How to connect an additional single 12V battery to the 2x12 V = 24V battery system for an Inverter - Quora
![Charging 12V batteries in series-parallel using a 24V charger - Electrical Engineering Stack Exchange Charging 12V batteries in series-parallel using a 24V charger - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/upOUj.jpg)
Charging 12V batteries in series-parallel using a 24V charger - Electrical Engineering Stack Exchange
![Charging 24V Battery with 12V Alternator and Isolator - Motor Vehicle Maintenance & Repair Stack Exchange Charging 24V Battery with 12V Alternator and Isolator - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/muVml.jpg)
Charging 24V Battery with 12V Alternator and Isolator - Motor Vehicle Maintenance & Repair Stack Exchange
![how to connect batteries in series and parallel to get the right system voltage and amperage capacity. how to connect batteries in series and parallel to get the right system voltage and amperage capacity.](http://www.solarray.com/Images/ImagesTGuides/drawings/BATTER~4.gif)