The energy of a battery is the amount of electrical energy that it can deliver when it is discharged. This energy is typically measured in units of joules (J), watt-hours (Wh), or kilowatt-hours (kWh), depending on the application. Energy is a fundamental property of a battery and is directly related to its capacity, voltage, and current output.
In the industry, battery capacity is expressed as Ah (ampere-hours). However, electric charge capacity, which is the value normally specified on a battery label, is different. The capacity of a battery expressed as the amount of electric energy stored in it is more important.
The voltage is a measure of the electrical potential difference between the battery’s positive and negative terminals, while the capacity is a measure of the amount of electrical charge that the battery can store. The energy (E) of a battery can be calculated using the following formula: E = V * C
To calculate the electric energy stored in a battery, multiply the battery’s charge capacity C (in Ampere-hours) with its voltage V. Since the voltage V is always clearly specified, we know how much that is. And the charge capacity C (in Ampere-hours) is also typically specified.
Energy is a fundamental property of a battery and is directly related to its capacity, voltage, and current output. How is the energy of a battery measured? The energy of a battery can be calculated using its voltage and capacity.
This energy is typically measured in units of joules (J), watt-hours (Wh), or kilowatt-hours (kWh), depending on the application. Energy is a fundamental property of a battery and is directly related to its capacity, voltage, and current output. How is the energy of a battery measured?