So if I charged all day with solar at 24 and the batts in series at 24, but had the rig on one of the batts at 12, then I would need to put the batts in parallel (say after supper till after breakfast--solar disconnected) so they would even up?
I could also swap which batt is being drawn upon at some half way point during the day.
( I am dreaming up an emergency scenario where I have to use my 230w 24v panel with my 12/24 PWM solar controller. That would need the batts at 24v to do a recharge, but I still want some 12v for the rig during the day. )