Typically, a battery will keep a hearing aid powered for three to ten days before it needs replacing, depending on usage and the hearing aid style.

You’ll hear two beeps when it’s time to change the battery. This pre-warning will be repeated at moderate intervals until the battery runs out. This may happen shortly after the pre-warning or within the next couple of hours.

You may hear four beeps; this will be the last warning before the hearing aid turns off. 

Once you have inserted a fresh battery the hearing aid will start up as soon as the battery drawer is closed. Jingle plays during start-up. Put the hearing aid on immediately, as it might whistle when held in the hand.

When not in use, turn your hearing aid off by opening the battery drawer. This way you save the battery.

A worn-out battery should be removed immediately and disposed of according to local regulations. Remember that batteries and hearing aids should be kept out of reach of children and pets.

How to

Replace the battery in in-the-ear hearing aids

  • Remove

    Fully open the battery drawer. Remove the battery.

  • Uncover

    Remove the sticky label from the + side of the new battery.

  • Insert

    Insert the new battery into the battery drawer. Make sure the + side faces the + on the battery drawer.

  • Close

    Close the battery drawer. The hearing aid will play a jingle. Hold the instrument close to your ear to hear the jingle.

Tip:The MultiTool can be used for battery change. Use the magnetic end to remove and insert batteries. The MultiTool is provided by your hearing care professional.

If there is any moisture on the battery surface, it should be wiped off before use. When you change the battery, it will take a few seconds before the battery begins to work.

Watch how to change the battery in an in-the-ear hearing aid:

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Hearing aid batteries

There are four types of zinc air batteries used in hearing aids, and each has its own colour code on the battery package. The battery size you should use is given in the hearing aid’s instructions for use.

Contact a hearing care professional to find out how you get the right batteries for your hearing aids. At the hearing centre you can also get the Multitool, which makes it easy to handle the batteries as well as clean the hearing aids.

Locate nearest hearing centre

How to test your battery

If your hearing aids turn off, you may wish to check if the battery has run out. There are two common ways to check this:

With a battery tester
Place the battery on the battery tester surface. Ensure that the positive (+) marking is facing upwards. Slide the battery in the direction of the arrow and read the result on the display.

Without a battery tester
Insert the battery in the hearing aid and close the battery drawer. Close your hand around the hearing aid and hold it up to your ear. If the hearing aid is squealing, the battery is functioning.