395 Battery Equivalent
395 is the SR927SW cell: 1.55 V silver oxide, 9.5 × 2.7 mm, so anything marked SG7, 399, SR927W and SR57 is the same battery and will fit.
Full SR927SW page: every equivalent, the sizes and what not to use
- Chemistry
- silver oxide
- Voltage
- 1.55 V
- Size (Ø × H)
- 9.5 × 2.7 mm
- Typical capacity
- 53–55 mAh
IEC designation SR927. Sold as 395 ( low drain, SW) and 399 ( high drain, W) .
What the 395 code is
395 is one of the three-digit numbers Energizer and Renata use for silver-oxide watch cells. The digits encode nothing about the size, which is why a 395 and its IEC name look unrelated.
The IEC code for the same cell is SR927SW: silver oxide, 1.55 V, 9.5 × 2.7 mm.
395 is the low-drain number for SR927SW: built for a steady trickle, such as a plain quartz watch movement. The same case size is also sold as 399, the high-drain number. Both are 1.55 V and both fit the same holder.
SR927SW equivalents
Direct replacements
The same cell under another code. Any of these fits, whatever the brand.
- SG7
- 395 · Low drain (SW)
- 399 · High drain (W)
- SR927W
- SR57
- SR927
Upgrade or downgrade
Same size, different chemistry. Read the verdict before you buy.
| Cell | Chemistry | Voltage | Verdict |
|---|---|---|---|
| LR927 | 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 |
|---|---|---|
| SR45 | 9.5 × 3.6 mm | Same 9.5 mm diameter, but 3.6 mm tall instead of 2.7 mm. Only if the holder fits; thinner cells can lose contact. |
| SR916SW | 9.5 × 1.6 mm | Same 9.5 mm diameter, but 1.6 mm tall instead of 2.7 mm. Only if the holder fits; thinner cells can lose contact. |
| SR920SW | 9.5 × 2 mm | Same 9.5 mm diameter, but 2 mm tall instead of 2.7 mm. Only if the holder fits; thinner cells can lose contact. |
395 questions
- What battery is 395?
- 395 is the SR927SW: a 1.55 V silver oxide cell, 9.5 × 2.7 mm, with a typical capacity of 53–55 mAh.
- Is 395 the same as SR927SW?
- Yes. They are two codes for one cell, so a pack marked either way holds the same battery.
- Is 395 low drain or high drain?
- 395 is the low-drain number for SR927SW: built for a steady trickle, such as a plain quartz watch movement. The same case size is also sold as 399, the high-drain number. Both are 1.55 V and both fit the same holder.
- What can I use instead of 395?
- Any code in the direct replacement list above. LR927 is the same size in another chemistry: Works, but runs out sooner. Avoid in watches and medical devices.
- What voltage is 395?
- 1.55 V, the same as any other SR927SW.