Hearing Aid Batteries

Batteries power hearing aid technology. Your hearing aids can use either rechargeable or disposable batteries. When your batteries are low on power, they can’t provide the energy necessary to operate your devices at an optimum level.

That’s why you should change disposable batteries regularly and recharge rechargeable batteries before they are completely drained. Hearing Science of the Foothills makes it easy to maintain your battery supply. We carry all popular hearing aid battery sizes, and the hearing aid specialist can even help you if you have trouble replacing the batteries.

Hearing aid battery types

Hearing aid batteries are available in two different types: disposable and rechargeable. There a few rechargeable hearing aid models that can operate on disposable batteries, but they are the exception. At your hearing aid fitting appointment, the hearing aid specialist at Hearing Science of the Foothills will teach you basic hearing aid maintenance, including changing or recharging the batteries. 

Disposable batteries

Zinc-air technology produces the energy in disposable hearing aid batteries. Oxygen from the air starts a reaction that generates an electrical charge powerful enough to operate your digital devices. To ensure your disposable batteries work best, it’s important to keep them away from oxygen until ready to use. That’s why you should keep the battery tab in place until it’s time to use the battery.

When you change the battery, pull off the tab and then wait two minutes, so the battery is exposed to air. Now that you’ve activated the battery, simply place it in your hearing aid. Battery life depends on factors such as the battery size, the style of hearing aid you wear, the length of daily wear and the number of functions you operate.

Most hearing aids with cellphone apps track your battery level and tell you when it’s time for a battery change; other hearing aids will emit a chirping noise.

Rechargeable batteries

Most rechargeable hearing aid batteries utilize lithium-ion technology to generate the energy to operate your hearing aids. Charge your hearing aid batteries by docking the devices in their charging station overnight.

Charging hearing aid batteries is no more difficult than charging your cell phone. And, if you forget to charge overnight, most models will generate a 6 to 8-hour charge in less than an hour. Rechargeable batteries are ideal for those with vision and dexterity issues that make it difficult to handle small items, such as button-sized batteries and small battery doors.

Hearing aid battery sizes

Disposable batteries are identified by size and color. It’s easy to remember the hearing aid battery you need; just remember the color. Hearing aid battery sizes are consistent no matter who manufacturers the hearing aid. At Hearing Science of the Foothills, you’ll find every size and color of disposable hearing aid batteries.

  • Yellow: Size 10 lasts three to seven days; the smallest battery goes in the smallest hearing aids
  • Brown: Size 312 lasts three to 10 days and is the most commonly used battery in the United States
  • Orange: Size 13 lasts six to 10 days and is frequently used fo behind-the-ear and in-the-ear styles
  • Blue: Size 675 – lasts three to 20 days and is the largest battery for the largest hearing aids