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Size 675 hearing aid battery (blue)
Size 675: 1.45 V zinc-air hearing aid battery, 11.6 mm × 5.4 mm, about 620 mAh (899 mWh). Same battery: PR44, A675, 675A, ZA675.
1.45 Vvoltage
11.6 mmdiameter, 0.46 in
5.4 mmthick, 0.213 in
≈ 620 mAhcapacity
Size 675: what to know
- Size 675 is the largest, at 11.6 mm × 5.4 mm: the same footprint as an LR44 but a different chemistry and voltage.
Size 675 equivalents
PR44A675675AZA675
Can I use another battery instead of a Size 675?
| Battery | Size | Volts | Works? | Why |
|---|---|---|---|---|
| SR1136SW | 11.6 mm × 3.6 mm | 1.55 V | No | Hearing aids need zinc-air cells. |
| LR43 | 11.6 mm × 4.2 mm | 1.5 V | No | Hearing aids need zinc-air cells. |
| SR43 | 11.6 mm × 4.2 mm | 1.55 V | No | Hearing aids need zinc-air cells. |
| LR44 | 11.6 mm × 5.4 mm | 1.5 V | No | Hearing aids need zinc-air cells. |
| SR44 | 11.6 mm × 5.4 mm | 1.55 V | No | Hearing aids need zinc-air cells. |
What uses a Size 675 battery?
- Power behind-the-ear hearing aids
- Some cochlear implant sound processors (special high-power 675 cells)
Guides: hearing aid
Tab colour blue. Pull the tab only when needed and wait a minute before closing the door. About 2+ weeks of daily wear.