I'm planning my 12v RV set up and wanting to go with +- 300 watt panels because of limited roof space. I've come across the REC Solar 365 watt mono panels that Northern Arizona Wind and Sun offer. My MPPT victron controller will be the SmartSolar MPPT 150/100 Tr. I read that its optimal to have a solar array voltage between 32v and 35v for 12 volt batteries. With these four 364w panels wired in parallel, I'll be sitting at 40.9volts. I was talking to another company (but didn't use them bc a customer had purchased all their panels that I was interested in that morning), and he said that the +- 40v is too much and will stress out my MPPT if I'm only working with a 12v system. But that doesn't seem to coincide with victron's sizing calculator.
Any helpful/directional input would be greatly appreciated.
Any helpful/directional input would be greatly appreciated.