Calculadora de Vida Útil da Bateria — Formula

## 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%.

Exemplo Resolvido

2000 mAh battery, 150 mA load, 85% efficiency.

  1. Usable capacity = 2000 x 0.85 = 1700 mAh
  2. Life = 1700 / 150 = 11.3 hours
  3. Life in days = 11.3 / 24 = 0.47 days