Battery life and size calculator, estimate the capacity of a battery as well as how long it can power a circuit for with this free calculator
Estimate the life of a battery for a given circuit
| Battery Capacity | mAh | |
| Circuit Current | mA | |
| Battery Life | Hours (Maximum) | |
| Battery Life | Hours (Likely) |
For example:
Estimate the required capacity of a battery
| Battery Life | Hours (Maximum) | |
| Circuit Current | mA | |
| Battery capacity | mAh (Minimum) | |
| Battery capacity | mAh (Likely) |
