jonwegs wrote:
I tried this and the running lights work, but I now know the smaller gauge hot wire and ground won't charge the camper battery.
There should be enough juice at the 7-way plug to charge your camper battery. It may not charge it as fast as if you had it wired directly with an 8 gage wire, but it should be enough for normal charging.
The problem comes in if you are pulling above "normal" amps. In particular if your are trying to running a 12V frig. For something like that, you will need the 8 gage wire.
Do you have a 12V frig?
Brad