LR41 battery size
7.9 × 3.6 mm
1.5 V · Alkaline · Coin cell · also sold as AG3, 392, SR41, L736
About the LR41
A small alkaline button cell in thermometers, small torches and hearing-aid-sized devices. Also sold as AG3, 192 and 392 depending on the chemistry and the vendor.
The numbers
| Diameter | 7.9 mm · 0.31 in |
| Thickness | 3.6 mm · 0.14 in |
| Nominal voltage | 1.5 V |
| Chemistry | Alkaline |
| Other names | AG3, 392, SR41, L736 |
Other coin cell sizes
| Cell | Size | Voltage |
|---|---|---|
| CR2032 | 20 × 3.2 mm | 3 V |
| CR2025 | 20 × 2.5 mm | 3 V |
| CR2016 | 20 × 1.6 mm | 3 V |
| CR2450 | 24 × 5 mm | 3 V |
| CR1220 | 12 × 2 mm | 3 V |
| CR1620 | 16 × 2 mm | 3 V |
| CR1632 | 16 × 3.2 mm | 3 V |
| LR44 | 11.6 × 5.4 mm | 1.5 V |
| LR1130 | 11.6 × 3.1 mm | 1.5 V |
Frequently asked questions
What size is a LR41 battery?
7.9 mm across and 3.6 mm thick — 0.31 × 0.14 inches.
What voltage is a LR41?
1.5 V (Alkaline).
What is another name for a LR41?
AG3, 392, SR41, L736 — all the same cell.
Is the LR41 rechargeable?
Not in this chemistry. Alkaline cells of this size are single-use; recharging one is a fire risk rather than a saving.