The question of precisely how long hearing aid batteries can be expected to last is not as simple to respond to as it seems, because battery performance depends on many factors. One consideration is the company manufacturing the hearing aid. Battery life differs by manufacturer and also across models from the same manufacturer. The way you use your hearing aid will also affect battery life; the more hours a day it is turned on, the more often you will use up batteries.
There are even different battery lives in the same size of battery depending on the manufacturer, and depending on if you are purchasing that manufacturer’s “premium” line or their “normal” line of batteries. Battery type is yet another factor in longevity. For example, zinc-air batteries will start to burn power the second you remove the tab on the bottom and will continue to lose charge even if the hearing aid is turned off while other types will only drain when they are inside a hearing aid that is powered on.
Because the expense of hearing aid batteries adds up, if you are looking for a new hearing aid, you should do some research to see which types and models of hearing aids are known for the best battery life, because that may influence your choice. The same research recommendation holds true if you have an existing hearing aid and are searching for the batteries with the best performance for it; you can uncover a great deal from consumer ratings and comparative reports.
Luckily, when shopping for hearing aid batteries, the companies that manufacturer them have made things a lot easier for you by standardizing their sizes and color-coding each size; the identical color codes are used by all manufacturers. The following list of battery life is estimated, of course, but it should give you a general idea of how long batteries of each size should last:
- 80 hours – Yellow – #10
- 175 hours – Brown – #312
- 240 hours – Orange – #13
- 300 hours – Blue – #675
For the longest battery life, remember to turn your hearing aid off when you are not wearing it. To ensure the longest shelf life for batteries you have purchased but have not used yet, store them indoors, at room temperature, and in their original, unopened packaging.