Getting hearing aids can change your life. They are one of the greatest modern inventions, and they are used by millions of people all over the world.

Being able to hear is an amazing thing, and having the right tool can be advantageous. Just like there are different types of hearing aids, there are different hearing aid battery sizes.

To ensure that your hearing aids are working properly, they require some accessories. This include tools to keep them clean, a case to carry them, and the right hearing aid battery sizes. Without batteries, they won’t work at all, and you won’t be able to enjoy the world around you.

What Are the Different Types of Hearing Aid Batteries?

In general, there are two types of hearing aid batteries: rechargeable and standard disposable.

1. Rechargeable Batteries

These are not quite as common as disposable batteries, but they can be found in some newer brands of hearing aids. They are meant to be charged at night when not in use. Currently, they are more commonly found for behind the ear types of hearing aids.

2. Standard Disposable Batteries

These are the more common batteries that can be found for hearing aids, and they are referred to as zinc-air button disposable batteries or button batteries.

They are air-activated, so to keep them from running out of power, they are sealed at the factory with a sticker. Once this has been removed, oxygen interacts with the zinc and gets it to turn on.

To ensure that the battery is performing optimally, it’s best to wait at least one minute after the sticker has been removed before placing the battery in the hearing aid. Putting the sticker back on the battery will not deactivate it. Once it’s been removed, the battery is active.

When stored at room temperature and in a dry environment, button batteries can last for up to 3 years. Some people will place their batteries in the fridge to keep them longer, but this doesn’t help button batteries. In fact, it could cause moisture to get under the sticker, which can reduce battery’s life.

Which Hearing Aid Battery Lasts the Longest?

Which Hearing Aid Battery Lasts the Longest

The type of battery that a person gets and how often they use their hearing aids will determine which hearing aid battery sizes lasts the longest. On average, it is assumed that a person will wear and use their hearing aids for 16 hours a day.

If that’s the case, then the battery can last anywhere from 5 to 20 days. In general, the smaller the battery, the shorter its life will be.

If you find that you are going through batteries at an above-normal rate, this could be a sign that there is something wrong with the device. Consulting your owner’s manual or talking to a healthcare professional could be beneficial in determining what the issue might be.

Other factors that have an impact on how long a battery lasts include the manufacturer, hearing aid usage, and amplification level. Certain brands will emit stronger power than another brand, which will result in a shorter lifespan.

The type of hearing aid you wear will also have an impact. Digital hearing aids require more power so they will drain a battery faster.

When it comes to battery brands, Rayovac has a reputation for being reliable and working great in both in the canal and behind the ear hearing aids.

They have advanced power of almost 17% greater than regular batteries, as well as a 4-year shelf life. They are an incredibly popular brand and may be one of the hearing aid batteries that last the longest.

Extending the Life of a Hearing Aid Battery

When it comes to extending the life of a battery, there aren’t any sure ways to accomplish the task. However, turning the devices off at night and opening the backs could help.

This will ensure that the battery isn’t being drained when the hearing aid isn’t in use, and it will allow any moisture that may have built up in the battery compartment to evaporate. Remember, moisture will drain the battery life faster than normal, so keep these as dry as possible.

Always store the various hearing aid battery sizes at room temperature. It’s also a good idea not to keep them in the bathroom where exposure to heat and moisture can deplete their power.

They also shouldn’t be stored in pockets or purses. If they come into contact with metal objects, including keys and coins, this can short circuit them.

A Guide to Hearing Aid Battery Sizes

A Guide to Hearing Aid Battery Sizes

The size of your hearing aid will determine which of the various hearing aid battery sizes you will need. A general rule is that the larger the hearing aid is, the larger the battery you will need. There are four common sizes of button batteries that exist, and these include the following:

Size 675

This battery is 11.6 mm wide x 5.4 mm high and is commonly used for behind the ear hearing aids. They come color coded in a bluish color, and they can last for 9 to 20 days before needing to be changed.

Size 312

These batteries are 7.99 mm wide x 3.6 mm high and are used in hearing aids with a mini receiver in the ear, as well as in-the-ear, and behind-the-ear hearing aids. They are color coded brown. They have a lifespan of about 3 to 10 days.

Size 10

Coming in at 5.8 mm wide x 3.6 mm high, these hearing aid battery sizes are found in hearing aids with a mini receiver in the ear and hearing aids that are completely inside the ear canal. They may also be found in other smaller hearing aid devices. They are color coded with yellow and last for 3 to 10 days. Their life could be extended if used efficiently, but it will probably only add a few days.

Size 13

Used for in-the-ear and behind-the-ear hearing aids, these measure 7.9 mm wide x 5.4 mm high. They are color coded with orange and have a lifespan of 6 to 14 days, but they may be able to last longer.

There is also a fifth size, Size 5, but this one is rarely used anymore for hearing devices. They can still be found at electronic stores if you have a hearing aid that requires these hearing aid battery sizes.

Purpose of the Color Code

When it comes to hearing aid battery sizes, it may be difficult for the wearer to remember what size they need. Thus, the color code system was created to make the process easier.

Each battery comes with a different color, and this is placed on the package so that you know you’re getting the right power supply for your device.

Hearing Aid Battery Costs

The cost of hearing aids will vary depending on the type you get and the manufacturer. If you use your device quite often, you may find that you go through batteries pretty quickly, and this can increase how much you spend to keep the hearing aid working.

There may be options to buy hearing aid batteries in bulk, which could significantly reduce the price. If this is the route you decide to take, make sure to store the extra ones correctly.

This includes in a cool, dry placeā€”not in the fridge. Remember, you also want to make sure that the sticker on the back remains in place until you are ready to use them and that they don’t touch other metal objects.

Where Can You Find Hearing Aid Batteries?

Some of the top name brands that develop and manufacture hearing aid batteries include Energizer, Duracell, Rayovac, and PowerOne. These can be found at pharmacies, grocery stores, general stores, electric stores, and online.

Finding the brand that works best for your device may require some trial and error. However, once you find the best battery, it’s best to use this one for the life of your device.

This will ensure that you are getting the most out of your hearing aid and using a battery that powers it optimally.

If you find that you need to get a new hearing device, you may want to consider the type of battery it will require and how often it will need to be replaced.

This can add to the cost in the long run, and getting a hearing aid that requires a larger battery may mean that they will last longer.

Of course, you’ll need to do what’s best for you and what the hearing professional recommends, but you can always ask about battery life and cost to save some money.


The development of the hearing aid has changed a lot of people’s lives. This device has made it so that they can hear and enjoy the world around them, as well as engage in conversations with loved ones and friends.

Most hearing aids are powered by a button battery, which is disposable, but it may be possible to find rechargeable batteries. The right battery will ensure that the device works optimally and lasts for as long as possible.