Hi, I'm trying to calculate the needed cable size for 2 x 180ah batteries in parralel.
So the question is should I match the 180ah (power from one to the other) or double it 360ah a wire accordingly. The wiring from the batteries will supply my campervan with 12v 3000ka multiplus along with 12v lights, USB sockets etc. the wiring for these has all ready been installed and is correct to spec. So 70mm x 2 to multiplus.
This last bit I'm finding hard to find the correct information. If you have links to further reading that will help that would also be helpful.