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Connecting Solar Panels to RV ZAMP connections

Connecting Solar Panels to RV ZAMP connectionsHave you been wanting to Connect Solar Panels to RV ZAMP connections. Here is my quick and dirty guide to connecting solar panels to RV ZAMP connections.

Connecting Solar Panels to RV ZAMP connections

We’ve all heard that Solar Ready RVs and Campers, that use ZAMP connections, have to use the ZAMP proprietary solar panel kits. It turns out that while the plugs are SAE plugs, that ZAMP covers the positive terminal of their SAE plugs, instead of the negative terminal like most other companies.

NOTE: Be sure to do your research, for your RV. I am not responsible if you fry your electronics, get shocked, eaten by trolls or for any other mishaps that may occur!

How to connect to ZAMP connections

ZAMP polarity slowed me down for quite some time. I did my research and crawled under my RV tracing the ZAMP plug’s wires. Then I realized that all I needed was a SAE to SAE Extension Cable.

SAE to SAE Extension cable

I cut off one the end of the SAE to SAE Extension Cable, the end with the red wire that ends in the silver terminal. I put this aside for future products, since we don’t need it for this tutorial.

note the red wire is connected to the exposed silver terminal, on this end.

If you cut this cable correctly you should have this portion left. This is the part that we will connect to our solar charge controller.


note the black wire is connected to the exposed silver terminal, on this end.

Connecting the Solar Charge Controller

Be sure to connect your positive and negative wires from your SAE connector to your solar charge controller. Yes, you must use a solar charge controller. “Solar Ready” RVs only have a connector that is wired to your coach batteries, there is nothing else included. If you don’t use a solar charge controller you will mess up your batteries, and other awful things can happen!

Solar charge controller connections

Batteries connect to the battery icon screws, Solar panels connect to the grid or solar panel icon screws.

Solar Panels and Charge Controller AMPS

With a single 100 watt solar panel,  a 10 amp charge controller should be fine. The Renogy Wanderer 10 Amp charge controller was around $30, and has 2 built in USB ports on the underside, for handy mobile device charging.

How do we know that a 100 watt solar panel will generate 10 amps or less? Math: 100 Watts / 17.5 volt Vmp = 5.7 Amps.

Solar panels have short cables, so you may need to add some Solar panel extension cables, to ensure that you can get your panels in the sun.

Once the 100 watt solar panel and the solar charge controller are all connected together, plug in the SAE connection to the ZAMP Solar Ready port and solar power should start to the RV’s batteries.

Mounting Idea

Then I mounted the solar charge controller to a scrap piece of wood, secured the wires to the SAE connector and the solar panels, to avoid them getting pulled easily free. Then I added an eye hook and carabiner on top, to hang the charge controller from one of my storage doors.

I will come up with a better mounting system later on. This is just a portable and fast setup. Later on I’ll put panels on the roof of the RV and mount a charge controller inside.

This is how you can connect to your ZAMP Solar Ready port on your RV.

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  1. Thanks so much!!! Are you an Amazon associate for Ridge Controllers? They make a very good MPPT 20 A controller. Same guts as the Renogy, much better connectors.

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