Inverter/house bank wiring
As you can probably tell from my other posts I'm doing some rewiring, moving things around and cleaning up old/non-marine wire. My 3000 watt inverter is wired to the house bank with 4/0 cable. The wires going to the 12 volt house panel (pos) and engine block (neg) are the boat's original 1/0 wire. My question is should the wire all be 4/0? Seems like at least the ground from the batterys to engine block should match the inverter wiring?