Lithium Battery Pack Series & Parallel Calculator

Calculate overall battery pack voltage, capacity (Ah), total energy (Wh / kWh), peak discharge current, and recommended BMS rating for S/P series-parallel configurations.

Battery Pack Results

Pack Configuration ( cells)
Nominal Voltage V
Full Charge Voltage V
Cutoff Voltage V
Total Capacity Cpack Ah
Total Energy Epack Wh ( kWh)
Max Cont. Discharge Current A
Max Power Output Pmax kW
Rec. BMS Rating A

Formulas

Nominal Voltage: Vpack = S × Vcell

Capacity: Cpack = P × Ccell

Energy Wh: E (Wh) = Vpack × Cpack

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