---
title: "SR927SW equivalent: 395, 399, SR57"
description: "The SR927SW is a 1.55 V silver oxide cell, also sold as 395, 399, SR57. Full equivalents, what does not substitute, and where it is used."
url: https://atoneplace.net/battery/sr927sw/
site: "At One Place"
---

# SR927SW battery

**What replaces a SR927SW: 395, 399, SR57, SR927, SR927W, SR926**

1.55 V silver oxide, 9.5 × 2.6 mm (diameter × height)

The SR927SW is a single-use 1.55 V silver oxide button cell. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

## Specification

- **IEC designation:** SR927SW
- **ANSI / NEDA:** 1162SO
- **Nominal voltage:** 1.55 V
- **Chemistry:** Silver oxide
- **Size:** 9.5 × 2.6 mm (diameter × height)
- **Typical capacity:** 52 mAh
- **Rechargeable:** No — never charge it

## Codes that mean the same battery

*Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.*

| Code | Fits? |
| --- | --- |
| 395 | Yes — same cell |
| 399 | Yes — same cell |
| SR57 | Yes — same cell |
| SR927 | Yes — same cell |
| SR927W | Yes — same cell |
| SR926 | Yes — same cell |
| AG7 | Yes — same cell |
| D395 | Yes — same cell |
| V395 | Yes — same cell |
| 1162SO | Yes — same cell |
| GP395 | Yes — same cell |
| SB-AP | Yes — same cell |

## Codes that look close but are not

| Code | Why it is not a substitute |
| --- | --- |
| LR927 / LR57 / 195 | Alkaline, 1.5 V, sloping discharge, roughly a third of the capacity. |
| SR920SW / 371 | Same diameter, half a millimetre shorter. It sits loose and cuts out under vibration. |

> The SR927SW is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.

## Where it turns up

- Larger quartz watches and chronographs
- Diving watch movements
- Digital calipers
- Medical penlights

## Common questions

### What is equivalent to a SR927SW?

395, 399, SR57, SR927, SR927W, SR926, AG7, D395, V395, 1162SO, GP395, SB-AP — all the same 1.55 V cell under different manufacturer codes.

### Can I use a LR927 / LR57 / 195 instead of a SR927SW?

Alkaline, 1.5 V, sloping discharge, roughly a third of the capacity.

### Is the SR927SW rechargeable?

No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.

## Related pages

- [LR44 battery](https://atoneplace.net/battery/lr44/)
- [SR626SW battery](https://atoneplace.net/battery/sr626sw/)
- [SR44 battery](https://atoneplace.net/battery/sr44/)
- [PR41 battery](https://atoneplace.net/battery/za312/)
- [PR48 battery](https://atoneplace.net/battery/za13/)
- [SR621SW battery](https://atoneplace.net/battery/sr621sw/)
- [PR44 battery](https://atoneplace.net/battery/za675/)
- [SR920SW battery](https://atoneplace.net/battery/sr920sw/)
- [LR41 battery](https://atoneplace.net/battery/lr41/)
- [PR70 battery](https://atoneplace.net/battery/za10/)
- [LR1130 battery](https://atoneplace.net/battery/lr1130/)
- [SR1130 battery](https://atoneplace.net/battery/sr1130/)

## Sources

- Official vendor product documentation — At One Place (/about/)