look like i am talking to myself again.. LOL
the 20 amp mppt controller can handle two of the large panels being 24 volt. The mppt can handle 545 watts at 24 volts which is some 16 amps.
not sure what all the fuss was about now.
I have 2 - 50 ft sections of 10 awg solar cable on the way and will use some for roof wiring to combiner box and rest for extension card.
When looking at wire size chart with a 3% line loss according to ABYC-E-11 I see a 10 awg is good for the 35 ft I plan to use from large panel to mppt controller on AS for additional power when needed.
the controller will figure out what battery voltage and use higher panel voltage to provide more power to batteries when needed.
thanks for all the help and it seems there is a lot of confusion on this subject i see.
