5 Battery Equivalent (Hearing Aid)
5 is the same cell as AC5, ZA5 and PR63, so any of those codes will fit; no other cell here is 5.8 × 2.5 mm at 1.5 V.
- Chemistry
- zinc air (hearing aid)
- Voltage
- 1.45 V
- Size (Ø × H)
- 5.8 × 2.5 mm
- Typical capacity
- 33 mAh
IEC designation PR63.
5 equivalents
Direct replacements
The same cell under another code. Any of these fits, whatever the brand.
- Red tab
- AC5
- ZA5
Similar size, check the fit
Same diameter, different thickness. These are not drop-in replacements.
| Cell | Size | Verdict |
|---|---|---|
| 10 | 5.8 × 3.6 mm | Same 5.8 mm diameter, but 3.6 mm tall instead of 2.5 mm. Only if the holder fits; thinner cells can lose contact. |
About the 5 cell
Activate by removing the tab; not a substitute for alkaline/silver cells of the same size.
On the shelf it is sold with a Red tab on the pack : the tab seals the air holes, and the cell starts working, and running down, the moment you pull it off .
5 questions
- Is AC5 the same as 5?
- Yes. AC5 is another code for the same cell: zinc air (hearing aid), 1.45 V, 5.8 × 2.5 mm.
- Is ZA5 the same as 5?
- Yes. ZA5 is another code for the same cell: zinc air (hearing aid), 1.45 V, 5.8 × 2.5 mm.
- Will 10 work in place of 5?
- Same 5.8 mm diameter, but 3.6 mm tall instead of 2.5 mm. Only if the holder fits; thinner cells can lose contact.
- What voltage is 5?
- 5 is a 1.45 V zinc-air cell with a typical capacity of 33 mAh.
- What size is 5?
- 5.8 mm across and 2.5 mm thick, the same case size as the PR63 designation.