If you are buying all new panels that would be fine the out back will drop the voltage down to 12 volt .Sooooo now I need to find 2 panels. Dad was going to get them at Tesla in Fremont, CA, which is near his house, but can’t now. I see the Hanwha Q Cell is Tesla’s label, I think, but I only see 325 watt and 450 watt. I’m guessing that’s a bad idea with keeping our system 12v for now?
I use 295watt q cells and the panel voltage is 123 volts for the string and in the pic I’m getting in 96.6 volts and I’m charging at 55.6 .
I think you can make up strings of different panels , as long as both strings are the same and you don’t go over 150volts , cold weather raises panel voltage , my area can get down to - 29o f so my voltage can’t be above 125ish
because at -29 the voltage can see over 150 vs and burn up the charge controler
im sure filter guy could help with this ?