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LR44 Battery: Specifications, Voltage, Equivalents and Alternatives

Post Date：2024-08-20，

The LR44 battery is an alkaline button cell battery whose battery chemistry includes silver oxide as the positive electrode, metallic zinc powder as the negative electrode, and the electrolyte is usually potassium hydroxide or sodium hydroxide. Known for its versatility and wide application, it can be used in small electronic devices such as watches, calculators, and toys. However, due to differences in brands, chemistries, and specifications, users often search for equivalents from different manufacturers. In this article, we will explore the specifications of LR44 batteries, providing information on voltage, manufacturers, and other relevant details. By understanding the various alternatives available, consumers can make an informed decision when choosing a replacement battery for their devices.

LR44 Battery Specifications

Battery Type	Value
LR44	LR44
Chemistry	Alkaline
Voltage	1.5V
Diameter	11.6mm
Height	5.4mm
Weight	Approx. 2.1g
Common Uses	Watches, calculators, small electronic devices
Shelf Life	Typically several years
Discharge Rate	300µA
Rechargeable	No

LR44 battery Discharge Characteristics

lr44 batteries Manufacturers

LR44 batteries are produced by various manufacturers around the world. Some of the well-known manufacturers include:

Maxell

Energizer

Duracell

Panasonic

Sony

Varta

Toshiba

Renata

Rayovac

GP Batteries

LR44 Battery Equivalents

Depending on the chemistry and specifications you require, LR44 There are several equivalents of the battery:

Alkaline: Often called LR44, 76A, AG13, LR1154, or A76. It has a nominal voltage of 1.5V and a typical capacity of 110-130 mAh.

Silver oxide equivalent: Often marked as SR44W, SR44, SR44SW, 157, 357, 303, SG13, AG13, S76, or SR1154. It has a nominal voltage of 1.55V and a typical capacity of 150-200 mAh. Silver oxide batteries provide a very constant voltage.

Zinc air: Also known as 675, Blue Tab, ZA675, PR44, or 7003ZD. It has a nominal voltage of 1.4V and a typical capacity of 600-700 mAh. Zinc air batteries have a slightly lower output voltage but a larger capacity and are often used in hearing aids.

NiMH Battery: Custom label will indicate the rechargeable battery chemistry and battery size. Its nominal voltage is 1.2V and typical capacity is 85-90 mAh. NiMH batteries are rarely used and are rechargeable.

Mercury Oxide Battery: Marked as MR44 or MR1154. Its nominal voltage is 1.35V and typical capacity is 180-200 mAh. However, mercury oxide batteries are no longer used due to environmental concerns.

Based on your requirements and availability, you can choose the equivalent product that best suits your needs.

LR44 Battery replacement Chart

Battery Type	Voltage	Size (Diameter x Height)	Chemistry
LR44	1.5V	11.6mm x 5.4mm	Alkaline
AG13	1.5V	11.6mm x 5.4mm	Alkaline
A76	1.5V	11.6mm x 5.4mm	Alkaline
357/303	1.5V	11.6mm x 5.4mm	Silver Oxide
SR44	1.5V	11.6mm x 5.4mm	Silver Oxide
SG13	1.5V	11.6mm x 5.4mm	Silver Oxide
RW82	1.5V	11.6mm x 5.4mm	Silver Oxide
675A	1.4V	11.6mm x 5.4mm	Zinc Air
CR44	3.0V	11.6mm x 5.4mm	Lithium
CR2032	3.0V	20mm x 3.2mm	Lithium

LR44 Battery Applications

LR44 batteries are widely used in many fields due to their small size and stable power output. Here are some of the main application areas:

Consumer Electronics:

Electronic Watches: Many electronic watches use LR44 batteries as a power source.
Calculators: Especially small desktop calculators and portable calculators.
Toys and Games: Various small electronic toys and game devices.

Household appliances:

Remote controls: For example, remote controls for TVs, stereos, and air conditioners.
Electronic scales: Includes electronic kitchen scales and electronic body scales.

Office equipment:

Office calculators: Calculators widely used in offices and schools.
Electronic calendars and notepads: Some electronic calendar and notepad devices use LR44 batteries.

Medical equipment:

Electronic thermometers: Electronic devices used to measure body temperature.
Glucose meters: Devices used to monitor blood sugar levels.

Lighting equipment:

LED flashlights: Especially small portable flashlights.
Nightlights and decorative lights: Some small nightlights and decorative lights may use LR44 batteries.

Teaching and presentation tools:

Laser pointers: Laser pointers used in teaching and business presentations.

Outdoor equipment:

GPS devices: Some small GPS devices may use LR44 batteries.
Outdoor lighting equipment: Such as camping lights and fishing lights.

LR44 Battery Equivalent

The LR44 and CR2032 batteries are not directly equivalent in terms of size, voltage, or chemistry. However, in some cases, the CR2032 battery can be used as a substitute for an LR44 battery with the help of an adapter or modification due to its larger size.

LR44:

Size: 11.6mm diameter, 5.4mm height

Chemistry: Alkaline

Voltage: 1.5 volts

CR2032:

Size: 20mm diameter, 3.2mm height

Chemistry: Lithium

Voltage: 3 volts

While the CR2032 has a higher voltage and larger size, it may not fit into devices designed specifically for LR44 batteries without modification. Additionally, the voltage difference could potentially damage devices not designed to handle 3-volt batteries.

If you're considering using a CR2032 battery as a substitute for an LR44, it's essential to consult the device's manual or manufacturer to ensure compatibility and safety. In some cases, an adapter or modification may be necessary for the CR2032 to fit and function correctly.

LR44 Battery Equivalent Duracell

Duracell, like many other battery manufacturers, produces LR44 equivalent batteries under their own brand. The LR44 equivalent battery by Duracell is often marketed as the Duracell PX76A or Duracell A76.

These batteries are designed to have similar specifications to LR44 batteries, including:

Voltage: 1.5 volts

Chemistry: Alkaline

Size: 11.6mm diameter, 5.4mm height

If you're specifically looking for LR44 equivalent batteries from Duracell, you can search for the Duracell PX76A or Duracell A76 batteries. These should function similarly to LR44 batteries in compatible devices.

Can a 675 battery replace a LR44?

The 675 battery and LR44 battery have different sizes and voltages, so they are not direct replacements for each other.

LR44 Battery:

Voltage: 1.5 volts
Dimensions: 11.6mm diameter, 5.4mm thickness

675 Battery:

Voltage: 1.4 volts (zinc-air) or 1.45 volts (alkaline)
Dimensions: 11.6mm diameter, 5.4mm thickness (zinc-air), or 14.5mm diameter, 5.4mm thickness (alkaline)

While the dimensions of the 675 battery match those of the LR44, the voltage difference is significant. The LR44 operates at 1.5 volts, while the 675 battery typically operates at a lower voltage (either 1.4 volts for zinc-air or 1.45 volts for alkaline). This voltage difference may affect the performance of devices designed specifically for 1.5-volt LR44 batteries.

If a device explicitly requires a 1.5-volt LR44 battery, it's advisable to use the correct voltage to ensure proper functionality. Using a 675 battery with a lower voltage may result in reduced performance or improper operation of the device.

LR44 Battery vs. 357 Battery

Both LR44 and 357 batteries are common button cells, but they have some key differences:

1.Chemistry:

LR44: Alkaline zinc manganese

357: Silver oxide

2.Voltage:

LR44: 1.5 volts

357: 1.55 volts (slightly higher)

3.Dimensions:

Both are the same size: 11.6 mm in diameter and 5.4 mm thick.

4.Performance:

LR44: Less expensive, good for low-power devices, has a larger voltage drop when discharged (down to 1.0v)

357: More expensive, longer-lasting, higher energy density, provides a more stable voltage throughout its life (down to 1.2v)

5.Interchangeability:

In most cases, you can use 357 batteries in place of LR44 batteries, as they are very similar in size and voltage. However, the 357 battery has a slightly higher voltage and may not be suitable for all devices designed for the LR44's 1.5v. This is generally safe, but it is best to always consult the device manual for the recommended battery type.

LR44 Battery Energizer Equivalents

The direct equivalent of Energizer's LR44 battery is the Energizer A76. Both batteries are alkaline button cells with the same voltage (1.5V) and size (11.6mm diameter, 5.4mm thickness). They can be freely interchanged in most devices.

LR44 Battery Voltage

The standard voltage output of the LR44 battery is 1.5 volts. This is the nominal voltage, which is the average voltage the battery provides during discharge.

What is the difference between AG10 and LR44?

The primary difference is in the thickness, with LR44 being thicker than AG10. Due to its larger size, the LR44 battery is thicker than the AG10.

e, LR44 typically has a higher capacity compared to AG10. Both batteries have a nominal voltage of 1.5 volts and are used in various small electronic devices.

AG10:

Diameter: 11.6mm

Thickness: Approximately 3.1mm

Chemistry: Alkaline

Other Names: LR1130, LR54, 189, 389, and more

LR44:

Diameter: 11.6mm

Thickness: Approximately 5.4mm

Chemistry: Alkaline

Other Names: AG13, A76, 357, G13, and more

Are SR44 and LR44 batteries the same?

Although LR44 and SR44 batteries are similar in size and shape, they are not exactly the same. They have different chemistries, and therefore different voltage outputs and performance characteristics:

LR44 battery:

Chemistry: Alkaline

Voltage: Typically 1.5 volts

Commonly used in toys, watches, calculators, and other general-purpose applications.

SR44 battery (also known as 357):

Chemistry: Silver oxide

Voltage: Typically 1.55 volts

Commonly used in precision instruments, cameras, and other devices that require a stable voltage over a long period of time.

The main difference between LR44 and SR44 batteries is voltage stability. SR44 batteries tend to maintain a more stable voltage output over their lifespan than LR44 batteries. This makes SR44 batteries suitable for applications that require stable and precise voltage levels, such as precision instruments.

Can I use LR1130 instead of LR44?

Yes, you can sometimes use LR1130 batteries instead of LR44 batteries, but there are some differences between the two.

Voltage: LR1130 batteries generally have a slightly lower voltage than LR44 batteries. LR1130 batteries typically have a voltage of around 1.5 volts, similar to LR44 batteries, but may have slightly different discharge characteristics.

Dimensions: LR1130 batteries have different physical dimensions compared to LR44 batteries. LR1130 batteries are smaller, approximately 11.6 mm in diameter and 3.05 mm in height, while LR44 batteries are 5.4 mm in height. This size difference may affect compatibility depending on the battery compartment design of your device.

Can I replace LR44s with AAAs?

While it is technically possible to replace LR44 batteries with AAA batteries in some cases, it is not recommended.

Dimensions and fit: LR44 batteries are much smaller in diameter and length than AAA batteries. AAA batteries are significantly larger and may not fit properly in devices designed for LR44 batteries. Even if you manage to fit them in place, they may not make proper contact with the device's terminals, resulting in erratic performance or potential damage.

Voltage: LR44 batteries typically have a voltage of 1.5 volts, while AAA batteries have a voltage of 1.5 volts. When replacing LR44 batteries with multiple AAA batteries, the voltage exceeds the voltage requirements of the device. This may damage the device or cause the device to malfunction.

Safety: Soldering wires or using makeshift methods to connect AAA batteries in place of LR44 batteries may pose safety risks, such as short circuits or battery leakage.

What is the difference between LR44 and LR41 batteries?

LR44 and LR41 batteries are similar in chemistry and voltage, but differ in size and capacity:

LR44 battery:

Dimensions: 11.6 mm diameter, 5.4 mm height

Chemistry: Alkaline

Voltage: 1.5 volts

Commonly used in small electronic devices such as watches, calculators, and toys.

LR41 Battery:

Dimensions: 7.9 mm diameter, 3.6 mm height

Chemistry: Alkaline

Voltage: 1.5 volts

Smaller and lower capacity than LR44 batteries.

Commonly used in smaller electronic devices such as laser pointers, small flashlights, and some calculators.

Are all LR44 button batteries the same?

While LR44 batteries have the same nominal voltage (1.5 volts) and dimensions (11.6 mm diameter, 5.4 mm height), not all LR44 batteries are created equal in quality and performance. Manufacturing processes, materials used, and quality control standards may vary between brands and manufacturers.