Calculadora de Vida de Batería Gratis
Estima la duración de una batería dividiendo la capacidad en mAh entre el consumo del dispositivo.
Battery Life
11.3 hours
Battery Life vs Battery Capacity
Fórmula
## 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%.
Ejemplo Resuelto
2000 mAh battery, 150 mA load, 85% efficiency.
- 01Usable capacity = 2000 x 0.85 = 1700 mAh
- 02Life = 1700 / 150 = 11.3 hours
- 03Life in days = 11.3 / 24 = 0.47 days
Preguntas Frecuentes
Why not 100% efficiency?
Internal resistance, voltage regulator losses, and self-discharge reduce usable capacity. Real-world efficiency is typically 80-90%.
Does discharge rate affect capacity?
Yes. Higher discharge rates reduce effective capacity due to Peukert effect, especially in lead-acid batteries.
How do I measure actual load current?
Use a multimeter in series or a USB power meter. Average the current over a typical usage cycle.
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