Hearing aid batteries

Your hearing aids will use a particular type of battery, which needs to be changed regularly.  Typically, hearing aid batteries last a week or two, but this will depend on the type of hearing aids you have, as well as on how much you use them.  You should have been given a small supply of spare batteries when you received your hearing aids.
If you got your hearing aids through the NHS, you will be entitled to new batteries free of charge.  Your audiologist should already have explained the procedure for getting these.  If not, contact the audiology clinic before your current supply runs out.
If you purchased your hearing aids privately, you will need to pay for your batteries.  These can be purchased from any high street hearing aid dispenser or pharmacy.

Hearing aid batteries should be kept clean and dry and away from extreme heat or cold.  Used batteries should always be returned when new batteries are obtained.  Never discard used batteries by throwing them into a fire, as they may explode.  The batteries should be stored securely, out of the reach of small children.  Contact your GP immediately if anyone swallows a battery.

After using your hearing aids for a few months, you’ll have a good idea of how often you need to replace the batteries – but it’s wise to carry a spare or two in case the ones in your hearing aids die unexpectedly.

Some hearing aids use rechargeable batteries instead of non-rechargeable ones. These eventually deteriorate and have to be replaced, but you need to recharge them on a regular basis.

Changing batteries

You should change your hearing aid batteries as soon as you notice the sound quality becoming poorer.  If sounds become fainter, fuzzy or crackly, it is likely you need to replace the batteries.  Many hearing aid models are able to warn the user that the battery is low by producing a beeping sound.

Most hearing aid batteries are ‘zinc-air’ types. You activate these by removing a sticky tab, before inserting them into the hearing aid.   These batteries stay fresh for a very long time indeed while the tab is still in place – so, do not remove the tab until you need to use the battery, because it will start to run down. You don’t need to worry about this if your type of hearing aid (body-worn hearing aid for example) uses batteries that don’t have these tabs.

Open the battery compartment of your hearing aid, remove the old battery, and then carefully insert the new battery – ensuring that it goes in the right way round (with the ‘+’ on the battery facing the ‘+’ side of the battery compartment). 
After carefully closing the battery compartment, check that the hearing aid is working properly.

The colour of the tab will help you identify the different types (sizes) of zinc-air batteries – orange for type 13, brown for 312 and yellow for type 10 (note that these are ‘generic’ codes, and individual manufacturers may use their own coding). This is very useful, as these batteries are small – especially type 10.

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