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Home > power-new-energy > The Ultimate Guide to LR44 vs. 357: Are They Interchangeable?

The Ultimate Guide to LR44 vs. 357: Are They Interchangeable?

Update Time: 2024-01-02 17:34:05


Batteries supply power to various electronic devices, ranging from watches to calculators. LR44 and 357 emerge as popular choices among the commonly used coin-cell batteries. Despite their similar physical appearance, LR44 and 357 batteries exhibit distinct performances. The LR44 is categorized as an Alkaline Zinc Manganese button cell battery, while the 357 is identified as a silver oxide button cell battery. This article compares LR44 and 357 batteries in-depth, shedding light on their features, applications, lifespan, chemical reactions, and more. It aims to elucidate their differences and assess whether they are interchangeable.

Overview of LR44 Battery

LR44 represents a variety of zinc-manganese alkaline button cell batteries, also recognized as AG13, A76, 357, and various other identifiers. These compact, circular, and flat batteries commonly apply to small electronic devices like calculators, watches, digital thermometers, remote controls, and toys. Although LR44 batteries lack recharging capabilities, they are replaceable at the end of their lifespan, offering approximately 50 to 200 hours of power for most uses.

Measuring 11.6 mm in diameter and 5.4 mm in thickness, LR44 batteries typically boast a voltage of 1.5 volts, functioning within a temperature range of 0 to 60 degrees Celsius, with an optimal range of around 20 degrees Celsius. Often available in cost-effective multi-packs, these batteries exhibit a prolonged shelf life and are crafted to deliver a consistent voltage output over extended usage periods.

Crucially, LR44 batteries, due to their non-rechargeable nature, should not be discarded in regular waste bins, as they contain hazardous substances. Instead, proper recycling by local regulations is advised.

LR44 battery.jpg

Overview of 357 Battery

The Energizer 357 battery, falling within the alkaline battery category, is a compact, silver oxide button-cell with versatile applications. With an 11.6-millimeter diameter and a 5.4-millimeter thickness, this battery is recognized by various aliases, including SR44, AG13, and LR44, denoting equivalent models across different manufacturers.

Commonly employed in small electronic devices like calculators, watches, digital cameras, laser pointers, and select medical equipment, the Energizer 357 battery boasts a nominal voltage of 1.5 volts and a capacity of approximately 150 mAh. Widely accessible in stores specializing in battery sales, it can be obtained in individual units or larger multi-packs.

357 Battery.png

LR44 VS 357 battery: Advantages

LR44 Battery Advantages

For numerous applications, an LR44 battery can deliver power within 50 to 200 hours.

Given its flat form, individuals often encounter challenges discerning the positive and negative terminals of the LR44 battery. The positive terminal is identified on the flat side with markings, while the negative terminal is situated on the opposite side, characterized by a small circular protrusion.

While button batteries are accessible in silver oxide chemistry, the alkaline variant remains the most favored. Positioned within an economical range, the LR44 battery offers an impressive balance between price and quality.

A noteworthy advantage of the LR44 lies in its absence of toxic elements such as mercury or cadmium, rendering it environmentally friendly and easily disposable. Recognized for its lightweight composition, it is a preferred choice for applications where weight is critical.

357 Battery Advantages

The Energizer 357 cell boasts numerous merits, rendering it a favored option for a variety of miniature electronic gadgets. Among the positive attributes of the Energizer 357 cell are:

  • Prolonged Longevity: With a heightened energy density, the Energizer 357 cell can supply power for extended durations. Boasting a capacity of approximately 150 mAh, enables devices to function for prolonged periods before necessitating replacement.

  • Dependable: Crafted to exacting standards, the Energizer 357 cell is fashioned for reliability and trustworthiness. It maintains a consistent output voltage, ensuring the steadfast operation of powered devices.

  • Extensive Compatibility: The Energizer 357 cell is prevalent in numerous small electronic devices, available under various model designations. This broad compatibility renders it suitable for a diverse array of devices.

  • Compact Form: The Energizer 357 cell is compact and miniature, facilitating easy transport and storage. Its lightweight nature makes it an ideal choice for portable devices.

  • Alkaline Composition: Employing alkaline chemistry, the Energizer 357 cell delivers an extended shelf life and superior performance in high-drain devices compared to alternative battery types.

LR44 vs. 357: Specifications

Battery typeAlkaline ManganeseBatteriesSilver Oxide
Nominal  Voltage1.5V1.5V
Nominal  Capacity120mAh150 mAh
Operating Temperature Range-10℃ to 60℃-28 to 55
Diameter (inch)0.457inch0.457inch
Diameter (mm)11.6mm11.6mm
Height (inch)0.213inch0.213inch
Height (mm)5.4mm5.4mm
IEC (JIS)LR44357
Mass (oz)0.0705oz0.0811oz
Mass (g)2g2.3g

LR44 vs. 357: Features

LR44 Battery Features

Cost-Effective Excellence

Using manganese dioxide as a cathode material contributes to outstanding cost performance.

Consistent Discharge Stability and High-Drain Pulse Discharge Capabilities

The LR44 battery ensures a stable voltage output even during high-drain pulse discharges.

Superior Leak Resistance

Murata's distinctive sealing structure, combined with the specialized treatment of sealing materials, results in remarkable leak resistance.

357 Battery Features

  • Chemical System: Silver Oxide (Zn/Ag2O)

  • Designation: ANSI-1131SO, IEC-SR44.

  • Nominal Voltage: 1.55 Volts.

  • Typical Capacity: 195 mAh* (to 1.2 volts)

  • Capacity Test: 6.8K ohm continuous drain at 21°C.

  • Typical Weight: 2.3 grams (0.08 oz.)

  • Typical Volume: 0.57 cubic centimeters (0.035 cubic inches)

  • Impedance (40 Hz): 2 to 8 ohms.

LR44 vs. 357: Application

LR44 Battery Applications

LR44 batteries are widely employed in various small, portable electronic devices. LR44 batteries are favored for devices with modest power requirements thanks to their compact form factor and consistent power delivery.

  • Wristwatches

  • Alarm clocks

  • Thermometers

  • Small radios

  • Motherboards

  • Gun sights

  • Electronic keys

  • Laser pointers

  • Calculators

  • Cameras

  • Dog collars

  • Medical devices

LR44 Battery Application.png

357 Battery Applications

The 357 battery, known for its slightly elevated voltage output, is frequently deployed in precision instruments demanding precise and consistent power. Its aptness for precision applications makes it a favored choice in such scenarios.

Some notable devices utilizing the 357 silver oxide include:

  • HP Calculator HP32S

  • Texas Instruments TI-30Xa Scientific Calculator

  • Micro-Tech XMT-300 Digital Pocket Scale

  • Sharp EL-733A Calculator (uses 2)

  • Medtronics INSULIN PUMP 508

  • TAYLOR 9878 Digital Thermometer

  • Digital Voltmeter Model DM78

  • Oregon Scientific model NAW-882EXL electronic thermometer

  • Micronta LCD Travel Alarm Clock

  • Portline 345 Pedometer

  • HP Calculators HP-17BII, HP-20S, 12C, 38C

  • Children's talking books

LR44 vs. 357: Lifespan

Both LR44 and 357 batteries boast a reasonably extended shelf life, rendering them well-suited for storage. Typically, when stored appropriately in a cool, dry environment, they can retain their charge for up to 5 years. Nevertheless, the actual lifespan within a device is contingent on variables like usage patterns and the particular power demands of the device.

LR44 vs. 357: Chemical Reaction

LR44 battery Chemical Reaction

The chemical reaction equation for an LR44 battery is expressed as follows:

Manganese Dioxide (MnO2) + Zinc (Zn) = Manganese (Mn) + Zinc Oxide (ZnO)

Manganese dioxide functions within the battery as the positive electrode (cathode), while zinc is the negative electrode (anode). During its operation, the manganese dioxide reacts with zinc, forming manganese and zinc oxide, ultimately generating an electric current.

357 battery Chemical Reaction

The chemical reaction equation for a 357 battery is outlined as follows:

Silver Oxide (Ag2O) + Zinc (Zn) = Silver (Ag) + Zinc Oxide (ZnO)

Silver oxide is the positive electrode (cathode) within the battery, while zinc is the negative electrode (anode). During its operation, the silver oxide undergoes a reaction with zinc, producing silver and zinc oxide, ultimately generating an electric current.

LR44 vs. 357: Voltage

The LR44 battery is specified at 1.5 volts, whereas the 357 battery boasts a voltage of 1.55 volts, representing a relatively higher power level than the LR44. This voltage disparity provides a distinct advantage to the 357 over the LR44, particularly when supplying additional energy for high-power devices like digital cameras and toys.

LR44 vs. 357: Size and Weight

LR44 battery size.png

The LR44 battery boasts a more compact size than the 357, rendering it a preferred choice for gadgets constrained by spatial limitations. This size discrepancy contributes to the LR44's lighter weight than the 357, enhancing its portability factor.

LR44 vs. 357: Cost

The LR44 battery typically commands a higher price than the 357 battery, attributed to its superior energy density and lower self-discharge rate. Nevertheless, the 357 remains more costly than certain other battery types, such as zinc-carbon and silver oxide batteries.

Naturally, the expense may vary based on the purchase source, with some manufacturers offering more economical options than others.

LR44 vs. 357: Nominal capacity

The nominal capacity of a battery denotes the energy it can store, and the 357 surpasses the LR44 battery in this regard.

The capacity of the 357 is 150mAH, whereas that of the LR44 is 120mAH.

This implies that, especially for high-power-demanding devices like digital cameras and toys, the 357 would be a superior choice as it can store more energy, enabling extended periods of operation.

LR44 vs. 357: Leakage Resistance

Both batteries exhibit excellent leakage resistance. Nevertheless, due to its alkaline chemistry, the LR44 battery surpasses the 357 in leakage resistance. Consequently, it demonstrates superior containment of its electrolyte.

LR44 vs. 357: Operating Temperatures

There's a subtle distinction in the operating temperature range of the two batteries. The LR44 can function in temperatures ranging from -20 to 54 degrees Celsius, whereas the 357 is more suitable for operation between 0 and 50 degrees Celsius.

LR44 vs. 357: Safety

Both batteries are secure for use when handled appropriately. Nevertheless, due to its alkaline chemistry, the LR44 might be considered a safer choice.

Nevertheless, the safety aspect hinges on the battery's proper handling and storage. Moreover, how the battery is utilized is pivotal in determining its safety.

LR44 vs. 357: Performance and Reliability

The performance and reliability of both batteries are satisfactory; however, the 357 battery holds an advantage due to its superior energy storage capacity. It can provide longer power to high-energy-consuming devices such as digital cameras and toys than the LR44.

LR44 vs. 357: Difference in Dimension Outline

LR44 Dimension Outline

LR44 Dimension Outline.jpg

357 Dimension Outline

357 Dimension Outline.jpg

LR44 VS 357 battery: Disadvantages

Disadvantages of LR44

Here are the primary disadvantages associated with LR44:

  • Non-rechargeable: Once depleted, this battery cannot be recharged.

  • Limited capacity: Despite its high energy density, the LR44 has a lower capacity than other batteries.

  • Reduced voltage: It operates at 1.5V, a voltage slightly lower than that of the 357, which stands at 1.55V.

  • Higher cost: The LR44 is less budget-friendly than alternative batteries such as zinc-carbon and silver oxide.

Disadvantages of 357

Here are the primary disadvantages linked to the 357 battery:

  • Non-rechargeable: Once depleted, this battery is not rechargeable.

  • Capacity Degradation Over Time: This battery tends to experience a reduction in capacity as time progresses.

  • Sensitivity to Heat: It is more responsive to heat than alkaline batteries such as LR44.

  • Higher Cost: The 357 is not as cost-effective as sure alternative batteries, such as zinc-carbon and silver oxide batteries.

Alkaline LR44 Battery vs. Silver-Oxide 357 Battery

Alkaline LR44 Battery

Alkaline LR44 batteries possess a nominal voltage of 1.5 volts and a cutoff voltage of 0.9 to 1.0 volts. The output voltage undergoes a relatively consistent decline as the battery discharges.

While sure LR44 batteries assert a notably higher capacity, equivalent to silver-oxide batteries, the nominal capacity of LR44 batteries typically falls within the 110-130 mAh range.

The effective capacity is also influenced by the cutoff voltage of devices powered by these batteries. For instance, some watches encounter reliability issues when the battery voltage drops below 1.2 volts, prompting the recommendation to use SR44 silver-oxide batteries for such devices.

LR44 batteries generally boast an average shelf life of 3 years; however, with advancements in chemistry, some LR44 batteries now feature a 4-5-year shelf life.

Local hardware stores and online retailers offer LR44 batteries at reasonable prices.

Silver-Oxide 357 Battery

Silver-oxide 357 batteries exhibit a nominal voltage slightly higher at 1.5 volts than alkaline LR44 batteries. The output voltage experiences a minor reduction, although not nearly as pronounced as in alkaline LR44 batteries. Consequently, 357 batteries, such as watches, calculators, toys, and specific medical instruments, are preferred for applications requiring a relatively constant output voltage.

Silver-oxide batteries boast a higher nominal capacity, typically falling in the 150-200 mAh range, albeit subject to variations based on discharge currents. Some low-drain types even claim capacities exceeding 200 mAh. The 357 battery is characterized by an exceptionally low self-discharge rate, with models featuring a 5-year shelf life as a standard.

The 357 zero-mercury silver oxide button battery serves as the power source for the device and has a smaller environmental impact.

LR44 Battery Equivalents

The LR44 battery, recognized by alternative names such as AG13, A76, or 76A, possesses multiple equivalent counterparts owing to diverse nomenclatures used by distinct standards organizations. Below are some commonly encountered equivalents:

  • AG13: Predominantly utilized in the United States, AG13 is another alkaline option sharing size and voltage characteristics similar to the LR44. While it exhibits a slightly lower capacity than the LR44, it remains suitable for specific LR44-requiring devices.

  • A76: Also widely acknowledged in the United States, A76 is another alkaline alternative, slightly larger than the LR44. Despite maintaining capacity and voltage identical to the LR44, A76 can, in specific devices, provide a longer operational duration.

  • LR1154: Commonly employed in Europe, LR1154 shares the same size as the LR44, differing primarily in manufacturing and specific chemistry.

  • SR44: Frequently utilized in photography equipment, SR44 mirrors the LR44 in size and shape. It features a slightly higher voltage than the LR44 (1.55 volts vs. 1.5 volts) and an extended lifespan.

  • 303 (Commonly used in Canada): The 357/303 battery, a silver oxide variant prevalent in Canada, possesses the same voltage as the LR44 (1.5 volts) but a higher capacity, affording an extended lifespan compared to the LR44.

These equivalents share similar size, voltage (1.5 volts), and capacity specifications. They are often interchangeable in devices requiring an LR44 battery; however, verifying your device's specific requirements is recommended to ensure compatibility.

LR44 vs A76

LR44 VS A76.png

LR44 vs AG13

Equivalent substitutes for LR44 batteries include AG13 batteries. These alternatives are identical to LR44 batteries, the only distinction being the name. Interchanging these batteries is completely feasible.

LR44 VS SR44

LR44 and SR44 share the same physical dimensions. Nevertheless, the SR version has a slightly higher terminal voltage (1.55v compared to 1.5v) and a higher capacity. Many devices are designed to function with LR44 batteries. While some may operate with SR44, there's no guaranteed compatibility, and attempting it is not advisable.

Although LR44 batteries have identical sizes, their chemistry differs from silver oxide button cells like SR44. While batteries can be easily inserted into each other's devices, selecting the recommended battery type for your device is crucial to prevent over/under discharge. Please ensure you verify your battery's size and voltage requirements to prevent potential issues that could harm your device.

357 Battery Equivalents

357 battery equivalents include SR44, AG13, A76, SG13 and PX76A.

AG13 vs 357

AG13 batteries, known as Alkaline Zinc Manganese button batteries, are primarily used in watches. They are also called LR44, 157, A74, or LR 1154. These batteries share the same size and voltage as SR44 batteries, also known as 357. However, the latter are Silver Oxide batteries, boasting a capacity approximately three times longer but with a higher price.

Is 357 the Equivalent of an LR44 battery?

The 357 and LR44 batteries utilize distinct materials and chemical processes for power generation. The silver oxide 357 battery performs better than the alkaline LR44 battery. The 357 battery maintains a consistent voltage of approximately 1.55 volts until its chemical energy is nearly depleted, after which the voltage experiences a rapid decline. In contrast, the voltage of the LR44 alkaline battery decreases steadily throughout its discharge cycle.

Despite requiring devices to have a stable voltage, the 357 and LR44 batteries are generally interchangeable for most applications. The 357's ability to maintain a constant voltage renders it valuable for precision calipers and certain timepieces. Devices with elevated energy demands benefit from the 357's enhanced usable capacity.

LR44 vs 357: Similarities

  • External Dimensions: LR44 and 357 batteries share identical external measurements (5.4mm x 11.6mm).

  • Voltage and Size Interchangeability: Despite variances, they are frequently regarded as interchangeable in specific devices owing to their close alignment in voltage and size.

  • Manufacturer Designations: Manufacturers often employ diverse names for the same cell (LR1154, AG13, LR44, 357, A76), potentially causing confusion among consumers.

  • Matching External Dimensions and Voltage: The external dimensions and voltage remain consistent, fostering physical compatibility in numerous scenarios.

  • Device Suitability: For devices specifying LR44/A76 cells, utilizing 357s may extend useful life due to their higher capacity, contingent on the specific demands of the device.

Are LR44 and 357 Cells Interchangeable?

Are LR44 and 357 cells interchangeable.png

To generate electrical power, the 357 and LR44 batteries employ distinct materials and chemical reactions. The performance of the silver oxide 357 battery surpasses that of the alkaline LR44 battery. The 357 battery maintains a consistent voltage near 1.55 volts until its chemical energy is nearly depleted, at which point the voltage experiences a sudden drop. In contrast, the voltage of the LR44 alkaline battery decreases steadily throughout its discharge lifespan.

In most applications, the 357 and LR44 batteries are interchangeable, except in devices requiring a consistent voltage. For instance, precision instruments like calipers and certain watches benefit from the 357's stable voltage performance. The 357's higher usable capacity is advantageous for devices with elevated energy requirements.

The compatibility of button batteries, such as LR44 and 357, relies on various factors, including size, voltage, and application needs. While these batteries are sometimes considered equivalent, it's crucial to discern the subtleties.

Size Matching:

LR44 and 357 batteries frequently share identical physical dimensions, allowing for interchangeability in devices designed for these sizes.

Voltage Discrepancies:

LR44 typically boasts a 1.5-volt rating, whereas 357 and 303 batteries are commonly rated at 1.55 volts. Despite the slight voltage variance, certain devices, particularly those sensitive to voltage fluctuations, might be affected.

Chemical Composition Variances:

LR44 is an alkaline battery, while 357 is often silver oxide batteries. The chemical contrast can influence performance aspects like discharge rate and overall longevity.

Application Factors:

In low-drain scenarios, silver oxide batteries like 357 might offer extended life compared to LR44, which is better suited for high-drain applications.

Although LR44 and 357 may be labeled as equivalent on platforms like Amazon, it's crucial to recognize that general equivalence doesn't assure identical performance across all devices. Adhering to manufacturer recommendations remains paramount.

Comparison of Alkaline vs. Silver-Oxide Battery

Nominal Voltage1.5V1.55V
End-Point Voltage1.0V1.2V
NotesVoltage drops over timeVery constant voltage
Typical LabelsLR44, 76A, AG13, LR1154, A76SR44W,   SR44, SR44SW, 157, 357, 303, SG13, AG13, S76, A76, SR1154
Typical Capacity110-130 mAh150-200 mAh

Silver oxide batteries boast a 50% to 100% higher capacity than alkaline batteries, enabling them to endure up to twice as long. In contrast to alkaline, silver oxide exhibits a slower rate of voltage decline post-discharge, making it well-suited for applications such as light meters in calculators and medical instruments.

LR44 vs. 357: Datasheet

LR44 Datasheet 

357 Datasheet


After reviewing our LR44 vs. 357 battery guide, these button cells share similarities in size and external dimensions. However, their internal chemistry and performance characteristics differentiate them. LR44, utilizing alkaline composition, serves various devices with moderate energy requirements, ensuring consistent discharge and cost-effective functionality. Conversely, the 357, powered by silver oxide chemistry, distinguishes itself with a higher nominal voltage, an extended lifespan, and suitability for precision instruments. In emergencies, LR44 can be used as a substitute for 357 batteries, but it's worth noting that 357 batteries offer superior features compared to LR44.

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  • Can a 357 battery replace a LR44?
  • In brief, the 357 battery closely resembles the LR44, yet there are distinctions in cost and performance. It's important to note that these batteries may only be universally compatible with some applications that typically use an LR44 battery.

  • What battery can I use instead of LR44?
  • Replacement options for LR44 encompass Duracell 76A, Energizer A76, and AG13 batteries. These alternatives mirror the LR44 battery precisely, differing only in nomenclature. Hence, these batteries are interchangeable with LR44.

  • Is LR44 and CR2032 the same?
  • No, they differ. The CR2032 is a widely used lithium 3.0V non-rechargeable battery, sized at 20x3.2 mm, whereas the LR44 battery is a 1.5V alkaline non-rechargeable battery measuring 11.6x5.

  • How can I physically differentiate LR44 vs 357 batteries?
  • As observed, these two often exhibit similar physical characteristics. Both are button cells, cylindrical in form, with an 11.6mm diameter. However, the LR44 is marginally shorter than the 357 battery – measuring 28.5mm compared to 30.0mm, respectively.

  • What does LR stand for in batteries?
  • The LR designation signifies an alkaline battery and can be disposed of in regular trash.

  • Are 76a and 357 batteries the same?
  • The 357 is similar in size to the A76.

  • Do LR44 batteries have silver?
  • In general, LR44 batteries do not include silver; they rely on alkaline chemistry and consist of compounds such as zinc and manganese dioxide. On the other hand, SR44 batteries do contain silver, as they are based on silver-oxide chemistry and include compounds like zinc and silver-oxide.

  • Is silver oxide better than alkaline?
  • Silver Oxide cells outperform their Alkaline counterparts by maintaining a more consistent voltage.

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