

solar cells

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.

go power adjustable arms

An adjustable mount kit (sold separately) can increase your solar panel performance by angling it for maximum sun exposure. This kit replaces the panel's existing brackets and allows it to tilt at 3 different angles. This also improves solar charging during winter months when the sun is lower in the sky.

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

overlander how it installs

The system includes (3) 200-watt solar panels, a 30-amp PWM solar controller, MC4 cables, and all the necessary installation hardware.

  1. Solar Panels: The solar panels install 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. 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: 200 watts
  • Amperage: 9.3 amps
  • Voltage: 20.4V
  • IP rating: IP67
  • MC4 cable length: 25' each
  • Dimensions: 59-1/8" long x 26-5/16" wide x 1-1/2" deep
  • Weight: 26.4 lbs
  • 25-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

76216 Go Power MC4 Output Cable with Male and Female Connectors - 10' Long

82845 Go Power Overlander Solar Charging System with Digital Solar Controller - 200 Watt Solar Panel

82182 Go Power Overlander Expansion Kit - 200 Watt Solar Panel

Installation Details GP99MR Installation instructionsAlternate Instructions GP99MR Installation instructions

Video of Go Power Overlander Solar Charging System with Digital Solar Controller - 600 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 Overlander Solar Charging System Review

Hi, John with etrailer. Hey, if you are looking to go off grid, either on your cabin on a piece of property, or even on an RV like this check out this cool little kit from Go Power. This is the Go Power Overlander solar panel kit. Now the cool thing about this kit is it has everything you need to install this and start charging your RV and keeping it off the grid to keep your batteries powered up. You're gonna have the three solar panels, you're gonna have the wiring. This kit works if you have a solar prep package on your RV or even if you don't.

This one in particular, it did have the solar prep package. If you have a solar prep package you're gonna see the connectors right there. That's the connector plate on top. And it was great. It installed fairly easily once we found where the leads were.

Now as far as power rating goes, we're looking at 570 watts of power out of these three. They're connected in parallel but even with 570 watts, we're talking we have a refrigerator downstairs that's drawing 300 watts and we have all the lights on. You're still charging your batteries on a day like this. You're able to use your refrigerator, use your lighting and still charge your battery bank for the evening. Now these install in any configuration up on your roof.

You know, you just make it work. Wherever you have space you can install these things and that's what we did. We installed two in the front, one in the back so if half the RV's in the shade we're still charging batteries. So this is how it looks up on top. And we got a solar panel down below that's regulating the current and charging our batteries.

Let's go check it out. Now the control panel, you can mount anywhere you like in your RV. We chose right here in the stairwell. It's a nice convenient spot as far as the interior exterior lights are here. We already had the battery cut off down here so it just seemed like a perfect place to put this. I'm trying to block the sun so you can see this. This unit is good for lead acid batteries, the absorbed glass mat, the AGMs even the new lithium iron phosphate batteries which we upgraded our rig here today with 275 amp hour lithium batteries. This can charge two separate battery banks. So we have our two batteries here. That's bank number one. So you could have a totally separate battery bank for auxiliary power or whatever you want and be able to charge both of those at the same time. The display is really nice. It is backlit once you're using it, it'll shut off when you're not using it, but it'll show your current voltage. It'll show currently what you're charging your batteries at right now. So right now it is a sunny day out and we're getting 13.1 amps charging our battery bank right now. It'll also show your battery state of charge. Ours is 100% and it can show you like a history of how many amp hours that you've been charging. In our case it was 35. It sat out yesterday and today. So neat little display. And again, we're using only one battery bank right now. Also, if you're planning on in the evening knowing that you're going to have a lot of usage, one feature I like, it's the max boost feature. You press and hold that for looks like five seconds or so and it will boost the batteries. So say it's twilight or nearing the end of the day and you know that you're gonna be running a bunch of electric items tonight, this will charge and boost your battery bank just to get you through the night. So this kit is pretty neat. It can install, like I said if you have a piece of property you got a cabin that you want to outfit with some power, that's great. Another great option for this kit is an RV like this. Now this is a class C motor home. You may have a class A or even a van or something like that. It really installs fairly easily. And that was a look at Go Power's Overlander solar panel kit.

Customer Reviews

Go Power Overlander Solar Charging System with Digital Solar Controller - 600 Watt Solar Panels - GP99MR

Average Customer Rating:  4.6 out of 5 stars   (53 Customer Reviews)

This solar charging system helps get you off the grid with a 600-watt solar panel that provides DC power to charge your RV's batteries. Solar controller regulates and monitors power output while preventing harmful overcharging.


Easy to install in FR Wilddood FSX 179DBKX with solar ready. Connectors on roof matched what is shipped with this and the charge controller is simple to mount and connect. Hardest part was cutting the hole in the wall for the controller.

While the kit comes with hardware to mount the panel on the roof, I purchased a separate plastic mounts so I can remove the panel without removing the screws in the roof.


I have two of these panels and the solar controller with 4ea 12v 100ah batteries on my houseboat. I power my 120v refrigerator, freezer, and ice maker. During the day there is enough Solar to power all of the devices. I run the generator an hour at night and the batteries stay above 12.4v overnight. As soon as it gets light outside, the panels start sending a charge. Within two hours of full daylight I am running purely on Solar again for the day. Very happy with my purchase.


Came in quickly and was not damaged like large boxes sometimes are.


Easy to install and works great. Just ordered an additional panel to add more power


Great product


I installed 2 100 watt panels they seem to be doing okay I average 13.4 watts of battery power, I have two marine batteries in series I have a residential refrigerator and 12 volt lites all working off solar when needed


Best thing I've added to the trailer. Its like keeping it plugged in all the time. Keeps my batteries charged and conditioned throughout the winter. Installation was easy as my trailer was prewired.


A competitor of yours gave me a 2 week window for delivery. I bought from you and received in 5 days!


Super easy install. Simple instruction. Good beginner package for RV solar.


The advice and assistance received from Jason and Alex was most helpful in installing a Go Power Overlander Solar system on our No Boundary trailer roof rack. Many thanks!


Prefer to give zero stars. My review is not in regards to the product but for & their lack of customer support.

Received damaged product as shown in images. Shipped in factory package with zero additional effort to maintain product integrity. Glass panel inside a cardboard box inside a cardboard box... what could go wrong?

Called to report damage & asked to submit photos. Done & no response. Two days later & 60+ minutes of hold time and get no support other than preprogrammed customer service BS. No one can actually provide info as to when replacement will be sent, why it cannot be expedited as a damaged replacement & inconsistent feedback on what to do with damaged product - I guess I'm on the hook to pay for disposal?

I used to be an ardent supporter of & referred them often. Used to be phenomenal support but now is nothing more than a typical corporate entity... "please hold for the next available service agent who has no idea how to interact with a customer other than reading from the corporate manuscript"


I have had the overlander solar package installed now for 6 months. My Jayco Greyhawk had the go power wires pre installed so the installation was very easy. My only regret was not buying two 190 watt panels. As for 4 star rating, did not have it long enough to justify 5 stars.

I have 2 deep cell lead acid batteries, the instructions are not very clear which to choose, sealed or flooded. Presently selected on flooded type and I think that maybe the controller is overcharging them, due to corrosion on the positive terminal.


The panel keeps us powered when we are boondocking. It also keeps the battery fully charged when we're home so we never have to check it.


The solar kit was exactly as represented in the description. The ability to watch a video of an installation was very helpful even though the installation was not that complicated in our case since our trailer was prewired for it. Be sure to order butyl tape and sealant to make sure the installation is waterproof. Answering questions and prompt delivery is a definite plus for working with etrailer.


I love my Go Power Solar system. Before getting it my coach battery would drain down even though I had everything turned off. Now when I go to the storage yard ,even after a extended period of time, my coach and chassis batteries are at 100%. I recommend the Go Power Overlander Solar Charging System RV Solar Panel.


I love this kit and it is used to keep the coach battery charged and topped off. The panels are installed on the roof (second panel purchased). I also like the Bluetooth monitoring system that hooks to my cell phone. When I'm dry docking, it charges the battery back up after a night of running the Furnas (gas).


Solar Panel works. Everything went well. etrailer is great. So why not 5 stars. The app that comes with the controller is junk. No other too say it. You need the app for some setting resets. I have spent more time on this, than 10 installations. The app actually caused me go with another brand solar panel for my portable one. I wish etrailer carried other brand options. I wrote this after 4 weeks of trying to this figured out, just to make sure I have tried everything I know.


Solar is working as advertised.


We're having the 2 solar panels installed next week.Not as easy on a old motercoach that's not pre-wried for solar - I'll post an update after they are in use!


I love "go power" the second unit that I have installed. It not only charges my house batteries but it also charges my coach battery. The system install is easy and straightforward enough. high quality workmanship and well-thought-out kit. Running the wires was the hard part!


Everything went well with the install. I do think that it should come with leveling sealant. Due to my travel trailer being pre-wired I had wire that I did not need and priced in with the kit. Thanks


Speedy delivery of the item. Have not unpacked the product yet. Plan to use on trailer for extra power. Will install soon.


Super setup. The instructions were very clear and it was relatively easy to install especially if your unit is pre-wired for the Go Power solar. The price was $[XXX] cheaper than the dealer quote for the setup and I save a couple hundred dollars in labor. etrailer gets my vote for excellent service and price.


We installed these solar panels on our 2017 Forest River Sunseeker in June 2019. We love them! We dry camp regularly and never worry about low batteries or running the generator. It is well worth the investment!


Quick shipping arrived in great condition haven't hooked it up to my RV yet but the instructions appear to be pretty straightforward.

Show More Reviews

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

  • Can a 2nd solar panel be added to Go Power Portable Solar Panel to charge 3-100ah Lithium batteries?
    You technically could add a second Go Power Portable Solar Panel with Digital Solar Controller - 200 Watt Solar Panel # 34282610 to power your travel trailer's lithium batteries, however, this would require some custom wiring to the controller as Go Power doesn't sell a kit to make this process quick and easy. The better option would be to upgrade to a system that is more capable of charging your 3-100ah lithium battery bank, and for that I recommend the Go Power Overlander Solar Charging...
    view full answer...
  • How Large Of A Battery Bank Is Needed For The Go Power Overlander Solar Charging System
    Go Power recommends up to one 200 watt solar panel per 100 amp hour battery because it can send more power to the battery than it can handle and will start throwing up error codes on the controller. You would need to use multiple batteries or go with a large one like the Power Sonic RV Lithium Battery # PS74FR, which has a 300 amp hour rating. This battery is pretty big though 20-1/2" long x 10-9/16" wide x 8-3/4" tall so it's most likely not a good option. It's also lithium, which is...
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  • Can 570 Watt Go Power Overlander Solar Charging System Tilt Solar Panels
    There is; all you need is the following mounting kit and you can tilt the solar panels of the 570 watt Go Power Overlander Solar Charging System # GP99MR: - Adjustable Mount Kit # 34244034 This will let you tilt the solar panels up to 75 degrees so when the sun is lower in the sky in the morning or evening, the panels will be able to fully absorb more energy than if they were facing straight up.
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  • Can The Control Panel For the Go Power Solar Charging System Be Placed In Storage Compartment?
    The controller for the Go Power Overlander Solar Charging System # GP99MR must be mounted in in a weatherproof enclosure on your 2019 Jayco Precept 31UL. Typically an area with the propane and batteries will be vented but if you have a nearby compartment the controller can mount that is fine since the controller can Bluetooth to a phone to check operation. If there is no where for it to mount inside a weatherproof compartment I recommend reaching out to Jayco to have this fixed on your...
    view full answer...

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