It sounds obvious, but many users leave their hearing aids on while not wearing them. Even a few hours per day adds up. Turning them off at night or during long breaks helps conserve energy. If you're using rechargeable hearing aids, this habit can increase the total charge cycle lifespan too.

Contrary to old myths, hearing aid batteries should not be stored in the refrigerator. Zinc-air batteries are highly sensitive to moisture and temperature fluctuations. A dry drawer at room temperature is ideal to preserve shelf life and maintain peak performance.

The natural oils on your fingers can interfere with the battery’s activation and performance. Always handle batteries with a tissue or clean hands. Contamination is a hidden cause behind sudden drops in battery life for hearing aids.

Humidity is one of the biggest enemies of battery life and internal electronics. Using a hearing aid dehumidifier (like a dry box) removes moisture build-up, extends battery runtime, and reduces corrosion inside the battery compartment. Especially important in coastal and humid climates.

Zinc-air batteries activate once the tab is pulled, but they need time to fully ‘breathe’ before insertion. If inserted too early, they may underperform. Wait at least 60 seconds to ensure full activation — this simple step alone can add hours to battery life.

Even if unopened, batteries lose strength over time. Always check the expiry date before using, and avoid stockpiling more than 6 months in advance. Fresh batteries last longer and deliver more stable power — reducing the chances of premature drain.

If you're replacing batteries every 2–3 days, it may be time to switch. Rechargeable hearing aids eliminate the need for constant battery changes, are eco-friendly, and more reliable. Models from Bernafon, Signia, and Phonak now offer full-day performance on a single charge.

A type of hearing aid battery that activates when exposed to air. Found in most disposable hearing aids.

A hearing aid model that charges via dock or USB — avoids disposable batteries.

A small case that removes moisture from hearing aids overnight — extends both battery and device life.

The number of hours or days a battery powers your hearing aid before needing replacement or recharge.

A measure of battery capacity — the higher the mAh, the longer the battery can last under similar conditions.

See also: Drain, Charger Dock, Amplification, Current Draw, Voltage Drop

• How to Replace a Hearing Aid Battery Safely
• Rechargeable vs Disposable Hearing Aids – Which to Choose?
• Bernafon Battery Not Charging? Here's What to Check
• Free Battery Replacement at HearingGuru

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