The length of time that hearing aid batteries will last depends not only on the brand, but also the particular type of hearing aids that you are using. If your hearing aid requires more power, the battery will obviously run out a bit faster. Analog hearing aids do not require as much power as digital hearing aids, so their batteries can last longer. The reason is because digital hearing aids are much more complex, and more complex usually means that they take more energy to power. Usually, hearing aid batteries will last anywhere from five to seven days.
If you have been noticing that your batteries wear out faster than that, you should have your hearing aids check by a professional, as this could be a sign that they are not performing properly. Hearing professionals can check the battery contacts in the hearing aids, and also test battery drain to see if there is some sort of issue causing a malfunction. In cases where there is something wrong with the hearing aids, you can have them sent in for repair.
Hearing aid batteries can also run out more quickly than they should if you leave them in places where they will be in hot temperatures. Heat can make the activation stickers on the back of hearing aid batteries peel off, which would cause them to start releasing energy even when you’re not using them. And since the stickers will go back onto the battery as soon as it gets cool again, you will probably never notice. So it is best not to keep them in places where they will be able the heat up, like a car for example.
Most of the hearing aid batteries on the market work by mixing zinc with oxygen. These are known as “Zinc Air” batteries. When you take the tab off of a hearing aid battery, it immediately becomes active. Even if you put the tab back on, the damage is already done.
As soon as that tab is peeled the first time, there is no going back. Keep the tabs on until the last minute when you are ready to use them. As soon as the batteries die, do not mix them back with new ones, as you could get confused by doing that.
Fresh batteries are very important. At Jackson County Audiology we receive a new shipment of batteries every week. We use Starkey (Rayovac) and Phonak batteries. Many people tell us our batteries last longer than other batteries they have tried.
We sell a 6-pack of batteries for $5.00, and after you purchase 3 packages you receive one FREE! Wherever you purchase them, not only check the expiration date on the back, but ask how long they have been sitting in stock in their store!