Button cells · 1.55 V
SR920SWequivalents
The SR920SW is also sold as 371, 370, AG6, LR920 and SR920. They are the same cell under different brand and standard names, so any of them fits.
Same battery, other names
- 371
- 370
- AG6
- LR920
- SR920
Size and specs
- Voltage
- 1.55 V
- Size
- 9.5 × 2.1 mm
- Chemistry
- Silver oxide. AG6 and LR920 are alkaline versions of the same size.
- Capacity
- about 40 to 50 mAh
- Type
- Button cells
SR920SW by brand
Each maker's part number for this size, from the Maxell button battery cross-reference guide. All of them fit the same devices.
| Brand | Low drainSR920SW | High drainSR920W |
|---|---|---|
| Energizer | 371 | 370 |
| Duracell | D371 | D370 |
| Rayovac | 371 | – |
| Renata | 371 | 370 |
| Varta | V371 | – |
| Maxell | SR920SW | SR920W |
| Seiko | SB-AN | SB-BN |
| Citizen | 280-31 | 280-51 |
Good to know
- 371 is the low-drain version for plain analogue watches, and 370 is the high-drain version for watches with a light or alarm.
- Use silver oxide in a watch. An alkaline cell's voltage sags and the watch can lose time.
Questions
What is the equivalent of a 371 watch battery?
The SR920SW is also sold as 371, 370, AG6, LR920 and SR920. They are the same cell under different brand and standard names, so any of them fits.
What size is a 371 watch battery?
9.5 × 2.1 mm, 1.55 V. Silver oxide. AG6 and LR920 are alkaline versions of the same size.
What do Energizer, Duracell, Varta and Renata call the SR920SW?
Energizer: 371 and 370. Duracell: D371 and D370. Varta: V371. Renata: 371 and 370. Other brands are in the table above.
Is a 371 battery the same as an SR920SW?
Yes. 371 is the common name for the SR920SW silver oxide watch cell. The 370 (SR920W) is the same size, made for watches that draw more current.
Battery Inventory for iPhone and iPad
Never look up the SR920SW again.
Battery Inventory remembers which battery every device in your home takes, reminds you when one is due, and counts the spares in your drawer, so you buy the right cell before the old one dies. The finder in the app knows every code on this page. Search any of them, or point the camera at a coin cell to read it.
- Battery change reminders, free
- Monthly smoke and CO alarm test reminders
- A spares drawer and shopping list
- Cordless tool packs and chargers too
No account needed. Smoke and CO alarm features are reminders only: the app can't see or test your alarms.
