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An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. There are two types of batteries. Primary batteries or disposable batteries, which are designed to be used once and discarded, and secondary batteries or rechargeable batteries, which are designed to be recharged and used multiple times. The life of the battery depends on the capacity rating of battery and consumption device. The Capacity of a battery is defined in terms of Ampere Hour.

Battery life Calculator

Table of Contents:

Formula

**BLT= Capacity of battery / Consumption of the device * 0.70**

This advanced online Battery Life Calculator is used to calculate the life of the battery by applying the formula.

**Example:**

Calculate the battery life for the given details.

Enter the capacity rating of battery: 25 Milli Amp Hours

Enter the consumption of device: 15 Milli Amps

**Solution:**

**Apply Formula:**

BLT= Capacity of battery / Consumption of the device * 0.70

BLT = 25/15*0.70

**BLT = 1.1666 Hours**