How we can help
Hearing aids batteries stage image.

Hearing aid batteries

Hearing aid batteries are almost as important as the hearing aid itself.
Book an appointment

Hearing Aid Batteries: Size and Information

Hearing aid batteries are an essential part of your hearing aids. Without batteries, your hearing aids won't be powered and won't work. There are different types and sizes of batteries that are used for different models of hearing aids.

Batteries for hearing aids are much smaller than typical batteries by necessity. That's because hearing aids are very small devices. Despite their size, hearing aid batteries are able to power very technologically advanced hearing aids.

Choosing size

Hearing Aid Battery Sizes

There are four different battery sizes that you can get for your hearing aids. The size is helpfully indicated by colour coding across all brands and hearing aids. The reason why there are different sizes of batteries is because of the different types of hearing aids.

Larger and more powerful hearing aids, such as Behind-The-Ear hearing aids, require larger batteries. Smaller hearing aids, like In-The-Ear hearing aids, need smaller batteries so the hearing aid can still fit in your ear.

Batteries hearing aids

Size 10 - Yellow

Yellow size 10 hearing aid batteries are the smallest battery size at 5.8mm x 3.6mm. They are meant for smaller, less powerful hearing aid models:

  • Receiver-ln-The-Ear (RITE) hearing aids
  • Completely-ln-Canal (CIC) hearing aids

Due to their smaller size they also have the shortest battery life. One size 10 battery will last around 3 to 5 days, depending on the daily hours of use.

Batteries size 312 brown.

Size 312 - Brown

Brown size 312 hearing aid batteries are the second smallest size at 7.9 mm x 3.6 mm. They are meant for small to medium sized hearing aids:

  • Mini Behind-The-Ear (BTE) hearing aids
  • Receiver-ln-The-Ear (RITE) hearing aids
  • In-The-Canal (ITC) hearing aids

One size 312 battery will normally last for around 7 to 10 days.

Batteries size 13 orange.

Size 13 - Orange

Orange size 13 hearing aid batteries fall in the medium range a 7.9mm x 5.4mm. They will fit medium to larger sized hearing aids:

  • Behind-The-Ear (BTE) hearing aids
  • Receiver-ln-Canal (RIC) hearing aids
  • Some ITE hearing aids

One size 13 battery will typically last 10 to 14 days.

Batteries size 675 blue.

Size 675 - Blue

Blue size 675 hearing aid batteries are the largest size at 1 1.6mm x 5.4mm. They will typically only fit larger sized, more powerful hearing aids:

  • Behind-The-Ear (BTE) hearing aids
  • Receiver-ln-Canal (RIC) hearing aids

One size 675 battery will typically last up to three weeks.

Battery Care

Safely caring for your hearing aid batteries

Handling and storing hearing aid batteries properly extends their life and prevents damage to the aids:

  • Store batteries in a safe, room-temperature location.
  • Avoid hot, humid areas and do not refrigerate.
  • Wash hands before touching batteries to prevent contamination.
  • Keep batteries away from metal objects.
  • Remove dead batteries promptly to avoid corrosion.
  • Clean your hearing aids regularly for optimal performance.
In store photography RetailWSA
In-store photography RetailWSA
Extend battery life

Extending the life of your hearing aid battery

To maximize hearing aid battery life:

  • Keep battery doors open when not in use.
  • Remove labels only before use.
  • Use a dehumidifier overnight for your hearing aids.
  • Avoid expired batteries; purchase what you'll use timely.
  • Use older batteries first to prevent expiry.
The two types of Hearing Aid Batteries

Hearing Aid Battery Types

There are two types of hearing aid batteries: disposable zinc air batteries and rechargeable batteries. There are pros and cons for each.

Disposable Zinc Air Batteries

Disposable zinc air batteries are made for one-time use. After the power runs out, you need to replace and dispose of them. You should never just throw out used hearing aid batteries in the garbage, as they are bad for the environment. Instead, you can drop them off at our clinics when you pick up new battery packs as part of our free exchange program. We make sure the batteries are properly recycled.
Hearing aids batteries stage image.


  • Most hearing aid models are meant to use disposable batteries.
  • They are easy to use and don't require any recharging station.


  • They aren't as environmentally friendly.
  • You will need to constantly buy replacement batteries and dispose of used ones.

Rechargeable Lithium-ion Hearing Aid Batteries

Rechargeable technology is becoming more popular, but typically the batteries are not removable from the hearing aid unit. Instead of removing batteries to recharge them, you simply place the entire hearing aid in the charging station.

Lithium-ion batteries are great because they have a long shelf life. You can recharge and reuse them for a long time before needing to replace them with new batteries.

Rechargeable hearing aids in case.


  • No need to frequently buy replacements.
  • More environmentally friendly.


  • Battery replacement needs to be done by the manufacturer.
Replacing Batteries

Replacing Hearing Aid Batteries

  • You'll hear a warning sound when the battery is low.
  • Place the battery and hearing aid on a clean, flat surface.
  • Remove the battery's label and wait a few minutes before use; it's on the shiny, positive side.
  • Start using the battery immediately after removing the label to prevent power loss.
  • Store used batteries in a container to return to our clinic.

Instructions vary by hearing aid type; contact your clinic for help or watch our video guides for BTE and ITE models:

Disposing and donating

Disposing and donating of hearing aid batteries

When replacing hearing aid batteries:

  • Safely dispose of used ones, as throwing them away may be illegal.
  • Store used batteries in a sealed container to prevent loss or accidental ingestion.
  • Bring old batteries to our clinic for eco-friendly recycling when getting new ones.

We accept donations of unused hearing aid batteries at our clinics for clients in need, whether due to discontinued use or a loved one's passing.

Friends out hiking.
Wearing a hearing aid gives you a whole new life interacting with your surroundings and provides you with the sharpness you need at your workplace
Flying with hearing aids

Tips for Flying with Hearing Aids and Batteries

You can safely fly with hearing aids and hearing aid batteries. However, there are some useful tips you should follow that will make your life a lot easier.

  • Verify airport security rules for hearing aids and batteries.
  • Pack batteries safely, away from metal objects.
  • Bring extra batteries and charging station.
  • Check rules for lithium ion rechargeable batteries; they're usually allowed if installed in devices.
  • Zinc open-air batteries can go in checked luggage.
  • Inform security about your hearing loss and batteries.

Hearing Aid Battery Cost

If you have a service plan with your non-rechargeable hearing aids, we offer a 4-year supply of batteries up to a maximum of 80 disposable cells per year per hearing aid. After the 4-year supply runs out, you will need to purchase batteries.

Each card of size 10/312/13 batteries contains 8 cells which costs $14. Each card of size 675 batteries contains 4 cells which also costs $14. If the client holds a service plan, we apply a 50% discount.

You might also be interested in...

In-store photography RetailWSA

Hearing aids and accessories

At HearCANADA, we offer a range of hearing aids and accessories. You can purchase hearing aids, accessories, and batteries from one of our local hearing clinics. At HearCANADA, you can purchase hearing aids, accessories, and batteries from one of our local hearing clinics.
Different hearing aids types

Hearing aid types

Are you looking for hearing aids? Hearing aids come in a variety of types and styles, which can be broken into two main categories. We will talk about each type of hearing aid as well as the advantages and disadvantages of them.
Widex Moment Sheer hearing rechargeable hearing aids in charger

Hearing aid accessories & assistive listening devices

For people who are hard of hearing, a wide variety of technologically advanced products can make hearing easier. Hearing aid accessories and assistive listening devices (ALDs) can help enhance your listening experience with hearing aids.

Talk to a Hearing Care Professional in one of our centres.

Book appointment

You have questions or need assistance?

Call us 1-877-437-9911
Canada map

Find a hearing centre near you