Duracell Hearing Aid Battery Size 675 (DA675)

Overview

Duracell Hearing Aid Battery Size 675 (DA675) is a high-capacity zinc-air cell designed for devices that require strong, steady power—most commonly power behind-the-ear (BTE) hearing aids and certain cochlear implant processors. The blue tab identifies the 675 size (also known as PR44). Choose this size only if your device specifically calls for 675.

Who Should Choose Size 675

• Power BTE hearing aids that specify 675 batteries.
• Users who rely on strong amplification, frequent streaming, or long daily wear.
• Some cochlear implant processors that accept size 675 cells (confirm with your device manual; some require implant-labeled 675).

What to Expect: Runtime

Actual runtime varies by device, programs, and ambient temperature. Typical daily wear of 12–16 hours:

• Light/moderate amplification, minimal streaming: about 7–14 days.
• High amplification or frequent streaming: about 3–7 days.
• Cochlear implant processors using 675: about 1–3 days.

Shorter runtimes can occur with continuous wireless use, noisy environments, or very dry/cold conditions.

Pros and Considerations

• Pros: Large capacity for longer intervals between changes; stable voltage supports advanced features.
• Considerations: Larger form factor; not rechargeable; only works in devices designed for 675.

Activation and Installation

1. Peel the blue tab and wait 1–2 minutes to air-activate.
2. Insert with the “+” side matching the device diagram.
3. Close the battery door gently and confirm startup tones or clear audio.

Ways to Extend Runtime

• Open the battery door or power down when not in use, especially overnight.
• Use quieter or economy programs when appropriate; heavy streaming and noise reduction consume more power.
• Keep the device clean and dry; blocked microphones/receivers may increase power draw.
• Do not remove tabs until you are ready to use; once activated, unused batteries age faster.

Compatibility Notes

• Size codes: 675, PR44, DA675; color: blue.
• Approx. dimensions: 11.6 mm diameter × 5.4 mm height.
• Chemistry: zinc-air; nominal voltage ~1.45 V; single-use (not rechargeable).
• Not interchangeable with sizes 10, 312, or 13. Check your user manual before purchase.

Troubleshooting

• Early low-battery alerts: Ensure a full 1–2 minute activation before insertion; re-seat the cell and clean contacts.
• Dropouts during streaming: Replace the battery and confirm the door is fully closed.
• Moisture exposure: Let the device dry fully before inserting a fresh battery; consider a drying kit.

Safety and Disposal

• Keep out of reach of children and pets; batteries are a choking and ingestion hazard. If swallowed, seek immediate medical care or call Poison Control (US: 800-222-1222).
• Store at room temperature in original packaging—do not refrigerate or carry loose with coins/keys.
• When spent, tape the battery’s flat side before disposal and follow local recycling or disposal rules.

FAQs

Is PR44 the same as Size 675?

Yes. PR44, 675, and DA675 refer to the same size, typically marked with a blue tab.

How long should I wait after removing the tab?

Wait 1–2 minutes to allow air activation before inserting the battery.

Will a larger battery improve sound quality?

It won’t change the tuning, but the higher capacity helps advanced features run consistently throughout the day.

Can I use these in a cochlear implant?

Many processors accept 675 cells, but some specify implant-labeled 675 batteries. Check your device manual for compatibility.

How do I know it’s time to replace?

Beeping alerts, softer volume, distortion, or intermittent audio are common signs; replace the battery and test again.