LR43 battery equivalent
Also sold as LR43. 1.5 V that sags as it drains. Fine for toys and lights; a poor watch substitute.
Equivalents by brand
| Brand | Number |
|---|---|
| Renata | LR43 |
| Energizer / Eveready | 186 |
| Maxell / Panasonic / Sony | LR43 |
| Varta | V12GA |
| Rayovac | RW84 |
| Duracell | LR43 |
| Philips | 186 |
| IEC | LR43 |
| IEC size | LR1142 |
Also known as
What it fits
Toys, LED lights, and non-critical electronics. Prefer 301/386 silver oxide in watches.. Confirm the printed number or measure the old cell before you buy — a 0.5 mm height difference will not seat correctly.
IEC names encode chemistry and size. SR is silver oxide, LR is alkaline, and CR is 3 V lithium. The digits are diameter and height in tenths of a millimeter, so LR43 is about 11.6 mm across and 4.2 mm thick.
Same size, different chemistry
These fit the same cavity but are not true equivalents. Voltage and discharge curve differ — do not use them as a silent swap in a quartz watch.
FAQ
What battery replaces a LR43?
Any of these are common equivalents: LR43, 186, V12GA, RW84, LR1142, AG12. They are 1.5 V alkaline cells, 11.6 × 4.2 mm.
Is LR43 the same as LR43?
LR43 is the usual catalog name for this size.
What devices use a LR43?
Toys, LED lights, and non-critical electronics. Prefer 301/386 silver oxide in watches.