Hearing aid batteries

Hearing aids need specialized batteries to work properly and to make sure your hearing aids don’t get damaged. The following provides you with an overview of the different types and sizes of hearing aid batteries, their lifespan, where to buy them as well as some tips on how to get the best out of them.

Hearing aid battery size

Hearing aid batteries come in various sizes providing different levels of power and battery life. Generally speaking the more significant the hearing loss, the higher the power consumption of the hearing aid and the larger are the batteries needed to deliver that power. 

Another factor influencing the battery size of a hearing aid is the hearing aids own size. Small hearing aids, like in-the-ear hearing aids, need to rely on smaller hearing aid batteries. Invisible in the ear hearing aids use dedicated battery technology to keep their size as small as possible and allow them to be placed deep inside the ear canal while still providing high quality sound.

The most commonly used battery sizes (from smallest to largest) are 10, 312, 13 and 675. They are color-coded for easy identification:

  • size 10: yellow
  • size 312: brown 
  • size 13: orange 
  • size 675: blue

Hearing aid battery types

Hearing aid batteries also come in different types, namely standard zinc air, mercury free and rechargeable. Refer to the FAQ below to learn more about the differences between these types of batteries.

Hearing aid battery life

How long your hearing aid batteries last depends largely on the type of hearing aid, the level of amplification, how long they are turned on and the features you use. Wireless streaming is an especially power-intensive feature of a hearing aid. Other factors that can impact battery life are the type and age of the batteries and whether you are using accessories or not.

Rechargeable Hearing aids

Traditionally hearing aids used to rely on disposable batteries for their power but in recent years rechargeable technology has made massive advancements.

Learn more about rechargeable hearing aids and rechargeable hearing aid batteries here

Where to buy hearing aid batteries

Hearing aids can be purchased at a specialist hearing care provider, but they can also be found online as well as in pharmacies, electronics stores or sometimes even grocery stores.

If you are unsure about what the best hearing aid batteries are for your devices, it would be advisable to speak to a hearing care specialist.

Frequently asked questions