Hooking up solar panels through 7 pin trailer connection

RayJim · January 7

Has anyone used this adapter to connect your trailer batteries with solar panels?

Image: https://us.v-cdn.net/5021717/uploads/editor/h1/ry086oswpk0u.jpeg

Ikanizer · January 7

I made my own and it works fine. I plug it into the suitcase solar panel controller which provides a convenient place to plug in the Starlink mini. The power wiring between the 7 pin connector and the battery is 10 AWG. 2023 400.

AnOldUR · January 7

It will work as an easy, less efficient alternative to buying a panel without an onboard controller and adding a solar port so that you can mount the controller close to the battery.

pthomas745 · January 7

This sort of thing was brought up in the Forums back in 2018, with the "Anyone Carry a Spare Battery" thread. I still have mine that I can use with my portable solar panel. With the proper adapters, you can plug a "spare" battery into the 7 pin and power the trailer if you wanted. (With the trailer battery switch off). I still have mine and use it from time to time. The threads and comments below show the original idea.

https://tab-rv.vanillacommunity.com/discussion/comment/95399/#Comment_95399

tphaggerty · January 9

Made one as well. Don't use it much as I put an SAE port where the old battery box vent is on the 2018 400. Worked fine, just a bit clunky.

Hooking up solar panels through 7 pin trailer connection

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