The question of precisely how long hearing aid batteries should be expected to last isn’t as simple to answer as it seems, because battery life is dependent upon numerous factors. How long a battery lasts is dependent upon which company manufactured the battery, and can even vary between various hearing aid models from the same manufacturer. The actual life span of a hearing aid battery also hinges upon the amount of time each day that the hearing aid is on. Unsurprisingly, the more you use your hearing aid, the faster the batteries will deplete.
The hearing aid batteries themselves are a key factor. Batteries the exact same size from different manufacturers will have different lives. And there will be variance within one battery manufacturer if they offer premium or extended-life lines. Some hearing aid batteries will not begin to drain their stored energy unless they’re plugged into a hearing aid that is powered on, and some (such as zinc-air batteries) will begin to burn power the moment you pull off the adhesive tab on the bottom of the battery, and will continue to decline in power even if the hearing aid is not turned on.
If you are looking for a new hearing aid, you may want to do some research in advance to see which have the best ratings for battery life, because that could influence your choice of which type or which model of hearing aid to purchase. If you have an existing hearing aid and are searching for the longest lasting batteries for it, the Internet can be a fabulous source of comparative ratings and reports.
To make things easier for you, hearing aid batteries are produced in four common sizes, each of which is marked with a specific color code, which is always the same no matter who the manufacturer is. The following list of battery life is estimated, of course, but it may give you a basic idea of how long batteries of each size should last:
- Yellow – #10 – 80 hours
- Orange – #13 – 240 hours
- Brown – #312 – 175 hours
- Blue – #675 – 300 hours
Don’t forget to turn your hearing aid off when you aren’t wearing it for the longest battery life. And to ensure hearing aid batteries you’ve already bought but have not used yet stay fresh and retain their power as long as possible, store them indoors in their original unopened packaging, and at room temperature.