You could get an upto of 40.96KW capacity, that's, 4 packs of 4 batteries in series in parallel, however, make sure all the batteries you mean to get to work are in the same condition(the same state with the same charging),
So, you could freely set your batteries in series or parallel according to your needs.
12V LiFePO4 Battery 200Ah with 2560W Power Output! Built-in BMS with 5 Protection Function.
What's in the Box:
1 * 12V 200Ah LiFePO4 battery (Random color)
1 * Manual