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UNDER DEVELOPMENT - This calculator will determine how long a system can operate off of a single battery before replacement or recharge.
Inputs
Capacity Rating of Battery
mAH
Consumption of device (Load Current)
mA
Output
Battery Life
Given the battery capacity and load current, it is relatively easy to calculate battery life. We simply divide the battery capacity by the current draw of the load:
$$B_l = \frac{B_c}{I_l}$$
where:
- Bl = Battery lifetime in hours
- Bc = Battery capacity in Ah (ampere-hours)
- Il = Load current draw in A (amps)
Ampere-hours (Ah) are a unit of measurement for battery capacity. They indicate how much current a battery can store and deliver over time.
This calculator allows you to easily select different units of measurement for each of the three parameters:
- Bl = Battery lifetime in days, hours, or hours
- Bc = Battery capacity in kAh, Ah, or mAh
- Il = Load current draw in kA, A, or mA
