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