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Hearing Aid Batteries

Hearing aid batteries are the life of your hearing aids. They are available in two types: zinc-air and rechargeable. The most common type of battery is zinc-air. These batteries become activated as soon as you remove the factory-sealed sticker from the back of the battery, exposing it to oxygen. Rechargeable batteries have been available on the market for about a decade and are available in all sizes; however, not all hearing aids can take rechargeable batteries. Contact Stanwood Hearing to discuss what kind of power source your hearing aids will require. 

Both batteries are available in four sizes: 10, 312, 13 and 675. 

  • Size 10: 5.8 mm wide by 3.6 mm high
  • Size 312: 7.9 mm wide by 3.6 mm high 
  • Size 13: 7.9 mm wide by 5.4 mm high 
  • Size 675: 11.6 mm wide by 5.4 mm high 

It’s easy to forget the corresponding size number and measurement, which is why hearing aid battery manufacturers created a color-coded system to make it simple for consumers to remember. Corresponding colors and sizes are:

  • Size 10 batteries: Yellow label
  • Size 312 batteries: Brown label
  • Size 13 batteries: Orange label 
  • Size 675 batteries: Blue label 

Common types of hearing aid batteries include:

  • Size 13 batteries/Orange label: In-the-ear (ITE) hearing aids
  • Size 312 batteries/Brown label: Completely-in-canal (CIC) hearing aids
  • Size 10 batteries/Yellow label: In-the-canal (ITC) and CIC hearing aids
  • Size 675/Blue label: Behind-the-ear (BTE) hearing aids

Battery life corresponds to the size/color. The smaller the battery, the shorter the lifespan, while the larger sizes tend to last longer. 

  • Size 10/Yellow: 5.8 mm wide by 3.6 mm high – 80 hours
  • Size 312/Brown: 7.9 mm wide by 3.6 mm high – 175 hours
  • Size 13/Orange: 7.9 mm wide by 5.4 mm high – 240 hours
  • Size 675/Blue: 11.6 mm wide by 5.4 mm high – 300 hours

Battery care tips

Hearing aid batteries will need to be replaced regularly, but there are some tips and tricks that can help you get the most out of your devices:

  • Store extra hearing aid batteries at room temperatures. It’s best to avoid exposing or storing them to extreme heat or cold.
  • Wash and dry your hands thoroughly before changing hearing aid batteries. Materials like grease, dirt or grime could damage or corrode the battery or hearing aid. 
  • At night, allow the battery compartment of the hearing aid to breathe by keeping it open. Doing so helps to avoid corrosion and damage.
  • Remove dead batteries from the hearing aid immediately.
  • When not wearing your hearing aids, make sure to turn them off. Additionally, remove the battery from the device if you’re not wearing it for a long period of time.