I have two matching AGM 12V 95ah batteries wired in series and looking to charge via a mppt solar charger unit.
should two charge units be used or one that can handle 24V?
Hi Rob!
To avoid imbalance in the system it is better to charge the series with 24V.
Charging every single battery separatly, you have to ensure that every battery receives the same amount of energy. Otherwise you get an imbalance as mentioned above.