48V Battery Bank Wire Gauge

[stevenforti]

If I'm reading correctly it will be 4/0 from battery terminal to inverter. I have about 3Ft tops from the battery bank to the inverter with a fuse and switch between on the positive and a shunt on the negative.

what about the interconnect cables from battery to battery in the 4 battery bank? Can those be 2/0 ?

thanks