Battery Life Calculator - Estimate Device Runtime Easily
Estimate how long your battery-powered device will run. Enter battery capacity and current consumption to get an instant battery life estimate.
This calculator estimates how long a battery will power your device. Simply enter the battery's capacity (in mAh) and the device's current draw (in mA).
The formula is:
\[ \text{Battery Life (hours)} = \frac{\text{Capacity (mAh)}}{\text{Current Draw (mA)}} \]
Real-world factors such as battery aging, discharge efficiency, and temperature may reduce actual battery life.
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Disclaimer: These calculators are provided for informational purposes only. Always verify your designs against relevant engineering standards and consult a qualified professional. We do not take responsibility for any errors or damages resulting from the use of these calculations.