Cochlear Implant , Size 675P

Power One Size 675P Batteries for Cochlear Implants

High-drain, mercury-free zinc-air cells designed for cochlear implant (CI) processors that specify 675P/CI batteries. Delivers stable 1.45 V output and high pulse capability for reliable sound performance.

When to choose these

• Your CI processor or battery holder explicitly requires 675P/CI cells (blue tab, PR44).
• You use power-intensive features such as streaming, telecoil, or high-stimulation programs.
• You need predictable performance in a range of temperatures and humidity.

Avoid or consider alternatives if

• Your processor uses a manufacturer-specific rechargeable battery module (use the approved pack instead).
• Your device manual calls for standard 675 hearing-aid cells only (675P may not be necessary).
• You want rechargeable use without swapping cells (choose the OEM rechargeable CI battery system if available).

Key specs

• Type: Zinc-air (mercury-free)
• Size: 675P (PR44), blue tab
• Voltage: 1.45 V
• Capacity: ~650 mAh per cell
• Dimensions: 11.6 mm diameter × 5.4 mm height
• Typical runtime: 2–7 days per cell/pair depending on processor, program, and streaming
• Packaging: 6-cell dial packs; bulk options commonly available (e.g., 60 or 300)
• Common cross-refs: 675P, PR44, ZA675, AC675, 675

675P vs. standard 675: what to know

• Same physical size; different performance tuning. 675P is optimized for high pulse currents typical of CI processors.
• Using standard 675 in a CI may shorten runtime or cause dropouts under load.
• Always follow the device manual; many CI battery holders require two 675P cells at a time.

Expected runtime (guidance)

• Speech-only use at moderate volume: about 3–7 days
• Frequent Bluetooth/streaming or noisy environments: about 1–4 days
• Cold, high altitude, or very humid conditions can shorten life; keep spares on hand for travel.

How to use for best performance

1. Peel the blue tab only when ready to use.
2. Wait 1–2 minutes before inserting to fully activate the zinc-air chemistry.
3. Insert with correct polarity; if your processor uses two cells, replace both together and do not mix brands or ages.
4. Keep the battery holder and contacts clean and dry; wipe with a soft, dry cloth if needed.

Care, storage, and disposal

• Store at room temperature, dry, in original packaging; do not refrigerate or leave in a hot car.
• Do not remove tabs until use; exposure to air starts the discharge.
• Carry spares in a case; avoid loose contact with metal objects (keys/coins).
• Recycle used cells where available; follow local regulations.

Safety notes

• Keep out of reach of children and pets; button battery ingestion is an emergency—seek immediate medical help.
• Do not recharge, disassemble, or incinerate zinc-air cells.
• If a cell leaks, handle with care and clean the holder before reuse.

FAQ

What does 675P mean?

It is the cochlear-implant-optimized version of Size 675 (PR44) with higher pulse capability for CI processors. Look for the blue tab and the 675P/CI designation.

How long will they last?

Most users see 2–7 days per cell or pair. Heavy streaming, high volume, and challenging listening environments reduce runtime.

Can I recharge these batteries?

No. Zinc-air cells are single-use. If you prefer rechargeable power, use your device maker's approved rechargeable CI battery pack.

Are 675P and standard 675 interchangeable?

They are the same size but not equivalent. CI processors typically require 675P; standard 675 hearing-aid cells may underperform in CIs.

Do I need to replace both batteries at once?

If your holder uses two cells, replace both together and avoid mixing brands or old and new cells to maintain balanced performance.