Originally posted by import6666
I have a big system in my car and I want to run an auxilary battery that would get charged by the alternator but would be isolated from the main battery (not connected to it).
I am not exactly sure how to do this but I think I am supposed to connect the ground going to the main battery to the backup battery. Am I right or is there another way of hooking this up?
This probably isn't the correct place to post this but this section gets the most exposure to the public. Can anybody help?
instead of running a battery cable all the way from the hood to the trunk, y dont you just ground out the extra bettery to the body? find a good sized bolt, get some sandpaper, and ground out somewhere to the trunk to complete the circuit. and invest in fuses.... fuses are always a good thing
china