Searchwave - Hearing Aid Batteries
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Hearing Aid Batteries

General Notice: All batteries are toxic and dangerous if swallowed. Keep all batteries (and hearing aids) away from children and pets. If anyone swallows a battery it is a medical emergency and you need to contact poison control.

Hearing aid batteries normally last 7-14 days when the hearing aid is used 16 hours per day. Performance will vary depending on the style and type of hearing aid technilogy you are using.

You can buy them at most general retail stores (drug stores, grocery stores) and also via the internet. Batteries cost about one dollar each so on average, if you wear 2 hearing aids, expect to spend about $4 per month.

Hearing aids come in different sizes and the size is coded by color. Ignore the size name and number, just pay attention to the color. If your audiologist started you off with hearing aid batteries color coded orange, you can buy any brand of battery with the same color coding.

The sizes of hearing aid batteries are listed below along with their standard number and color codes. The run from the smallest size (Red) to the largest size (Blue)

Today's hearing aid batteries are "zinc-air." Because the batteries are air-activated, a factory-sealed sticker keeps them "inactive" until you remove the sticker. Once the sticker is removed from the back of the battery, oxygen in the air contacts the zinc within the battery, and the battery is "turned-on". Since many of today's automatic hearing aids do not have "off" switches, removing the battery from the hearing aid circuit, by opening the battery door, when not in use, assures the device is turned off. Zinc-air batteries have a "shelf life" of up to three years when stored in a cool, dry environment.

Storing zinc-air hearing aids in the refrigerator has no beneficial effect on their shelf life. In fact -- quite the opposite may happen. The cold air may actually form little water particles under the sticker. If the water vapor creeps under the sticker, oxygen may contact the zinc and the battery could be totally discharged by the time you peel off the sticker! Therefore, the best place to store batteries is in a cool dry place, like the back of your sock drawer, not the fridge!

Searchwave - Hearing Aid Batteries