Hearing aid battery

Hearing aid batteries are special button cells designed to provide continuous and reliable power for hearing aids. These batteries typically use zinc-air technology, which draws oxygen from the air for activation, resulting in a compact yet powerful energy source.

Hearing aid batteries are available in several main sizes — such as 10, 13, 312, and 675 — each suitable for different hearing aid models. They are color-coded to make it easier to identify the correct type. To activate the battery, the protective sticker must be removed, and it is recommended to wait a few minutes for the air to enter the cell and reach its operating voltage.

The lifespan of hearing aid batteries largely depends on usage, volume level, humidity, and temperature. Typically, they last between 3 and 22 days, but this varies depending on the device and environmental conditions. When inserting new batteries, it is best to wait a few minutes before turning the device on, as activating too soon may give the impression of a weak or discharged battery.

It is important to use high-quality batteries specifically made for hearing aids and to always check the expiry date on the packaging. Unused batteries should be stored in their original packaging in a dry place, and the battery compartment should be left open overnight or when not in use to allow moisture to escape.

Hearing aid batteries are therefore an essential component of hearing aid performance: using the right type and handling them carefully ensures stable and reliable operation for a long time.