LR43 Battery Equivalent
LR43 is the same cell as 186, AG12, L1142 and LR1142, so any of those codes will fit; SR43 is the same size in silver oxide and holds a steadier voltage for longer.
- Chemistry
- alkaline
- Voltage
- 1.5 V
- Size (Ø × H)
- 11.6 × 4.2 mm
- Typical capacity
- 80 mAh
IEC designation LR1142.
LR43 equivalents
Direct replacements
The same cell under another code. Any of these fits, whatever the brand.
- 186
- AG12
- L1142
- LR1142
Upgrade or downgrade
Same size, different chemistry. Read the verdict before you buy.
| Cell | Chemistry | Voltage | Verdict |
|---|---|---|---|
| SR43 | silver oxide | 1.55 V | Upgrade Upgrade: steadier voltage, longer life. |
Similar size, check the fit
Same diameter, different thickness. These are not drop-in replacements.
| Cell | Size | Verdict |
|---|---|---|
| LR1120 | 11.6 × 2.1 mm | Same 11.6 mm diameter, but 2.1 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact. |
| LR1130 | 11.6 × 3.1 mm | Same 11.6 mm diameter, but 3.1 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact. |
| LR44 | 11.6 × 5.4 mm | Same 11.6 mm diameter, but 5.4 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact. |
Do not use
These are the same size or a similar code, and they are not equivalents.
-
AC41E
Zinc-air hearing-aid cell: same size, but 1.45 V, needs air holes and drains once unsealed.
About the LR43 cell
Alkaline version of the same size; voltage sags as it drains.
LR43 questions
- Is 186 the same as LR43?
- Yes. 186 is another code for the same cell: alkaline, 1.5 V, 11.6 × 4.2 mm.
- Is AG12 the same as LR43?
- Yes. AG12 is another code for the same cell: alkaline, 1.5 V, 11.6 × 4.2 mm.
- Can I use SR43 instead of LR43?
- Upgrade: steadier voltage, longer life.
- Will LR1120 work in place of LR43?
- Same 11.6 mm diameter, but 2.1 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact.
- Will LR1130 work in place of LR43?
- Same 11.6 mm diameter, but 3.1 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact.
- Can I use AC41E instead of LR43?
- No. Zinc-air hearing-aid cell: same size, but 1.45 V, needs air holes and drains once unsealed.
- What voltage is LR43?
- LR43 is a 1.5 V alkaline cell with a typical capacity of 80 mAh.
- What size is LR43?
- 11.6 mm across and 4.2 mm thick.