---
title: "SR44 equivalent: 357, 303, SR1154"
description: "The SR44 is a 1.55 V silver oxide cell, also sold as 357, 303, SR1154. Full equivalents, what does not substitute, and where it is used."
url: https://atoneplace.net/battery/sr44/
site: "At One Place"
---

# SR44 battery

**What replaces a SR44: 357, 303, SR1154, SR44W, SR44SW, S76**

1.55 V silver oxide, 11.6 × 5.4 mm (diameter × height)

The SR44 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:** SR44
- **ANSI / NEDA:** 1131SO
- **Nominal voltage:** 1.55 V
- **Chemistry:** Silver oxide
- **Size:** 11.6 × 5.4 mm (diameter × height)
- **Typical capacity:** 175 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? |
| --- | --- |
| 357 | Yes — same cell |
| 303 | Yes — same cell |
| SR1154 | Yes — same cell |
| SR44W | Yes — same cell |
| SR44SW | Yes — same cell |
| S76 | Yes — same cell |
| D357 | Yes — same cell |
| V357 | Yes — same cell |
| 1131SO | Yes — same cell |
| SB-B9 | Yes — same cell |
| MS76 | Yes — same cell |
| EPX76 | Yes — same cell |

## Codes that look close but are not

| Code | Why it is not a substitute |
| --- | --- |
| LR44 / A76 / AG13 | Dimensionally identical and swapped constantly, but a different battery. Alkaline gives 1.5 V falling steadily from the moment you fit it; silver oxide holds 1.55 V almost flat and then stops. In a toy or a torch either works. In a film camera meter, a digital caliper, a pH meter or a laboratory balance the alkaline's drifting voltage shows up as a reading that is slowly and silently wrong — which is worse than a battery that is simply dead. |
| 4SR44 / A544 | Four of these in one 13 × 25.2 mm can, giving 6.2 V. Not a single cell and not a substitute for one. |

> The SR44 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

- Film camera light meters — Olympus OM, Pentax, Canon A-series
- Digital calipers and dial gauges
- pH meters and laboratory balances
- Older Casio and Seiko watches

> Energizer sells this as "357/303": 357 is the high-drain electrolyte and 303 the low-drain one, in the same can. Either replaces either.

## Common questions

### What is equivalent to a SR44?

357, 303, SR1154, SR44W, SR44SW, S76, D357, V357, 1131SO, SB-B9, MS76, EPX76 — all the same 1.55 V cell under different manufacturer codes.

### Can I use a LR44 / A76 / AG13 instead of a SR44?

Dimensionally identical and swapped constantly, but a different battery. Alkaline gives 1.5 V falling steadily from the moment you fit it; silver oxide holds 1.55 V almost flat and then stops. In a toy or a torch either works. In a film camera meter, a digital caliper, a pH meter or a laboratory balance the alkaline's drifting voltage shows up as a reading that is slowly and silently wrong — which is worse than a battery that is simply dead.

### Is the SR44 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/)
- [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/)
- [SR927SW battery](https://atoneplace.net/battery/sr927sw/)
- [LR1130 battery](https://atoneplace.net/battery/lr1130/)
- [SR1130 battery](https://atoneplace.net/battery/sr1130/)

## Sources

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