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How Long Do Hearing Aid Batteries Last?

A frequent question, especially amongst new hearing aid wearer’s is how long do hearing aid batteries last. It is a legitimate question, one that we briefly discussed last week in the post hearing aid batteries questions and answers, however we felt that this topic deserves more attention for a number of reasons.

1. The batteries duration may be a consideration when buying a new hearing aid. You may prefer to buy one model instead of the other due to its battery lifetime.

2. The cost and daily calculation of operating a hearing aid may be a further consideration. (See Stuart’s earlier article How Much Do Hearing Aid Batteries Cost?)

How long do hearing aid batteries last?

The answer to this question is not straightforward. A number of factors will influence the battery life and these are:

1. The model - There are many hearing aid devices in the market, and some are better than others at preserving resources. Even within a hearing aid manufacturers brand, one model may be better than another in terms of battery consumption.

2. Type of use - Naturally, the more you use the device, the quicker the batteries will deplete. Hearing aids belong to a group of high demanding devices. These devices require optimal power consistently, it is only when the device is switched off that power is not used.

3. Brand of batteries and power technology - There are a number of brands for providing specialist hearing aid batteries, from Rayovac to Duracell. Within each brand, there are normally two or more lines of power technology, so this factor will also influence the battery life.

4. All zinc air batteries rely on air entering the battery to start the reaction that produces power. When you first receive your battery, it will have an adhesive tab on the bottom to prevent air entering the battery and starting the reaction. As soon as this tab is removed, the reaction and battery life begins. Therefore, the batteries life will continue to deplete, even if not in use, once this tab is removed.

As a consequence of these various interrelational factors we recommend that you familiarise yourself with your device’s low battery warning notification process . After a while you will become accustomed to the duration to expect for your particular hearing aid and its typical usage pattern. Furthermore, you should consider carrying an additional battery set just to be on the safe side. As a final tip, make sure you follow our recommendation for safe storage of these batteries.

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