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PowerEngineerLab · TOOL-017

Battery Charging Time Calculator

Estimate charging time from battery capacity, state of charge, charging current, efficiency and taper factor.

01 / Inputs

Battery charging time

02 / Result

Estimated charging time

Waiting for input

Enter battery, state-of-charge and charger assumptions.

Method and boundaries

Charge time = capacity × (target SoC − starting SoC) ÷ (charging current × charging efficiency) × taper factor.

This is a constant-current estimate. The taper factor is an explicit empirical adjustment and does not replace an actual CC/CV charging curve, thermal controls, chemistry limits or BMS behavior.

Method and boundaries

Charge time = capacity × (target SoC − starting SoC) ÷ (charging current × charging efficiency) × taper factor.

This is a constant-current estimate. The taper factor is a user-entered empirical adjustment and does not replace an actual CC/CV charging curve, thermal controls, chemistry limits or BMS behavior. SRC-010 · model 1.0.0 · user-input-v1.