2 battery banks, main is 24v and a secondary is 12v. Best setup?
What's the best way to charge a 24v bank and a smaller 12v bank off the same solar array? I've read that you should only have 1 mppt controller per array, so 2 mppt chargers won't work.
I'm looking at the DC-DC chargers for the 12v bank feeding off the 24v bank but they seem to be geared towards alternators, and I don't know how the mppt would like it.