Battery Capacity Calculator

Formula

The formula to calculate the Battery Capacity (Q) in amp-hours is:

\[ Q = \frac{E}{V} \]

Where:

\( Q \) is the battery capacity in amp-hours
\( E \) is the energy stored in the battery in watt-hours
\( V \) is the voltage of the battery in volts

Battery Capacity Definition

A battery capacity is defined as the total energy storage that a battery can hold. It is typically measured in amp-hours (Ah) and indicates how much current a battery can supply over a specific period. The higher the capacity, the longer the battery can power a device before needing to be recharged.

Example Calculation

Let's assume the following values:

Energy Stored (E) = 240 watt-hours
Voltage (V) = 12 volts

Using the formula to calculate the Battery Capacity:

\[ Q = \frac{240}{12} = 20 \text{ amp-hours} \]

The Battery Capacity is 20 amp-hours.