I'm looking to build a small camera trailer and I've been researching charge controllers and 90% of them require a positive ground which I had never come across before. If I were to do a positive ground on the trailer what would happen if I hitched the trailer to my car which has a negative ground. Doesn't sound good.
Positive Ground MPPT Charge Controller
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You got it backwards, most controllers have Negative bonded to chassis ground. To answer your question if the controller had positive ground and vehicle had negative ground you have Smoke on the Water.MSEE, PE -
Weird because all the ones I look at on amazon are positive ground, I guess they have wrong information on the ads that I look at. For instance https://www.amazon.com/EPEVER-Contro...ppt+controller says positive ground
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