I'm sure this question has been asked and answered many times but I'm still confused.
I have 2 Canadian Solar panels ready to go onto my roof. They are 235 watt with Voc 39.6V, Isc 8.46A. My intention is to hook them up in series to give about 75 volts Voc at 8.46A, wire it to a 40Amp MPPT controller that's about 40 feet distance from the panels and feed the MPPT 12 volt output into 4 x 6 volt FLA batteries arranged in a series/parallel configuration..
My question is, do I calculate the safe amperage capacity of the wire from the solar panels going to the MPPT using the 8.46 amps?
I have used many on line calculators and they often come up with contradictory results, ranging from 12AWG to 02AWG.