# how to calculate energy stored in a battery E = V*AH*3600

• ### How do I calculate the capacity of my battery?

• Let’s assume you want to find out the capacity of your battery, knowing its voltage and the energy stored in it. Note down the voltage. In this example, we will take a standard 12V battery. Choose the amount of energy stored in the battery. Let’s say it’s 26.4 Wh. Input these numbers into their respective fields of the battery amp hour calculator.

• ### How do you calculate the energy stored by a battery in joules?

• Science Advisor. If you know the battery voltage V, and the battery capacity AH in amp-hours, the energy stored by the battery in Joules is just E = V*AH*3600, where the 3600 is the number of seconds in an hour.

• ### How much energy is stored in a battery?

• If we want to calculate how much energy – so, in other words, how many watt-hours – are stored in a battery, you need information about the electric charge in the battery. This value is commonly expressed in amp hours – amps (units of electric current) multiplied by hours (units of time).

• ### What is the summation of power over time in batteries?

• The summation of the power over time is the energy supplied. Some energy is dissipated inside the battery as heat, based on its internal resistance. All of the energy supplied by the battery is converted to kinetic energy, potential energy, heat, light, or whatever (not sure what you are asking, specifically).