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What is an LR44 battery?

Author: Apogeeweb
Date: 11 Apr 2022
lr44 battery equivalents

Ⅰ Introduction

When we talk about batteries, the first thing that comes to mind is how important they are in our daily life. Batteries are required in almost all homes and workplacesBatteries are required in everything from laptops to wristwatches, torches, smartphones, and even automobiles. As a result, if you have small portable devices or gadgets, chances are they utilize a battery. LR44 batteries, for example, can be used in electronic automobile keys.


LR44 batteries are non-rechargeable, strong, and long-lasting button cell batteries that are regularly depleted due to the frequency with which they are used. It is an alkaline single-cell battery with a nominal voltage of 1.5 volts, a shelf life of 2-5 years, and a capacity of roughly 110mAh. Even if these batteries have a reduced lifespan or lose usefulness with repeated use, they are nonetheless dependable. The most advantageous advantages of this battery are that it is more economical, highly compatible with most devices, performs well in a variety of weather conditions, and is widely available in a variety of retailers.



Ⅰ Introduction

Ⅱ What Is an IR44 Battery?

Ⅲ Applications of IR44 Batteries

Ⅳ How To Install LR44 Batteries In Your Device

Ⅴ LR44 Batteries VS Lithium Batteries

5.1 Function

5.2 Voltage

5.3 Price

5.4 Effects

5.5 Weight

5.6 Discharge

5.7 Conclusion

Ⅵ Voltage of LR44 Battery

Ⅶ Alkaline LR44 Vs. Silver-Oxide SR44 Vs. Zinc-Air PR44 Battery

Ⅷ LR44 Battery Safety Concerns

Ⅸ Frequently Asked Questions About IR44 Batteries


Ⅱ What Is an IR44 Battery?

The LR44 battery is a very popular button/coin cell battery that is commonly used in a variety of electronic gadgets, toys, remote controls, watches, calculators, and so on, and is manufactured by virtually all recognized companies.


LR44 batteries are available in a variety of chemistries, each with considerably distinct properties that are typically critical for their applications.


this video shows LR44 battery


The LR44 battery is a high-capacity alkaline button cell. It has a small footprint and a low cost. It is widely available in stores because to its popularity for personal usage. The batteries are classified as high-end premium and regular. The batteries are noted for their endurance, high capacity, high energy density, and reliability due to some of their desired attributes, including their low price.


The LR44 battery is often used in calculators, thermometers, gun sights, electronic keys, electronic toys, computer motherboards, dog collars, and medical equipment, laser pointers, small radios, cameras, hand watches, toys, and portable gadgets.


The diameter of these batteries is 11.6mm, the weight is approximately 2.5 grams, and the height is 5.4mm.


When it comes to replacing the batteries in your portable device, make sure to look into factors such as battery type, measurement dimensions, capacity, maximum voltage or current, shelf life, and battery chemistry.


Because some devices cannot function properly when powered with voltage less than the needed threshold voltage, Silver Oxide batteries can be used to replace LR44 batteries.


If an alkaline label appears on a package list, it indicates that the batteries are alkaline.


Ⅲ Applications of IR44 Batteries

LR44 batteries are quite popular and are ideal for applications that require a compact but stable battery. The following are some examples of LR44 applications.

1)Thermocouple Thermocouple Thermocouple


3)Laser Pen


5)Security System Control Panel

6)Watches for the wrist

7)Medical Instruments and Devices

8)Backup of Memory

9)Application for a Battery Pack


Ⅳ How To Install LR44 Batteries In Your Device

Determine the positive and negative ends of the battery first. The flat side (sometimes with markings) of a common Alkaline LR44 battery is normally the positive side. A little round protrusion should be evident on the opposite side. Typically, the side is the negative end. You can easily align the positive and negative ends of the battery with the relevant markings on your device now that you've determined the positive and negative ends of the battery.


Please keep in mind that certain gadgets feature small metallic tabs to help with battery retention and function. It is critical that these tabs remain unharmed and undamaged, as doing so may jeopardize the performance of your device. If you happen to move this tab slightly out of place, you can generally fix it by gently readjusting it back into the proper alignment.


Ⅴ LR44 Batteries Vs. Lithium Batteries

The most frequent types of batteries used as a personal power source are lithium and LR44. Despite the fact that these batteries are mostly employed in small portable devices, they have varying chemical compositions and voltage ranges. The primary distinction between these two batteries is that LR44 batteries have a shorter life cycle than lithium batteries. Please continue reading to learn more about their similarities and differences.


5.1 Function

LR44 batteries are dry alkaline cells that create power by a chemical reaction of zinc and manganese oxide, whereas lithium batteries use lithium metal or compounds as their anode.


5.2 Voltage

When the voltage and current levels of these batteries are compared, lithium batteries produce more voltage than alkaline batteries (voltage of 1.75 or more than 1.5V in LR44). Because they have a longer shelf life than LR44 batteries, they offer a competitive edge.


5.3 Price 

LR44 batteries are less expensive than lithium batteries and thus more cost-effective to utilize.


5.4 Effects

Lithium batteries are extremely potent, making them substantially more harmful to the environment and humans, and should be disposed of with caution. LR44 batteries, on the other hand, contain no heavy metals that can poison the soil or cause a ground fill explosion. As a result, they are non-toxic and can be disposed of in the same manner as regular waste. Regardless, it is always best to follow correct disposal procedures when dealing with batteries of any kind.


5.5 Weight

LR44 batteries are heavier or have a higher weight when compared to lithium batteries.


5.6 Discharge

Despite having a lower voltage than lithium batteries, LR44 batteries can endure for a long time when in use. Lithium batteries are more powerful, however they have a high self-discharge rate.


5.7 Conclusion

We hope you now have a thorough understanding of LR44 batteries, their applications, counterparts, and differences from lithium batteries. After reading the above information, I believe you will never have difficulty distinguishing LR44 batteries from other types of batteries. Remember to examine and compare details on a battery or battery pack to see whether a different battery can be used as a replacement for the LR44 battery.


Ⅵ Voltage of LR44 Battery 

The nominal voltage of 11.6x5.4 mm batteries is determined by the specific battery chemistry, as well as battery age, storage circumstances, discharge conditions, and other factors.


The LR44 battery has a nominal voltage of 1.5 volts and a cutoff voltage of 0.9-1.0 volts; the cutoff value also relies on the cutoff voltage of the device in use.


To summarize, the following chemistry cross reference chart provides a comparison of LR44 battery equivalents and replacements:


Chemistry Alkaline Silver-Oxide Zinc Air Nickel Metal Hydride Mercury-Oxide
Nominal Voltage 1.5V 1.55V 1.4V 1.2 1.35V
End-Point Voltage 1.0V 1.2V 1.2V 1 1.1V
Notes Voltage drops over time Very constant voltage Slightly lower output voltage, large capacity; used in hearing aid devices Rarely used; rechargeable Slightly lower output voltage, good capacity, contains mercury, no longer in use
Typical Labels LR44, 76A, AG13, LR1154, A76 SR44W, SR44, SR44SW, 157, 357, 303, SG13, AG13, S76, A76, SR1154 675, Blue Tab, ZA675, PR44, 7003ZD Custom labels indicating rechargeable chemistry and battery size MR44, MR1154
Typical Capacity 110-130 mAh 150-200 mAh 600-700 mAh 85-90 mAh 180-200 mAh


Every battery chemistry has advantages and disadvantages; which battery to use is determined by the device being used, the availability of specific chemistries, personal demands and preferences, and, of course, their prices.


Ⅶ Alkaline LR44 Vs. Silver-Oxide SR44 Vs. Zinc-Air PR44 Battery

Alkaline LR44 batteries have a nominal voltage of 1.5 volts and a cutoff voltage of 0.9-1.0 volts; when the battery discharges, the output voltage lowers almost continuously.


LR44 batteries have a standard capacity of 110-130 mAh, while some LR44 batteries claim a substantially higher capacity, comparable to silver-oxide batteries.


Actual capacity is also affected by the cutoff voltage of the devices powered by these batteries, with some, such as watches, experiencing dependability concerns when the battery voltage falls below 1.2 volts. These and similar gadgets should be powered by SR44 silver-oxide batteries.


LR44 batteries typically have a shelf life of 3 years, although with breakthroughs in chemistry, some LR44 batteries now have a shelf life of 4-5 years.


LR44 batteries are widely available and reasonably priced at local hardware stores and internet retailers.


Silver-oxide SR44 batteries have a slightly higher nominal voltage of 1.55 volts and a higher cutoff voltage of 1.2 volts when compared to alkaline LR44 batteries - following discharge, the output voltage declines, but not nearly as much as the voltage of alkaline LR44 batteries. As a result, SR44 batteries are the preferable choice for applications requiring a more or less constant output voltage, such as watches and some medical instruments.


In addition, the nominal capacity of silver-oxide batteries is higher, typically in the 150-200 mAh range, but this often depends on discharge currents - some low-drain models claim to have capacity of more than 200 mAh.


The SR44 battery has a very low self-discharge rate - SR44 models with a shelf life of 5-7 years are common, with some models having a shelf life of 7-10 years.


SR44 batteries are slightly more expensive than LR44 batteries, however they are suggested for more sensitive equipment such as watches, medical instruments, automobile keys, and so on.


battery for a duracell 675


Zinc-air PR44 batteries, often known as Blue Tab, PR44, or 675 batteries, are almost solely used to power hearing aid systems.


Zinc-air batteries have a somewhat lower beginning voltage of 1.4 volts (often also labeled as 1.45 volts) and a cutoff voltage of 1.2 volts - the output voltage is relatively steady during discharge.


Zinc-air PR44 batteries have the highest capacity in the 600-700 mAh range of all chemistries, which is nearly 3-4 times greater than the capacity of silver-oxide batteries.


However, zinc-oxide batteries have a'minor difficulty' in that their electrolyte is 'wet,' and they produce energy by using oxygen from the air (thus the moniker 'zinc-air'). Zinc-air batteries have a colored tab (each zinc-air battery size has a different color tab) that must be peeled off before use. When the tab is removed, air (oxygen) enters the battery, which begins to produce voltage/electricity within a few minutes.


The electrolyte in the battery dries out as it ages, and the battery dies. Also, if the battery is discharged, it dies.


After the tab is removed, zinc-air batteries can last for a few weeks at most, depending on the battery model, ambient temperature, and other factors.


Because of these characteristics, zinc-air batteries, such as PR44, Blue Tab, or 675 batteries, are utilized as hearing aid batteries.


Ⅷ LR44 Battery Safety Concerns

Modern LR44 and other button/coin-cell batteries are produced of non-toxic materials and do not contain mercury, cadmium, or other heavy metals.


LR44 batteries, on the other hand, are little and shiny things that can attract children and pets; if eaten, they can cause electrolysis in the body, which can release very hazardous chemicals and cause internal burns, both of which are extremely harmful.


If an LR44 or comparable battery is eaten, contact the nearest emergency center, explain what happened, and follow their advice.


Ⅸ Frequently Asked Questions About IR44 Batteries

1.What battery is equivalent to LR44?

The LR44 battery is a 1.5 V alkaline battery. AG13 and L1154 are the most common comparable batteries.


2.Does Energizer 357 replace LR44?

Energizer 357/303 silver oxide battery with high performance and long life in bulk container. LR44 AG13 SR44 battery replacement. The Energizer 357/303 is a 1.55 Volt silver oxide button cell battery with several drains.


3.What is the difference between LR44 and SR44 battery?

Physically, LR44 and SR44 are the same size. The SR version, on the other hand, has a slightly higher terminal voltage (1.55v -v- 1.5v) and a bigger capacity. There are numerous products on the market that are designed to function with the LR44 battery. Because of the redirect from SR44, the article must relate to SR44 batteries.


4.What are LR44 batteries used for?

In today's watches, electronics, and digital devices, the LR44 battery provides good storage capacity, high performance, and dependability. This LR44 button battery is utilized in a wide range of applications, including calculators, thermometers, electronic toys, small radios, cameras, and other low-power devices.


5.What does LR stand for in batteries?

How can I decipher the symbols on batteries? For instance, LR denotes a round alkaline battery, but CR denotes a round lithium battery. The first letter represents the type of battery, while the second represents its shape (R meaning round).


6.Can I use AA batteries instead of LR44?

These handy battery holders with switches may be found for a reasonable price on the regular electronics websites (just search "battery holder"). Choose one that has the correct quantity and type of batteries. Because LR44 is alkaline, AAs or AAAs are a one-to-one substitute.


7.Is LR44 a lithium battery?

In a nutshell: No such thing as a lithium LR44 battery exists (or lithium SR44 battery). Alkaline, silver oxide, and zinc-air 11.6 x 5.4 mm batteries are available, however no lithium 11.6 x 5.4 mm batteries are available.


8.Can I replace LR44 with SR44?

Yes, the SR44 can be used in place of the LR44 and vice versa. The SR version has silver oxide, which is more expensive, has a higher power density, and is better for use in low drain, extended battery life applications like digital calipers and timepieces.


9.What are LR44 cell batteries?

The LR44 1.5V Battery is a general-purpose 1.5 volt alkaline button cell battery. The LR44 1.5V Battery is commonly found in watches, calculators, and medical equipment. A button cell battery is a tiny, round battery with a diameter of 11.6mm(0.457 inch) and a thickness of 5.4mm(0.21 inch).


10.What household items use LR44 batteries?

Calculators, thermometers, gun sights, electronic keys, electronic toys, computer motherboards, dog collars, and medical equipment, laser pointers, small radios, cameras, wrist watches, toys, and portable gadgets all use the LR44 battery.


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