Battery - Ah to Wh Conversion

Convert battery Amp-hour to Watt-hour capacity for marine DC systems at specific voltage levels - emergency lighting 24 V, main services 110 V, DP 220 V.

BatteryElectricalEnergy

Battery capacityAhNominal voltageV

Energy capacity: 4,800Wh

Energy capacity: 4.800kWh

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

E_{Wh} = C_{Ah} \cdot V

Symbol	Meaning	Unit
$C_{Ah}$	Rated Ah capacity	Ah
$V$	Nominal voltage	V

Source: IEEE 450 / IEEE 1188

In short

Convert battery Amp-hour to Watt-hour capacity for marine DC systems at specific voltage levels - emergency lighting 24 V, main services 110 V, DP 220 V.

Learn the theory Marine Electrical Generation and Distribution