Battery Life Calculator
Output
Understanding the Battery Life Calculator
The Battery Life Calculator helps estimate how long a battery will last based on its capacity and the current draw of the device it powers. This is essential for designing and selecting batteries for portable electronic devices to ensure they can operate for the desired duration.
The formula used is:
Battery Life (hours) = Battery Capacity / Current Draw
Examples:
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Example 1:
- Battery Capacity: 2000 mAh
- Current Draw: 500 mA
Calculation:
- Battery Life = 2000 mAh ÷ 500 mA = 4 hours
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Example 2:
- Battery Capacity: 1.5 Ah
- Current Draw: 250 mA
Calculation:
- Convert 250 mA to A: 250 mA × 0.001 = 0.25 A
- Battery Life = 1.5 Ah ÷ 0.25 A = 6 hours