Enter the current battery voltage (volts) and the maximum battery voltage (volts) into the Calculator. The calculator will evaluate the Battery Voltage Percentage. 

Battery Voltage Percentage Formula

BVP = CBV / MBV * 100


  • BVP is the Battery Voltage Percentage (%)
  • CBV is the current battery voltage (volts)
  • MBV is the maximum battery voltage (volts)

To calculate the Battery Voltage Percentage, divide the current battery voltage by the maximum battery voltage, then multiply by 100.

How to Calculate Battery Voltage Percentage?

The following steps outline how to calculate the Battery Voltage Percentage.

  1. First, determine the current battery voltage (volts). 
  2. Next, determine the maximum battery voltage (volts). 
  3. Next, gather the formula from above = BVP = CBV / MBV * 100.
  4. Finally, calculate the Battery Voltage Percentage.
  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.

current battery voltage (volts) = 12.5

maximum battery voltage (volts) = 14