Important Information About Hearing Aid Batteries
Hearing aid batteries play a critical role in keeping your devices working reliably throughout the day. Today’s hearing aids commonly use rechargeable hearing aid batteries, offering a more convenient and sustainable alternative to traditional disposable options.
Understanding how different battery types work and how to care for them properly – helps prevent interruptions, protects device performance, and supports long-term hearing health.
Rechargeable hearing aid batteries are popular for their ease of use and reduced maintenance. They are especially helpful for individuals with finger dexterity challenges or arthritis, as they eliminate the need for frequent battery changes.
Most rechargeable hearing aids use lithium-ion batteries, which are:
Free from mercury and cadmium
More stable and less prone to overheating
Environmentally responsible compared to disposable batteries
However, rechargeable batteries do require some planning. They need:
Dedicated charging docks
Several hours to fully recharge
Proper placement in the charger to function correctly
Because rechargeable batteries are sealed inside the hearing aid, battery replacement must be handled by a hearing professional or the manufacturer. Regular check-ups help ensure charging performance remains accurate over time.
It’s crucial to handle all hearing aid batteries with care to ensure safety and optimal performance:
- Zinc-Air Technology (Disposable Batteries): Disposable hearing aid batteries rely on zinc-air technology. Once the factory seal is removed, oxygen activates the battery. Reapplying the sticker does not extend battery life, so it’s best to wait a few minutes after removing the seal before inserting the battery.
- Battery Storage: Store batteries in a cool, dry place. Avoid refrigeration – moisture exposure can cause early discharge. A drawer or storage case away from humidity works best.
- Battery Lifespan: Most disposable hearing aid batteries last 7–14 days, assuming about 16 hours of daily use. Smaller batteries typically drain faster than larger sizes.
- Battery Sizes and Codes:
◦ Size 5: RED
◦ Size 10 (or 230): YELLOW
◦ Size 13: ORANGE
◦ Size 312: BROWN
◦ Size 675: BLUE - Safety Precautions: All hearing aid batteries are hazardous if swallowed. Always keep batteries and hearing aids out of reach of children and pets. If ingestion occurs, seek immediate medical attention.
By following proper charging, storage, and handling practices, hearing aid batteries can deliver dependable performance day after day. If you notice reduced battery life, charging issues, or inconsistent sound, professional support can help identify the cause and restore reliability.
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