Different types or styles of hearing aids take different types of batteries. Generally speaking, the larger the hearing aid, the larger the battery to be used. Battery life is usually longer with the larger batteries.
The size of your batteries can be found on the front of the battery package that was included with your purchase. The colour of the package will also tell you what size you have:
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YELLOW = Size 10 |
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BROWN = Size 312 |
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ORANGE = Size 13 |
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BLUE = Size 675 |

The amount of battery life you can expect depends upon the type of battery and amplification, strength of your hearing aid, and the number of hours of total use.
Advanced Hearing Aid Clinic is constantly investigating different manufacturers for batteries that will provide the longest life. Batteries at the Clinic are purchased frequently so there is always a fresh stock on hand.