Enter the total battery capacity (amp hours) and the power usage (watts) into the calculator to determine the hearing aid battery life.

Hearing Aid Battery Life Formula

The following formula is used to calculate a Hearing Aid Battery Life.

HABL = 10 * BC / P

  • Where HABL is the Hearing Aid Battery Life (hrs)
  • BC is the battery capacity (amp hours)
  • P is the power consumption (watts)

To calculate the Hearing Aid Battery Life, multiply the batter capacity by 10 and then divide by the power.

What is Hearing Aid Battery Life?


A Hearing Aid Battery Life is the total time that a hearing aid can run without needing to be charged.

How to calculate Hearing Aid Battery Life?

Example Problem:

The following example outlines the step-by-step process to calculating a Hearing Aid Battery Life.

First, determine the battery capacity. In this example, the battery capacity is 20 amp-hours.

Next, determine the battery consumption power. In this case, the consumption rate is 10 watts.

Finally, calculate the Hearing Aid Battery Life using the formula above:

HABL = 10 * BC / P

HABL = 10* 20 /10

HABL = 20 hours