Electricity Calculator Group

Batteries Calculators

Plan battery energy, charging, discharge, heat, efficiency, and pack configuration.

Choose the electrical result you need

Battery calculations depend on chemistry, temperature, age, discharge rate, and the limits of the battery management system.

Open the calculator whose primary output matches the decision at hand. Each worksheet shows its formula, loaded example, input definitions, limitations, and related calculations.

Batteries worksheets

Amp-Hour Watt-HourCalculate stored energy for a defined electrical case.Battery Series ParallelCalculate pack energy for a defined electrical case.Battery Bank CapacityCalculate bank capacity for a defined electrical case.Peukert Battery RuntimeCalculate peukert runtime for a defined electrical case.Battery C-RateCalculate discharge C-rate for a defined electrical case.Battery Charging TimeCalculate charging time for a defined electrical case.Battery Charging PowerCalculate charging power for a defined electrical case.Depth of DischargeCalculate depth of discharge for a defined electrical case.Battery State of ChargeCalculate state of charge for a defined electrical case.Battery Energy DensityCalculate volumetric energy density for a defined electrical case.Battery Specific PowerCalculate specific power for a defined electrical case.Battery Internal ResistanceCalculate internal resistance for a defined electrical case.Battery Voltage SagCalculate loaded voltage for a defined electrical case.Battery Heat GenerationCalculate battery heat for a defined electrical case.Battery Round-Trip EfficiencyCalculate round-trip efficiency for a defined electrical case.Battery Self-DischargeCalculate capacity remaining for a defined electrical case.Battery Cycle LifeCalculate estimated service years for a defined electrical case.Battery Capacity FadeCalculate remaining capacity for a defined electrical case.Cell Balancing ResistorCalculate balancing resistor for a defined electrical case.Battery Pack Stored EnergyCalculate pack energy for a defined electrical case.

Use ratings and measurements deliberately

Keep voltage type, current path, frequency, phase arrangement, operating time, and temperature with the result. A value taken from a nameplate may describe a different condition from a meter reading.

These calculators support arithmetic and comparison. They do not replace electrical codes, equipment instructions, qualified design, safe isolation, or test procedures.