Hearing Health Summer 2015 Issue Summer 2015 | Page 3

UNDERSTANDING
YOUR BATTERY
There are many factors that affect how long a hearing aid battery lasts.

Temperature

Battery Size

As temperature is reduced, hearing
aid battery voltage is lowered, which
can reduce battery life.

As the physical size of the battery
decreases the amount of space for the
ingredients needed to power the battery
also decreases. Therefore, the smaller
batteries may have a shorter life.

Degree of
Hearing Loss
Increased amplification is required
with hearing loss severity; this results
in reduced battery life.

%

Humidity

Altitude

Batteries can dry out or take on moisture
depending on the humidity level. Both
outcomes reduce battery life.

Increased altitude results in less
oxygen in the air creating lowered
voltage and reduced battery life.

Noise
The surrounding noise and volume
setting of your hearing aid can both
prematurely drain the battery.

Instrumental
Differences
Features in today’s hearing aids – such as
Bluetooth/wireless streaming and noise cancellation – can reduce battery life 20 to 300 percent

Tips to Meet Your Batteries Expected Life
Since everyone’s definition of a “day” is different be sure to calculate your battery
usage by hour for a more accurate reading.
Store batteries at room temperature in a package or caddy
Do not carry batteries loose in your pocket or purse
Keep track of your battery usage to determine the average time your battery should last
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