Question Was Asked By - Darren

Charging a Trailer Battery

Question:

My car has an existing 4 pin connector that works fine. Im going to be using a 7 pin adapter to run a pop-up trailer I still need the use of the 4 pin for my utility trailer. My question is...after reading through your Q & A bank, I get the impression that for the Aux power to charge the trailer battery black wirefrom my car to trailer I will require a 10 guage wire with 40 amp cct brkr AND an isolator connected straight to the battery on the car. Is this correct? It seems all relevant posts say that my car battery will drain without the isolator.

asked by: Darren

Product Page this Question was Asked From

Have a question for the experts, click here.