Important Information About Hearing Aid Batteries
The primary benefit of rechargeable hearing aid batteries is convenience. They are particularly beneficial for individuals with concerns about finger dexterity or arthritis. Moreover, the environmental impact of rechargeable batteries cannot be overlooked. Most rechargeable batteries use lithium-ion, a material that is safer than other battery types. Lithium-ion batteries do not contain mercury or cadmium and are less susceptible to overheating and short-circuiting.
However, it’s important to note that the onboard batteries in rechargeable hearing aids need to be changed by a hearing professional or the manufacturer who built the casing. They also can take several hours to charge, require specific chargers, and access a power source. Hearing aid charges must be used properly and the hearing aids seater securely in order to charge correctly.
It’s crucial to handle all hearing aid batteries with care to ensure safety and optimal performance:
- Zinc-Air Technology: Non-rechargeable hearing aid batteries use zinc-air technology. They are air-activated, meaning they remain inactive until the factory-sealed sticker is removed. Once exposed to air, oxygen interacts with the zinc inside the battery, activating it. It’s essential to note that reapplying the sticker does not extend the battery life.
- Battery Storage: Zinc-air batteries have a shelf life of up to three years when stored in a cool, dry environment. Avoid storing them in the refrigerator, as cold air can lead to the formation of water particles under the sticker. This moisture can cause premature discharge of the battery. The ideal storage location for batteries is a cool, dry place, such as the back of a sock drawer.
- Battery Lifespan: The typical lifespan of hearing aid batteries ranges from 7 to 14 days based on a 16-hour per day usage cycle. These batteries are cost-effective, usually priced at less than a dollar each. Generally, smaller-sized batteries have shorter lifespans.
- Battery Sizes and Codes:
◦ Size 5: RED
◦ Size 10 (or 230): YELLOW
◦ Size 13: ORANGE
◦ Size 312: BROWN
◦ Size 675: BLUE - Safety Precautions: All batteries, including hearing aid batteries, are toxic and hazardous if swallowed. Keep batteries (and hearing aids) out of reach of children and pets. If someone swallows a battery, seek immediate medical attention from a physician.
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