Types & Sizes Of Hearing Aid Batteries

The latest trend in hearing aids is the adoption and implementation of rechargeable battery technology. Most, if not all manufacturers are releasing hearing aids with rechargeability. However, the vast majority of hearing aids still use disposable batteries.

Hearing Aid Services

Hearing Aid Battery Sizes

There are typically four types/sizes of hearing aid batteries. They are 10, 312, 13 and 675. To help users remember their size, batteries are typically colour coded.

Size 10 is the smallest one and measures 5.8 mm x 3.6 mm. Its colour code is yellow.

Size 312 is the most common one and measures 7.9 mm x 3.6 mm. Its colour code is brown.

Size 13 is used more commonly for BTE hearing aids (Behind the ear) and measures) 7.9 mm x 5.4 mm. The bigger battery allows for larger charge capacity. Its colour code is orange.

Size 675 is the biggest hearing aid battery and is used for hearing aids that require super-power receivers for maximum output (e.g. 120 dB). It measures 11.6 mm x 5.4 mm. Its colour code is blue.

How often do I need to change batteries?

This is one of the most frequently asked questions by new hearing aid users. The answer varies depending on battery size and how often you use your hearing aids. The smaller hearing aid batteries need to be replaced more often than the larger ones.

Size 10 batteries last on average 3-5 days.
Size 312 batteries last on average 5-7 days.
Size 13 batteries last on average 7-10 days.
Size 675 batteries last on average 10-14 days. In some cases these batteries can even last up to three weeks.

At House of Hearing we carry top brand hearing batteries that will last an optimal length of time and will not be harsh on your hearing aids. Using premium hearing aid batteries is an essential part of keeping your hearing aids running at top spec throughout their lifetime.

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