Search results

Back on this post Doghead, there is currently no physical ground in the camper besides the - post of the camper battery. What if I used 12v power from the rear - battery routed through a relay to the + of the camper battery, then ran a ground cable from the camper battery - to a - bus in the...

Does that act as an isolator as well? Meaning, it will not charge the 3rd battery unless the engine is running, and also protects the 3rd battery from participating in starting duties?

It's not a trailer (slide in popup) so there is no existing wiring. I'll go ahead and wire it with some heavy gauge battery cable off of the front battery and isolate it.

Just for charging a simple yellow optima.

I'm looking to minimize the work on the LH Alt that charges the front battery and tap into the negative side of the rear battery to get 12v. The goal is to have the rear battery isolated and protected while allowing it to charge a 3rd deep cycle battery in the camper while the truck is running...