Although it seems to be a simple question to ask just how long hearing aid batteries will last, it’s actually not. Precisely how long hearing aid batteries last depends on quite a few factors. Just how long a battery will last is dependent upon who manufactured the battery, and can even vary across models from the exact same manufacturer. The life of a hearing aid battery also depends upon the amount of time each day that the hearing aid is turned on. Unsurprisingly, the more you use your hearing aid, the faster the batteries will be used up.
There are even varying battery lives in the same size of battery depending on the manufacturer, and depending on whether you’re buying that manufacturer’s “premium” line or their “normal” line. Battery type is another key factor in longevity. For example, zinc-air batteries will begin to burn power the instant you remove the tab on the bottom and will continue to lose charge even if the hearing aid is turned off while other battery types will only discharge when they are in a hearing aid that is powered on.
If you are in the market for a new hearing aid, you might wish to do some research in advance to see which have the best ratings for battery life, because that may influence your choice of which type or which model of hearing aid to purchase. Similarly, a little time invested in research may help you locate longer-lasting batteries for your existing hearing aids. Hearing aidand battery manufacturers have worked to make things less confusing by standardizing their sizes and using unique color codes for each battery size which is the same for every manufacturer. The times listed below for each battery size are approximations, but will give you a general idea of how long batteries of each size ought to last given normal use:
- Size 10 – Yellow – 80 hours
- Size 13 – Orange – 240 hours
- Size 312 – Brown – 175 hours
- Size 675 – Blue – 300 hours
To ensure the longest life for your hearing aid batteries when they’re in the hearing aid, turn the device off when you’re not using it. To ensure the longest shelf life for batteries you have purchased but haven’t used yet, store them indoors, at room temperature, and in their original, unopened packaging.