Estimate battery life from capacity and current draw. Model duty-cycled devices (sleep / wake / transmit) to get the true average current, with capacity derating and self-discharge.
Battery
Load
| State | Current (A) | Duration per cycle | Time | Energy share | |
|---|---|---|---|---|---|
| 99.2 % | 1.9 % | ||||
| 0.667 % | 20.6 % | ||||
| 0.167 % | 77.4 % |
Cycle period: 60 s Average current: 258.3 ยตA
Estimated battery life
8.4 months
6102 hours
Without self-discharge
10.6 months
Average power
774.9 ยตW
Energy: 6 Wh usable
Life โ (capacity ร usable %) / (average current + self-discharge). Real batteries deliver less capacity at high currents, low temperatures, and near cutoff voltage โ the derating slider accounts for this. Typical self-discharge: Li primary <1 %, alkaline ~2 %, Li-ion ~2โ3 %, NiMH 15โ30 %/month.