How to Convert Battery Watt-Hours (Wh) to Milliamp-Hours
To convert watt-hours (Wh) to milliamp-hours (mAh), you need the battery''s voltage (V). Use the following formula: Where: Wh is the battery''s energy in watt-hours. V is the battery''s voltage. mAh is the resulting milliamp-hour capacity. Example: If you have a 5 Wh battery with a voltage of 5 volts: