I wired my truck camper up to plug into the factory 7-pin for battery charging when I'm on the road. This year I want to tow a small boat as well, but this one plugged into the flat 4 under the bumper. Will it cause any problems if I have the camper and boat plugged in at the same time? The camper also uses the marker light circuit. Thanks.

 

That is a good question I know the wires going back that are not every big even the battery charging one is like 14 gauge.
I put a silonoid in the charging wire so the Camper will not draw the truck batterys down when not running.
I know that some of the older Dodges had relays in the back for the trailer plugs and the Jeep are real bad for small wires.
I hope someone can help us.

 

I can’t see where this would be problem, but just to clarify we are talking a cab over camper. And a boat trailer hooked to the receiver hitch?

If that is right them I would go ahead. OH watch your GVWR.