The question of how long hearing aid batteries should be expected to last isn’t as easy to answer as it seems, because battery life is dependent upon many factors. Battery life will depend on the model of your hearing aid, and can vary widely even in models produced by the exact same manufacturer. How you use your hearing aid will also affect battery life; the more hours each day it is turned on, the more rapidly you will consume batteries.
There are even varying battery lives in the same size of hearing aid battery depending on the manufacturer, and depending on whether you’re purchasing that manufacturer’s “premium” line or their “normal” line of batteries. Battery life also depends on battery type; for example some types are only being drained when they are in a hearing aid that is switched on, while other varieties (for example, zinc-air batteries) start burning power as soon as you take away the adhesive strip on the bottom of the battery and they’re in contact with oxygen, regardless of whether the hearing aid is on or not.
If considering new hearing aids, it’s a good idea to do some research on the different models and the types of batteries they use to help you determine the best choice for your lifestyle. The same research suggestion holds true if you have an existing hearing aid and are trying to find the batteries with the best performance for it; you can find out a great deal from consumer ratings and comparative reviews.
To make things somewhat easier for you, hearing aid batteries are produced in 4 common sizes, each of which is marked with a distinct color code, which is consistent no matter who the manufacturer is. See the estimated battery life below to get a basic idea of how long batteries of each size can be expected to last:
- 80 hours – Yellow – Size 10
- 175 hours – Brown – Size 312
- 240 hours – Orange – Size 13
- 300 hours – Blue – Size 675
For the longest battery life, remember to turn your hearing aid off when you are not wearing it. And to ensure hearing aid batteries you have already bought but have not used yet stay fresh and retain their power as long as possible, store them indoors in their original unopened packages, and at room temperature.