How much is a hearing aid battery?


The Cost of Hearing Aid Batteries

All hearing aids require batteries to function. Since hearing aids are very small devices, the batteries are very small as well.

Although hearing aid batteries are a similar size to watch batteries, they do not last nearly as long.

The reason for that is the digital processing that is taking place in a hearing aid is much more complex than that of a watch.

Assuming the hearing aids are being worn 14-16 hours/day, the lifespan of a hearing aid battery will depend on a few factors:

  • The size of the battery
  • The processing of the hearing aid
  • hearing-aid-batteries-cost Size of Hearing Aid Battery
  • The smallest common hearing aid battery is a size 10. The hearing aids that use these batteries are the smallest hearing aids available.

The next largest size is a 312. This is probably the most commonly used battery size in the newer hearing aids.

A size 13 hearing aid battery is the same diameter as a 312 but a little thicker.

The largest size is a 675. These are for the most powerful hearing aids and a bit larger.

The Processing of the Hearing Aid

The more complex processing the hearing aid is performing, the quicker the battery drain. For instance,

if the hearing aid wearer is engaged in noisy conversations for most of the day, their hearing aid is doing more work than the wearer who is home alone most of the day.

The hearing aids for the first wearer will require more energy from the battery than the second wearer.

If the hearing aid is a “Smart” hearing aid, meaning that it connects to smartphones or other bluetooth devices for audio streaming,

Then the battery will not last as long. Bluetooth streaming takes a lot of battery power, so the more you stream with your hearing aids throughout the day, the shorter your battery will last.

So how long do they last?

There is a precise way of measuring battery drain for each hearing aid model and type by using a battery drain meter. However, every battery size has an average lifespan.

How much do hearing aid batteries cost?

As you can see, the size of the battery will determine how long the battery lasts. This means that the smaller

the hearing aid battery is, the more often you will have to replace it, which means the more you will have to purchase.

There are several places that hearing aid batteries can be purchased. Essentially any retail store that has a pharmacy will carry hearing aid batteries.

You can also purchase them in bulk at warehouse stores such as Costco or Sam’s club. They are now also available online. has great discounts on hearing aid batteries.

Of course, the price of the batteries is going to vary depending on where you purchase them. Considering the average price for hearing aid batteries in a retail store, here is a breakdown of

What you can expect to spend on batteries for two hearing aids per size:

If battery size and cost is important to you then you want to be sure to discuss this with your Audiologist when purchasing hearing aids.

Be aware that the smaller the hearing aid is, the smaller and more costly the batteries will be.

Rechargeable hearing aids are becoming more prevalent, but are still in the early stages of development.

There are still quite a few kinks to work through when it comes to rechargeable hearing aids. Read more here to find out if rechargeable hearing aids are right for you.

How Long Hearing Aid Batteries Really Last?
Hearing aid batteries are an important consideration for anyone looking to purchase a new pair of hearing aids.

If you are new to the world of hearing aids, you’re probably asking yourself the following questions:

  • How long can you expect hearing aid batteries to last?
    How much will hearing aid batteries cost?
    Are some hearing aids better than others when it comes to battery life?
    Does wireless audio streaming impact battery life?
  • The problem with calculating these estimates?
    Yep, you guessed it. Estimating your battery life based on battery current drain is notoriously difficult.
  • When battery current drain is measured hearing aids are put into “test mode,”
  • which often disables advanced processing technologies such as feedback cancellation and digital noise reduction.
  • Wireless connectivity is also disabled in test mode.

What about estimates provided by hearing aid manufacturers?

Hearing aid manufacturers often provide estimates of battery life (in hours) along with their products.

While this is certainly an improvement over battery current drain figures, we encourage caution when reading manufacturer provided estimates.

Manufacturers often overestimate battery life, and due to the individual factors involved (such as your lifestyle, the hearing aids configuration,

And whether wireless streaming is used), it’s hard to estimate battery life until you are wearing the hearing aids yourself.

Hearing Aid Styles
In our survey, we asked participants about their hearing aid style. Most respondents use some form of behind-the-ear hearing aid with Receiver-In-Canal (RIC) the most popular style.

Custom in-the-ear style hearing aids were less common, with only 10% of respondents indicating CIC, ITC, ITE or IIC:

How Long Do Hearing Aid Batteries Last, On Average
It should be no surprise that hearing aid batteries last longer if they have a higher capacity. As you’ll recall from our hearing aid battery brand comparison

table the average tiny size 10 battery has ~93 mAh capacity while the the much larger size 675 battery has ~627 mAh capacity.


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