Battery Energy Density Calculator

Formula

The formula to calculate the Battery Energy Density is:

\[ BED = \frac{ES}{W} \]

Where:

\( BED \) is the Battery Energy Density (kWh/kg).
\( ES \) is the total energy storage (kWh).
\( W \) is the total weight (kg).

What is Battery Energy Density?

Battery energy density is a measure of how much energy a battery can store relative to its weight. It is typically expressed in kilowatt-hours per kilogram (kWh/kg). Higher energy density means more energy storage for the same weight, which is crucial for applications like electric vehicles and portable electronics.

Example

Let's say you have a battery with a total energy storage (ES) of 50 kWh and a total weight (W) of 500 kg. Using the formula:

\[ BED = \frac{50}{500} = 0.1 \, \text{kWh/kg} \]

So, the battery energy density (BED) would be 0.1 kWh/kg.