SR44Ø11.6mm × 5.4mm
Dimensional drawing from our own cell data (11.6mm × 5.4mm).
SR44 product photo available on request
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Coin Cell Battery

SR44 Battery - 1.55V Silver Oxide Coin Cell

The SR44 silver oxide 1.55V coin cell — 11.6mm diameter, 175mAh capacity. Ideal for watches, calculators, medical devices.

The SR44 is a 1.55V silver oxide coin cell — 11.6mm in diameter and 5.4mm thick, rated 175mAh. Its cross-references are SR44W, 357, 303. It is used in watches, calculators, medical devices. Available factory-direct for wholesale and OEM projects, with your brand on the cell and the packaging.
1.55V
Voltage
175mAh
Capacity
11.6mm
Diameter
MOQ from 50 cartons Samples available Lead time per quote
Download Spec (PDF)Request Quote / SampleBuy SR44 in BulkCustomize Your SR44
Specifications

What are the specifications of a SR44 battery?

The SR44 is a Silver Oxide coin cell rated 1.55V, with a nominal capacity of 175mAh. It measures 11.6mm across and 5.4mm thick, and weighs 2.1g. The table below gives the full specification — final values are confirmed on the OEM spec sheet for your project.

ChemistrySilver Oxide
Voltage1.55V
Diameter11.6mm
Thickness5.4mm
Capacity175mAh
Weight2.1g
CompatibleSR44 = SR44W = 357 = 303

Specs for reference — final values per OEM project.

SR44 vs LR44

Both are 11.6mm x 5.4mm coin cells, but an SR44 (silver oxide) holds a steadier 1.55V and is the better choice for watches. An LR44 (alkaline) works for low-drain devices but runs down faster.

SR44LR44
Diameter11.6mm11.6mm
Thickness5.4mm5.4mm
Voltage1.55V1.5V
ChemistrySilver oxideAlkaline
Capacity~175mAh~118mAh
Model guides: LR44 battery · AG13 battery
Cross Reference

What batteries are equivalent to the SR44?

The SR44 is interchangeable with any cell of the same diameter, thickness and voltage, so an equivalent can be substituted without changing the device. Buyers look these cells up under three numbering systems at once — IEC, ANSI and manufacturer codes — and the list below covers the names the SR44 is sold under.

Look any number up in the cross-reference tool → — type the marking on your cell and see where it lands, or pick your device and see the cells we supply for it.

Compiled from manufacturer cross-reference documentation — Maxell's Micro Battery Cross Reference and Replacement Guide, the Duracell 2024 Battery Specifications, Energizer's battery cross-reference guide and product datasheets, Varta datasheets, and Renata's product pages. A number listed in the same family is a drop-in replacement; numbers in the other family share the same footprint and will physically fit, but are a different chemistry and may differ in voltage, capacity and discharge curve. Confirm against your device's requirements and the cell marking before ordering.
This page covers the 1.55V silver-oxide cell. The alkaline cell that fits the same holder is LR44 / A76 / AG13 at 1.5V — it is a different chemistry, not an equivalent. Devices that specify SR44 or 357 need the silver-oxide cell to hold their calibration.

Alkaline 1.5V — direct replacement

Number on the cellPublished by
A76Energizer (own model) · Maxell · Duracell · Renata
V13GAVarta (own model) · Maxell · Duracell
PX76ADuracell (own code) · Maxell
RW82Rayovac (own code) · Maxell
L1154Bulova (own code) · Maxell
GPA76Seiko (own code) · Maxell
AG13 / G13AMaxell cross-reference (Asia column) — single source, treat as unconfirmed

Silver oxide 1.55V — same size, different chemistry

Number on the cellPublished by
357Energizer (own model) · Maxell · Renata · Rayovac
D357Duracell (own code) · Maxell
303Duracell (own model) · Varta · Renata · Maxell
SR44W / SR44SWIEC type · Maxell · Renata
V357 / V303Varta (own code) · Maxell · Renata
SB-B9Seiko (own code) · Maxell · Renata
JTimex (own code) · Maxell · Renata
280-08Citizen (own code) · Maxell
228Bulova (own code) · Maxell
Sources for this cross-reference: These tables are compiled from manufacturers' own cross-reference documentation. Equivalent numbers mean the cell will fit and operate in the same holder; capacity and discharge curve can still differ between brands and between chemistries, so confirm the specification for the device you are powering. Numbers marked "single source" appear in one manufacturer's documentation only — ask us and we will confirm on a sample.
Applications

Where is the SR44 battery used?

The SR44 is used in watches, calculators, medical devices and other compact devices that draw small currents over long periods. Its 1.55V output and 175mAh capacity suit equipment that has to run for months without a battery change. The blocks below set out what to check for each device type.

Watches
Watches
Calculators
Calculators
Medical devices
Medical devices

SR44 Watch Battery

The SR44 is a common watch battery cell. Match the model number on your old cell (SR44 = SR44W = 357 = 303) to the one you replace it with — same size and voltage means an easy swap.

Buyers Also Search

What do buyers ask about the SR44 battery?

Next step

Need the SR44 priced, or the same cell printed and packed under your own brand? Send the quantity, the target market and the packaging format, and we return price, MOQ band and the SR44 data sheet.

Printed, blister-carded and boxed in our own plant, from 50 cartons per product line. Samples are available before a production run — tell us the device the cell goes into.

FAQ

SR44 Battery FAQs

What is a SR44 battery?

SR44 is a 11.6mm diameter, 5.4mm thick silver oxide coin cell with 1.55V output and ~175mAh capacity.

What is the SR44 compatible with?

SR44W, 357, 303 — same size and voltage, interchangeable with SR44.

What is a SR44 battery equivalent to?

SR44W, 357, 303 — these are the same 11.6mm x 5.4mm cell at 1.55V, sold under different manufacturer codes, so they fit and operate in any device that specifies a SR44. Capacity and discharge curve can still differ between brands and chemistries.

Is the SR44 rechargeable?

Standard SR44 is a primary (non-rechargeable) silver oxide battery.

How long does a SR44 battery last?

In a low-drain device (watch, CMOS, spare key fob) a SR44 typically lasts several years; in high-drain use the cycle is shorter.

Does a SR44 fit my device?

SR44 fits any device that specifies a SR44 cell or a listed compatible equivalent (SR44W, 357, 303).

How do I get SR44 battery wholesale pricing?

Pricing depends on cell grade, quantity and packaging, so quotes are issued per project rather than from a fixed list. Send your quantity, target market and label or packaging requirements, and we return a landed-cost quote together with samples — usually within one working day.

Related

These models share chemistry, voltage or form factor with the SR44 and are frequently specified alongside it. Where a device accepts more than one size, confirm the battery-bay dimensions before ordering — each card below links through to the full specification and equivalents.

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