SR754SW Battery Equivalent
SR754SW is the same cell as SG5, 309, 393 and SR48, so any of those codes will fit; LR48 is the same size in alkaline and will work, though it runs out sooner.
- Chemistry
- silver oxide
- Voltage
- 1.55 V
- Size (Ø × H)
- 7.9 × 5.4 mm
- Typical capacity
- 80 mAh
IEC designation SR754. Sold as 309 ( low drain, SW) and 393 ( high drain, W) .
SR754SW equivalents
Direct replacements
The same cell under another code. Any of these fits, whatever the brand.
- SG5
- 309 · Low drain (SW)
- 393 · High drain (W)
- SR48
- SR754
Upgrade or downgrade
Same size, different chemistry. Read the verdict before you buy.
| Cell | Chemistry | Voltage | Verdict |
|---|---|---|---|
| LR48 | alkaline | 1.5 V | Downgrade Works, but runs out sooner. Avoid in watches and medical devices. |
Similar size, check the fit
Same diameter, different thickness. These are not drop-in replacements.
| Cell | Size | Verdict |
|---|---|---|
| SR41 | 7.9 × 3.6 mm | Same 7.9 mm diameter, but 3.6 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR712SW | 7.9 × 1.2 mm | Same 7.9 mm diameter, but 1.2 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR714SW | 7.9 × 1.4 mm | Same 7.9 mm diameter, but 1.4 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR716SW | 7.9 × 1.65 mm | Same 7.9 mm diameter, but 1.65 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR721SW | 7.9 × 2.1 mm | Same 7.9 mm diameter, but 2.1 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR726SW | 7.9 × 2.6 mm | Same 7.9 mm diameter, but 2.6 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact. |
| SR731SW | 7.9 × 3.1 mm | Same 7.9 mm diameter, but 3.1 mm tall instead of 5.4 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.
-
13
Zinc-air hearing-aid cell: same size, but 1.45 V, needs air holes and drains once unsealed.
Low drain or high drain
SR754SW is sold under two numbers for the same case size. Manufacturers mark low-drain cells SW and high-drain cells W, which records what the cell is built to deliver rather than how big it is.
- Low drain (SW): 309
- A steady trickle of current: a quartz watch with hands, a thermometer, a key fob.
- High drain (W): 393
- Short bursts of heavier current: a watch with a backlight, an alarm or a chronograph.
Both are 1.55 V and both fit the same holder, so either will run the device. The matched one lasts longer.
About the SR754SW cell
On the shelf it is sold with a SR754 on the pack .
SR754SW questions
- Is SG5 the same as SR754SW?
- Yes. SG5 is another code for the same cell: silver oxide, 1.55 V, 7.9 × 5.4 mm.
- Is 309 the same as SR754SW?
- Yes. 309 is another code for the same cell: silver oxide, 1.55 V, 7.9 × 5.4 mm.
- Can I use LR48 instead of SR754SW?
- Works, but runs out sooner. Avoid in watches and medical devices.
- Will SR41 work in place of SR754SW?
- Same 7.9 mm diameter, but 3.6 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact.
- Will SR712SW work in place of SR754SW?
- Same 7.9 mm diameter, but 1.2 mm tall instead of 5.4 mm. Only if the holder fits; thinner cells can lose contact.
- Can I use 13 instead of SR754SW?
- No. Zinc-air hearing-aid cell: same size, but 1.45 V, needs air holes and drains once unsealed.
- What voltage is SR754SW?
- SR754SW is a 1.55 V silver oxide cell with a typical capacity of 80 mAh.
- What size is SR754SW?
- 7.9 mm across and 5.4 mm thick.