Having trouble?
Go to tutorial
📝 How it works:
Calculate battery and rechargeable battery life from capacity (mAh/Ah), current draw and usable factor. Result in hours and days.
Fill in the fields below and click "Calculate".
Calculate battery and rechargeable battery life from capacity (mAh/Ah), current draw and usable factor. Result in hours and days.
Fill in the fields below and click "Calculate".
The runtime is the usable charge divided by the current draw: t = (capacity · usable factor) / current. The usable factor (default 85 %) accounts for converter losses and usable depth of discharge. Real values deviate due to the Peukert effect, self-discharge, temperature and ageing.
Advertisement
