Calculate the power a battery can deliver and the C-rate that implies.
Battery power capability is set by the C-rate limit, which is independent of energy capacity. A bank can hold plenty of energy yet be unable to deliver the required power. Power-limited applications such as EV charging or welding often need a larger bank than the energy requirement alone suggests.
Battery Power
Maximum power = capacity × C-rate × voltage
Maximum power = capacity × C-rate × voltage Battery power capability is set by the C-rate limit, which is independent of energy capacity. A bank can hold plenty of energy yet be unable to deliver the required power.
Power-limited applications such as EV charging or welding often need a larger bank than the energy requirement alone suggests.
This calculator takes 4 inputs: Capacity, Nominal voltage, Maximum continuous C-rate, Desired output power. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.