Battery Life Calculator

Battery life is a measure of battery performance and longevity. It refers to the amount of time that a device could run before it needs to be recharged. This calculator calculates the estimated life of a battery.

Enter the Battery capacity and the Current Consumption to calculate the estimated life of the Battery


  • Battery Life
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A battery is a power source consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars.

Battery capacity is typically measured in Amp-hours (Ah) or milliamp-hours (mAh), although Watt-hours (Wh) are occasionally used. 

An Amp-hour (Ampere-hour, Ah), is a measure of charge and refers to current flow over time. 

1 Ah = 1 A of continuous current flow for one hour. 

1000 mAh = 1 Ah