Array ( [name] => WHConversion [title] => WhConversion [content] =>
Most electronic devices state their battery life as 'mAh' (milliamp hour) rather than 'Wh' (watt hour). To calculate the Wh rating of a battery you multiply the mAh by the voltage before dividing by 1000.
e.g. a 2000mAh 5V battery provides 10Wh ((2000 x 5) / 1000 = 10)