SR44 Battery: SR44 Equivalent, SR44 vs. LR44,SR44 1.55V Power

What is SR44 Battery?

The SR44 battery is a silver oxide button cell that can be found in many popular brand-name watches. The SR44 battery can also be used to charge hand-held calculators and other tiny gadgets. LR44, AG13, SG13, 357, and several additional cells are also direct SR44 battery equivalents. With a case that measures 11.6mm in diameter by 5.4mm thick, this design of SR44 is one of the largest of the most common watch batteries. The output voltage is 1.55V, and common capacities range from 170 to 200mAh.

SR44 Battery

SR44 Battery Features and Advantages

The followings are the features and advantages of the SR44 battery:

High energy to weight ratio
Can drive power at high current drains
Low constant internal resistance
The higher the capacity, the longer the life expectancy
Non-rechargeable
Wide temperature range of operation
Vibration, shock, and acceleration resistance
Resistance to shock, vibration, and acceleration
Excellent performance at low temperatures
Stable and steady performance and feature low internal resistance
Able to operate over a wide temperature range from -10 °C to +50 °C

SR44 Battery Specifications

Attribute	Value
Size	SR44
Chemistry	Silver Oxide
Nominal Voltage	1.55V
Capacity	165mAh
Terminal Type	Standard
Diameter	11.6mm
Dimensions	11.6 x 5.4mm
Series	SR

SR44W Tech Specifications

Seiko Instruments SR44W technical specifications, attributes, parameters and parts with similar specifications to Seiko Instruments SR44W.

Product Attribute	Attribute Value
Factory Lead Time	14 Weeks
Weight	2.2g
Voltage Rated	1.55V
Size / Dimension	0.46Dia x 0.21 H 11.6mmx5.4mm

Product Attribute	Attribute Value
Part Status	Active
Moisture Sensitivity Level (MSL)	Not Applicable
Termination Style	Requires Holder
Battery Chemistry	Silver Oxide

Product Attribute	Attribute Value
Battery Cell Size	Coin 11.6mm
Capacity	160mAh
Discharge Rate	250μA
RoHS Status	ROHS3 Compliant

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SR44 Battery Applications

SR44 battery is used in electronic devices that require a small, compact source of power. Example applications include:

Calculators
Car keys
Toys
Cameras
Watches
Hearing aids
Cameras
Remote controls
Clocks
Watches
Calculators
Medical instruments

SR44 Battery Equivalent

The 357 silver oxide battery is equivalent to the SR44 battery. A small button-shaped silver oxide battery with a voltage of 1.5V is the sr44 battery equivalent.

SR44 battery equivalent to the following batteries:

SR44 (SR-44, SR 44), MS76, GS14, LR44 (replaces alkaline with silver oxide), Duracell, D303/357BPK, GS13, 228, 357, 280-62, SB-B9, SR1154, SR44W, SR44H, 541, SP357, V357, 4276, KS76, 280-8, SR76E

SR44 battery vs. LR44 battery

Physically, they're both about the same size. LR44 battery has a lower terminal voltage than SR44 battery, which operates at 1.55V. However, if the SR44 battery and LR44 battery are swapped, the device may work fine and the operation will not be harmed. In some situations, the SR44 battery would be far superior. The LR44 battery is an alkaline battery, while the SR44 is a silver oxide battery.

As a result, silver oxide outperforms alkaline in terms of performance. Silver oxide has a 50 to 100 percent greater capacity than an alkaline battery, allowing it to last longer. Due to its higher power, the silver oxide battery's voltage declines at a far slower rate.

The presence of silver oxide is denoted by the letter S, and zinc is shown by the letter L. The electrochemical systems L and S are the same. The capacity of the S electrochemical system has been increased, indicating improved device performance.

The equivalent of LR44 alkaline batteries are AG13, A76, L1154, G13, LR1154, 157, etc. The SR44 battery equivalents are SRSW, 303, 357, SR44W, SR44SW, etc.

SR44 Battery Warning

Batteries contain hazardous substances that should be properly disposed of, thus it's ideal if you were very careful when disposing of them. Alkaline batteries can be thrown away in regular garbage cans. Carbon-zinc batteries and magnesium batteries are in the same boat.

Coin button batteries must be kept out of reach of children. Consult a doctor immediately if swallowed.

Frequently Asked Questions

What is an LR44 battery?

The LR44 battery is an alkaline button cell defined by its unique dimensions (11.6mm diameter x 5.4mm thickness). They typically feature up to 240mAh capacities, have a 1.5V voltage, and are primary (non-rechargeable) due to their alkaline chemistry. LR44 batteries are often used in small devices like watches, alarm clocks, motherboards, medical devices, and more.

Are LR44s the same as a CR2032 battery?

No, CR2032 batteries use lithium chemistry and are wider and flatter (like a coin). You cannot replace CR2032s with an LR44 battery.

Are LR44s the same as an SR44 or 357 batteries?

While they are the same size, SR44 '357' batteries use a silver oxide chemistry to produce a more stable voltage (1.55V) and a lower self-discharge rate for an increased lifespan. This makes SR44 batteries more ideal for devices like watches and glucometers. However, LR44 cells are more widely available and usually cost less.

What are SR44 batteries used for?

Panasonic SILVER OXIDE SR44 is perfect for precision electronic devices. You can use them in digital watches, bike computers, heart rate monitors for athletes: typical applications where a stable operating voltage and a high-energy-density are required. Other devices include laser pens, calculators, and digital clocks.