Building your own home battery is relatively simple and will end up costing between 1/3 and 1/2 of what it normally costs to purchase a fully assembled home battery.
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Recommended JK BMS settings
LiFePO Cell Datasheets
Datasheet for CORNEX 314Ah Grade A LiFePO Cell
Datasheet for DESAY 314Ah Grade A LiFePO Cell
Datasheet for Trina 314Ah Grade A LiFePO Cell