Will Trailer 7-Way Charge Line for Trailer and Camper Battery Affect Alternator

Question:

I have an 86 Chevy C30 dual cab dually. I have installed a new GM HT502 crate engine with a BandM Traveller TH400 transmission and a Hughes extreme towing converter. I have recently bought a 05 Lance 981 in bed camper. I am looking to tow my racecar simple open race trailer, racecar weighs 3k lbs, trailer probably 2-3K lbs, bumper pull. 2 axle with brakes, I am not sure the tongue weight but I cant lift it with the camper installed. The truck has an old brake controller that is tapped into the brake line and I assume it works. I have a 7 pin connector in the bed for use with a previously installed 5th wheel. I will probably use this one for the camper however Ill need to install a second one for the trailer. Which brings up a good point how do i have two batteries being charged trailer and camper plus the truck battery without causing the truck battery from going dead. The camper came with a hitch extender however I have looked on the internet and not seen one like this one. It has three 2 square steel tubes like to go into a receiver welded together in like the shape of E. I am assuming the previous owner had welded 2 additional receivers to his hitch to use this. I dont have a receiver hitch on the truck I was looking at the BandW BWHDRH25198 hitch. I have no idea on what weight distribution system I would need.

asked by: Kenneth S

Expert Reply:

The wire that will carry the 12 volt power circuit from your truck battery to the camper and trailer battery will be small enough you wouldn't be putting too heavy of a charge on either battery to really tax your alernator enough to prevent charging the truck battery. The charge on those two batteries would be at most a maintenance charge and would not top of a dead or depleted battery.

We do not have any triple hitch setups at this time.

expert reply by: Jameson C