In a van setup it is less likely that a particular array will be pointed in the desired direction like "early morning sun" any given day. Using something like a switch that chose one controller over another might be the best approach here if the controllers cannot play together nicely. This...
I greatly appreciate your input cs1234. I've also read that the "competition for PPT" between two MPPT controllers is not an issue if the voltages (hence the PPT) is significantly different between the two banks. I wonder if the 12V would be enou8gh less than the 24volt system that there might...
I am imagining a temperature maintenance solution for a LiFePO4 battery bank in a van to protect them from low temperature charging.
The scenario I am trying to protect the big (for a van, only about 10KWH)24V LiFePO4 battery bank from is one where a van is left parked outside for a few days...