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LR43 battery equivalent and size
LR43: 1.5 V alkaline button cell, 11.6 mm × 4.2 mm, about 90 mAh (135 mWh). Same battery: AG12, 186, LR1142. Also fits: SR43.
1.5 Vvoltage
11.6 mmdiameter, 0.46 in
4.2 mmthick, 0.165 in
≈ 90 mAhcapacity
LR43: what to know
- AG12 and 186 are the same cell; it is 1.2 mm thinner than the LR44, which shares its 11.6 mm width.
LR43 equivalents
AG12186LR1142
- 386: silver
- 301: silver
Can I use another battery instead of an LR43?
| Battery | Size | Volts | Works? | Why |
|---|---|---|---|---|
| SR43 | 11.6 mm × 4.2 mm | 1.55 V | Yes | Same size; silver oxide lasts longer (an upgrade). |
| LR1130 | 11.6 mm × 3.05 mm | 1.5 V | Short-term | 1.15 mm thinner: may sit loose; fine short-term. |
| SR1130SW | 11.6 mm × 3.05 mm | 1.55 V | Short-term | 1.15 mm thinner: may sit loose; fine short-term. |
| SR1136SW | 11.6 mm × 3.6 mm | 1.55 V | Short-term | 0.6 mm thinner: may sit loose; fine short-term. |
| LR44 | 11.6 mm × 5.4 mm | 1.5 V | No | 1.2 mm thicker: will not fit. |
What uses an LR43 battery?
- Calculators
- Toys
- Medical devices
Silver oxide version: SR43, about 120 mAh vs 90 mAh, steadier voltage: better for watches, calipers and thermometers.