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F.A.Q.

Battery Safety

My child has swallowed a Hearing Aid Battery, what should I do?

The chemistry of modern hearing aid batteries are not as harmful as those of previous generations, however, If you or your child accidentally ingest a Hearing Aid Battery, it is recommended you consult your doctor immediately.

Do Hearing Aid Batteries contain mercury?

In 2017, our company achieved an ambitious target to become the world’s first fully ‘mercury-free’ Hearing Aid Battery manufacturer, paving the way to a more eco-friendly future. Since the conversion to mercury-free products, RAYOVAC® has continuously invested in research, development and the manufacturing process, to enable the global switch to the highest quality mercury-free products.


Mercury is a heavy and toxic metal - removing it from hearing aid batteries means less harmful ingredients are used in the production process, and this in turn reduces the amount of environmental exposure to mercury.
How can I dispose of my Hearing Aid Batteries?
Our company is subscribed to a scheme called 'Battery Back', which collects batteries at recycling points around the uk and recycles them on the company's behalf. The company worked very hard with 'Battery Back' in the early days to raise awareness of the new legislation with both consumers and customers. Removal of mercury from all products has enabled a significant increase in waste being recycled via 'Battery Back'.

Consumer Frequently Asked Questions

Where are Rayovac Hearing Aid Batteries made?
Rayovac are proud to manufacture their hearing aid batteries in the United Kingdom and USA.
Are Rayovac Hearing Aid Batteries rechargeable?

Rayovac currently do not manufacture rechargable hearing aid batteries. Please do not try to recharge any of our products.

How long will my Hearing Aid Batteries last?
Battery life is determined by a number of factors including the type and amplification of your hearing aid as well as the hours you wear it. Your hearing care professional can tell you the battery life you can expect based on your hearing aid. There are a number of factors affecting hearing aid battery life and steps you can take to get the longest lasting performance from your hearing aid battery
How can I test the remaining power of my Hearing Aid Battery?
It is difficult to test how much power is remaining in your hearing aid battery. This is because a hearing aid batteries maintain a steady voltage between 1.25-1.4v for the majority of their lifetime before dropping off rapidly when they die. It is however, possible to test whether your hearing aid battery is dead using a hearing aid battery tester. Many modern hearing aids will also sound a low power warning a couple hours before the battery dies which gives you time to obtain a replacement.
What at what voltage should I replace my Hearing Aid Battery?
The cut off point for voltage varies by the aid. On average a hearing aid battery will power a hearing aid untill the battery power decreases to below 1.05v. Keep in mind that the battery maintains a steady voltage of between 1.25-1.4v before dropping off sharply in a matter of hours at the end of it's life.
Are my Hearing Aid Batteries affected by weather?

Yes, Hearing Aid Batteries are affected by climate, particularly when the weather introduces the Hearing Aid Battery to moisture or dryness. Humid/tropical environments can cause the battery to take on moisture which interferes with the delicate zinc-air chemistry and consequentially reduces battery life. Similarly, dry conditions, such as those associated with very cold environments can cause the hearing aid battery to dry out and prematurely fail.

What factors affect my Hearing Aid Battery life?

There are a number of factors which can influence the life of your Hearing Aid Battery. We have created a helpful guide to ensure you get the longest lasting performance from your Hearing Aid Batteries.

How should I store and carry my Hearing Aid Batteries?

It is recommended you store your Hearing Aid Batteries at room temperature, free of moisture. Avoid storing batteries in hot places as this can reduce the life of the batteries. Refrigeration is not recommended as this will introduce moisture to the battery. Hearing Aid Batteries should be kept out of reach by infants or children.


You should not carry around loose batteries in your pocket or purse as interaction with metal objects such as coins or keys can cause the hearing aid batteries to short. When travelling, it is recommended you store your Hearing Aid Batteries in a Rayovac Hearing Aid Battery Caddy, to ensure your batteries are not damaged.

Why is there a tab on my Hearing Aid Battery?

A zinc air technology, such as that used in our Hearing Aid Batteries, uses air from outside of the battery to activate the chemistry within. The factory applied tab seals the air holes in the battery and ensures freshness until you are ready to use the battery. Do not remove the tab until you are ready to use the battery. To activate the battery, you simply remove the tab. After removing the tab, wait about one minute prior to inserting the battery into your hearing aid. This allows sufficient time for the air to enter and activate the ingredients. Replacing the tab when the battery is not in use will not extend the battery life. Read more about how to get the best hearing aid battery longevity in this article:

Factors Affecting Hearing Aid Battery Life
What types of Hearing Aid are there?
Modern hearing aid batteries are significantly improved from those available in previous years. Modern hearing aid technologies not only produce clearer, better quality sound but are significantly smaller, most asthetically designed and capable of wireless streaming and IOT connectivity. 

Typically, there are four main categories of hearing aid including: 

Completely in the Canal
CIC or Invisible in the Canal (IIC) hearing aids are the smallest hearing aids available. They fit completely within the opening of the ear and are barely visable. Although barely noticeable, these hearing aids usually aren't powerful enough for a user with severe hearing loss and are very fiddly due to their site. 

In the canal (ITC)
ITC hearing aids are slightly larger than CIC hearing aids, but stil fit within the opening of the ear. These hearing aids are fiddly due to their size.

Receiver in the ear (RITE)
RITE hearing aids are slightly visable, but less so than BTE hearing aids. This form of hearing aid includes a receiver in the ear, connected by a wire to a speaker placed inside the opening of the ear. 

Behind the ear (BTE)
BTE hearing aids are the most common type of hearing aid. These devices consist of a receiver device which sits behind the ear which connects via a plastic tube to a moulded speaker which sits in the ear opening.

Please see the instructions of your brand of Hearing Aid to determine which batteries you should use to power your device.

Are battery chemistries interchangeable?
Hearing Aid Battery systems are interchangeable by size; 10, 13, 312 or 675. However, because of your specific hearing aid and it's demand based on your usage, you may receive a better quality sound or longer battery life from a certain chemistry. To find out the best hearing aid battery for your personal device and usage, consult your local hearing care expert.
Do I have to use the same brand of batteries which came with my Hearing Aid?

Most Hearing Aids will come with a specific brand of battery, this does not mean they must specifically use these batteries. Your Hearing Aid will require a certain size of Hearing Aid Battery and can only take that specific size. However, brands are interchangeable.

How else is Rayovac going green?
Rayovac has a strong commitment to the environment and sustainable production. All our plastics are 100% recyclabe and sourced from PEFC approved sustainable forests. Rayovac continually look to minimise their impact on the environment and are looking at ways to reduce packaging. Hear over to our environmental policy to learn more.
What type of battery should I be using in my Hearing Aid?
There are four different battery sizes: 10, 13, 312, and 675. Manufacturers use an industry-standard color code to identify the battery size. Different battery sizes are used to power different types of devices. You can find which type of battery your device requires by referring to your hearing device's manufacturer's manual.
How do I properly insert batteries into my Hearing Aid device?
1. Locate the battery component on your hearing aid and open the door.

2. Place the battery into the hearing aid so the tab is facing outward.

3. Remove the tab and leave the battery door open for 60 seconds to let the battery air up.

4. Securely close the battery door.

Trade Customer Frequently Asked Questions

What do I do if my customer reports receiving a dead Rayovac Hearing Aid Battery

Rayovac hearing aid batteries undergo over 262 quality checks during the manufacturing process meaning all products are manufactured to the highest possible standard. However, if your customer believes their product quality has been compromised, please contact our customer service team.

Where are Rayovac Batteries Made?
Rayovac are proud to manufacture their hearing aid batteries in the United Kingdom and USA.
How can I become a distributor of Rayovac ProLine Advanced
Read more about becoming a supplier of ProLine Advanced hearing aid batteries by visiting our Audiologists page.
Are there any accessories I can offer my patients to increase my sales?
Rayovac offer a range of hearing aid battery accessories including a hearing aid battery tester, hearing aid battery caddy, a five-in-one hearing aid device cleaning tool and a magnetic hearing aid battery pen. You can read more about these products on our accessories page.
How long will my customers Hearing Aid Batteries last?
Battery life is determined by a number of factors including the type and amplification of your hearing aid as well as the hours your customer wears it. There are a number of factors affecting hearing aid battery life and steps your customer can take to get the longest lasting performance from their hearing aid battery