Ok, that makes since now! So in theory, I can rewire the battery cable with the 7 pin 12v wire and the tongue jack together separately with the same 30A self reset breaker and still have tow vehicle charging. And then disconnect the 12v system connection and 20A self reset breaker from the this battery altogether, right?Electrically it does on mine. Mechanically it goes to a junction box and joins the battery wire and the tongue jack at one terminal of a 30A self-reset breaker. Other terminal has the 12v system connection and slide out 20A self-reset circuit breaker.
Thanks for your patience, I'm in learning mode lol