Why do hearing aid batteries tend to run out faster in the winter?

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  • Source:Costco Hearing Aids

During the winter season, the lower ambient temperature significantly affects the performance of zinc-air batteries used in Hearing Aids. As a result, the battery life is noticeably shortened. When the battery's charge or voltage drops below a certain level, the hearing aid emits a warning tone, and the sound may become distorted, intermittent, or the hearing aid may even stop functioning.

The usage temperature of hearing aid batteries is directly proportional to their available capacity. Starting from the optimal operating temperature of 25 degrees Celsius, the available capacity decreases as the temperature drops. However, as the temperature rises, the capacity also recovers. Therefore, it's normal for hearing aid batteries to deplete faster in winter, and it doesn't necessarily indicate a problem with the hearing aid itself.

Winter Hearing Aid Battery Tips:

After removing the battery protection film, let it sit for 2-5 minutes. This allows the internal electrolyte of the hearing aid to fully interact with the air before inserting it into the hearing aid.

Avoid exposing the hearing aid to low temperatures, such as inside a turned-off car or in drafty areas.

When using the hearing aid outdoors, cover it with a scarf, hat, or earmuffs to protect it from direct exposure to wind, rain, snow, etc.

Keep spare batteries on hand.

Promptly replace depleted batteries, regularly check their condition, and remove the batteries if the hearing aids are not used for an extended period.

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