i want to run dual batteries with dual gauges. so i would have to have an isolator switch to keep the readings seperate, correct?
going to mount them ,one each behind the seats so i can acsess them by putting seat forward.
is it better to have many little wires or a few really thick wires .

?
also im having problems finding a 6 volt dry cell battery? i need one so i can weld at 30v.
thanks