Discount Hearing Aid Batteries

Hearing Aid Batteries (zinc air)

Hearing aid batteries are an essential and ongoing necessity for every hearing aid user. Zinc-air hearing aid batteries are the most common type of hearing aid battery in use today. Hearing aid batteries are disposable and manufactured by only a few different large battery manufacturers. Most zinc-air hearing aid batteries manufactured today are mercury-free.

Zinc-air batteries are air-activated, a sticker allows them to remain inactive until it is removed. Once this sticker is removed from the battery, oxygen interacts with the zinc inside the battery and it begins to activate. The best performance from a zinc-air hearing aid battery is achieved by waiting five (5) minutes after removing the sticker before inserting the battery into your hearing aid, this allows the hearing aid battery to fully charge before use. Replacing the sticker on the battery will not deactivate or make the battery last longer, once the sticker is removed, the battery will remain in an active state until the battery is dead.

Generally, zinc-air hearing aid batteries remain usable for up to three years after manufacture when stored at room temperature in a dry environment. Usually, there is a “Best if used by” date printed somewhere on the packaging. Storing hearing aid batteries in the refrigerator has no benefit and may cause condensation to form under the sticker, which may reduce battery life. Do not store your hearing aid batteries in your car as the heat generated in the car may damage the battery.


size 10
size 10 dimensions

SIZE 312

size 312 battery
size 312 dimensions


size 13
size 13 dimensions

SIZE 675

size 675
size 675

Hearing aid batteries (zinc-air) come in four basic sizes.

From smallest to largest: 10, 312, 13, and 675.

  • Size 10 – 5.8 mm wide by 3.6 mm high – Box of 80
  • Size 312 – 7.9 mm wide by 3.6 mm high – Box of 80
  • Size 13 – 7.9 mm wide by 5.4 mm high – Box of 80
  • Size 675 – 11.6 mm wide by 5.4 mm high – Box of 60

Hearing aid battery size differences may be hard to discern, so the packaging is color-coded to help distinguish the different sizes.

  • Size 10 hearing aid batteries – yellow label
  • Size 312 hearing aid batteries – brown label (most common in the U.S.)
  • Size 13 hearing aid batteries – orange label
  • Size 675 hearing aid batteries – blue label

Hearing Aid Battery Life

Hearing aid batteries generally last from five to 14 days, based on how many hours a day they are used, also the type and power level of the hearing aid worn. Typically, the smaller the battery, the shorter the battery life.

Extending Hearing Aid Battery Life

There aren’t any foolproof ways to extend hearing aid battery life, but these simple tips will help.

  • Turn your hearing aids off when not in use
  • Leave the hearing aid battery door open overnight
  • Store hearing aid batteries at room temperature (not in an automobile)
  • Keep hearing aid batteries dry
  • Leave the sticker on the battery until ready to use
  • Wait 5 minutes after removing the sticker before inserting it into your hearing aid.

Silver Oxcide or Silver-Zinc Rechargeable Hearing Aid Batteries

Silver Oxide (Silver-zinc or AgZn) rechargeable hearing aid batteries have been used in other forms for years in military and aerospace applications. The basic structure of a silver-oxide battery is similar to a conventional zinc-air hearing aid battery. It consists of a zinc anode and a silver oxide (AgO) cathode.

Silver-oxide batteries have a higher energy density than zinc-air batteries while maintaining a good discharge rate capability. They are non-flammable and fully recyclable. Since they come with the same form factors as traditional zinc-air batteries, it is sometimes assumed that they are interchangeable. This is not the case, and the wrong use of silver-oxide batteries will seriously damage hearing aids not specifically designed for their use. 

Current silver-oxide hearing aid batteries last approximately one year and should be replaced annually.


Hearing Aid Battery Brands

Rayovac, Renata/Maratone, Energizer, Duracell, Power One, and Panasonic, are all common hearing aid battery brands available in the United States. However, many hearing aid battery manufacturers “private label” batteries wholesale to hearing aid manufacturers, hearing care professionals, drug stores, or big box retail stores, and the hearing aid batteries on their shelves may carry the brand name that they sell under.

If a hearing aid battery is ingested, call the National Battery Ingestion Hotline at 1-202-625-3333

Regardless of the brand, most hearing aid batteries are made by large battery manufacturers that produce other types of batteries for all types of electronics.

Where to Purchase Discount Hearing Aid Batteries

Hearing aid batteries are generally available in mass retail stores, pharmacies, grocery stores, electronics stores, and through online retailers, such as

HearSource offers discounted pricing on hearing aid batteries.

Because HearSource sells a lot of hearing aid batteries and turns over our stock quickly, our batteries are generally fresher and may last longer than hearing aid batteries purchased elsewhere. HearSource can save you money on your hearing aid battery purchases. Your hearing aid batteries will be shipped directly to you, saving you both money and a trip to the store.

Discount Hearing Aid Batteries From HearSource

The use of any manufacturer’s logo or name and other relevant educational materials on this website is purely for informational purposes about the products we offer for sale.