While there are rare instances that a hearing aid will use a rechargeable battery, the majority of them use one of the standard Button Cell Zinc-Air batteries. These batteries all operated at 1.35 Volts (sometimes rounded up to 1.4 Volts). Typically, one would differentiate between batteries with their size.
Here you can find answers to some of the most common questions. Hearing aid batteries are extremely valuable items, and hopefully the answers here will help you understand a little more about them.
How can I tell what battery size I need?
Some time ago, hearing aid batteries sizes were standardized … Keep Reading





