With my truck camper i have a ground goi g somewhere fir the camper lights. Where should I ground the 12v 70amp charger to avoid ground loop
You should clearly separate the bodywork from the base vehicle!
That means running separate cables for the input and output, and connecting the earth to a proper earthing point instead of routing it somewhere through the frame or via other consumers whose cable sizes are not designed for this purpose!
Do you have a central distribution box? If so, please take some photos of it!
I ran both 1/0 pure copper from truck battery to where the charger will sit then plan to drop to 4awg for 1.5 feet to the battery. Since my camper plug has a separate ground somewhere when I plug the truck to the camper plug and I am using a non isolated charger should I just run the truck ground to the DC charger and have all the other grounds on a common bus bar or run all the grounds to the common bus bar. What actually creates the ground loop in truck campers with non isolated chargers? I am hearing either way is fine and others saying dedicated.
Photos?
Truck camper set up. Single li battery. Will use the non isolated XS 70amp DC to DC. I currently have two 1/0 wires coming from the truck battery to anderson plug, then an anderson plug embedded in the front of my camper. From there again 2 1/0 wires to near my camper battery awaiting final wiring to the DC to DC charger. I have a victron smart shunt. Currently have negatives and positives to blocks, one wire from the battery to shunt and other loads on the other side.
My question to avoid a ground loop how best to utilize my truck battery ground, where to land it since the camper grounds all go to one block and somewhere the camper 7 wire for lights, etc ground somewhere to the truck frame or elsewhere.
Will landing the truck battery ground to the load side of the shunt be ok and then the shunt will read properly. I have also heard to run the camper ground, the truck ground and the victron charger ground to a single post but since my camper battery is going to a block why not just run everything to the shunt load side.
Thanks for advice