Battery Life Rechner — Formel
## Battery Life Estimation
### Formula
**Life (hours) = Capacity (mAh) x Efficiency / Load (mA)**
Efficiency accounts for losses from the battery internal resistance, DC-DC conversion, and temperature effects. Typical Li-ion efficiency is 80-90%.
### Formula
**Life (hours) = Capacity (mAh) x Efficiency / Load (mA)**
Efficiency accounts for losses from the battery internal resistance, DC-DC conversion, and temperature effects. Typical Li-ion efficiency is 80-90%.
Lösungsbeispiel
2000 mAh battery, 150 mA load, 85% efficiency.
- Usable capacity = 2000 x 0.85 = 1700 mAh
- Life = 1700 / 150 = 11.3 hours
- Life in days = 11.3 / 24 = 0.47 days