Enter the energy density of discharge and the energy density of charge into the Calculator. The calculator will evaluate the Battery Efficiency. 

Battery Efficiency Formula

BE = EDD / EDC * 100

Variables:

  • BE is the Battery Efficiency (%)
  • EDD is the energy density of discharge
  • EDC is the energy density of charge

To calculate Battery Efficiency, divide the energy density of discharge by the energy density of charge, then multiply by 100.

How to Calculate Battery Efficiency?

The following steps outline how to calculate the Battery Efficiency.


  1. First, determine the energy density of discharge. 
  2. Next, determine the energy density of charge. 
  3. Next, gather the formula from above = BE = EDD / EDC * 100.
  4. Finally, calculate the Battery Efficiency.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

energy density of discharge = 40

energy density of charge = 50