Duracell Hearing Aid Battery 312 (DA312) — Long-Lasting Zinc-Air Power for Modern Hearing Devices

The Duracell 312 (DA312) is a compact zinc-air hearing aid battery engineered for clear, consistent audio in today’s miniature hearing instruments. Recognized by its brown tab, Size 312 supports popular behind-the-ear (BTE), receiver-in-canal (RIC), and in-the-ear (ITE) models that balance discretion with performance. Whether you’re taking calls, streaming audio, or spending a full day in conversation-heavy environments, a fresh 312 provides stable voltage delivery designed to keep amplification smooth and feedback control responsive.

Why Choose Size 312?

• Reliable sound quality: Zinc-air chemistry provides a flat discharge profile that helps maintain consistent amplification and clarity.
• Discreet footprint: The compact can fits small, modern designs without adding bulk or weight.
• Steady voltage for features: Supports digital noise reduction, directional microphones, and everyday streaming in compatible devices.
• Trusted fit: Size 312 is widely specified by leading hearing instrument manufacturers.

How Zinc-Air Batteries Work

Hearing aid cells use oxygen to generate power. They are inactive while sealed. Once you remove the brown tab, air enters through tiny ports, activating the chemistry. Give the battery a short breathing period before use for best results—many users wait about a minute—then install. Re-sealing with the tab will not stop the reaction; once activated, the cell will continue to age, so only peel when you’re ready to use it.

Typical Uses

• RIC and mini-BTE devices designed around Size 312
• Small ITE models that need strong daily runtime
• Hearing aids that support phone and media streaming

Technical Snapshot

• Chemistry: Zinc-air
• Nominal voltage: ~1.45 V
• Designation: 312 / PR41 (brown tab)
• Intended use: Primary (single-use) hearing aid cell

Installation Tips

1. Remove the brown tab and let the battery “breathe” briefly.
2. Open the hearing aid battery door and match polarity (“+” faces the door on most models).
3. Seat the cell flat; close the door gently without forcing.
4. Run a quick listening check for both quiet and noisy environments.

Maximizing Runtime

• Open the battery door overnight (if your audiologist recommends it) to reduce drain when not in use.
• Mute or use low-power programs in quiet settings if your device provides those options.
• Keep ports clean: Avoid oils, moisture, and debris around air holes and contacts.
• Temperature care: Store spares at room temperature; avoid hot cars or bathrooms with steam.

Troubleshooting

• Weak or distorted sound: Re-seat the cell and ensure the battery door fully latches; check for moisture or wax near contacts.
• Short life: Heavy streaming, loud environments, or feedback suppression can increase draw—carry fresh spares.
• Intermittent power: Inspect spring contacts for debris; gently wipe the battery surface with a dry, lint-free tissue.

Safety & Handling

• Keep batteries away from children and pets; button batteries can be hazardous if swallowed.
• Do not store loose cells with metal objects; use the original pack.
• Recycle or dispose of used cells responsibly according to local guidance.

FAQs

How long does Size 312 last?

Runtime varies with device settings, amplification needs, and streaming. Many users get multiple days per cell; high-feature use can reduce that.

Can I refrigerate hearing aid batteries?

No. Room-temperature storage in a dry place is recommended; condensation can impair performance.

Are 312 and PR41 the same?

Yes. PR41 is a standard code for Size 312 (brown tab).

Summary

Duracell 312 (DA312) combines dependable zinc-air chemistry with a compact size favored by modern hearing aids. Activate only when ready, install carefully, and practice good storage habits to enjoy stable, clear sound throughout your day.