Reference Designer Calculators

Battery Life Calculator

The Capacity of a battery is defines in terms of Ampere Hour. The Ampere Hour is defined as the number of hours a battery would last if it takes one Ampere of current. So, if a battery has 10 Ampere hour rating, it will last for 10 hours if it takes 1 Amperes of current. A 10 Ampere Hour battery will last 5 hours if it takes 2 Amperes of cuurrent.

The Calculator provides how long a battery will last. Here is the formula.

Battery Life = Ampere Hours / Current ( Ampere)

Battery Capacity Ampere Hour
Current Ampere
  ( in Hours )

You may also like to check Watt Hour Vs Ampere Hour if the battery capacity has been defined as Watt Hour.

We strongly suggest that you check the following tutorial about Battery Life and its calculations.