Battery Life Calculator
Calculate Battery Life
Formula
Battery Life (hours) = Capacity (mAh) / Consumption (mA).
Frequently Asked Questions
How is battery life calculated?
Battery life in hours = capacity (mAh) / consumption (mA). This is an idealized estimate; real-world battery life is affected by temperature, voltage sag, and discharge efficiency.
What does mAh mean?
mAh stands for milliamp-hours. A 5000 mAh battery can theoretically supply 5000 mA for 1 hour, or 500 mA for 10 hours.