02-03-2019, 12:18 PM
Ideally you have the same resistance along each string of batteries and connections to controller/inverter/etc. That way they charge and discharge evenly.
If your batteries are in parallel like this:
Then I would connect controllers/inverters/loads to a & d, and then periodically (say whenever you clean your contacts every few months) switch to c & b.
If your batteries are in parallel like this:
Code:
a (-)battery1(+) b
| |
c (-)battery2(+) d