Would it be okay to charge four identical 12V batteries in series-parallel, using a 24V charger, as shown?
I am trying to create a 24V battery bank, so naturally I need to connect two 12V batteries in series. I also need a larger capacity than these batteries can supply, so I intend to wire up two more 12V batteries in parallel for a total of four. I have a 24V charger for this battery bank, but will it be able to safely and effectively charge all four of the batteries wired in this configuration?
Best Answer
Charging and discharging batteries in series can lead to voltage imbalance over time. You can read more about it here. To get the most lifetime from your batteries, you can charge them in series but then you should have a charge balancing circuit.