Ⅰ.Introduction to LR44

The LR44 battery is a common coin cell battery that comes in a variety of chemistries, each with unique properties that are often critical to its application. It is widely used in various electronic devices, such as toys, remote controls, watches, calculators, etc. Almost all well-known brands produce LR44 batteries.

LR44 battery is an alkaline button battery with the advantages of long service life, small footprint, and low cost. Due to high demand for personal use, these batteries are widely sold in stores. Batteries are divided into two categories: high-quality batteries and ordinary batteries. High-quality batteries usually have higher performance and longer life, while ordinary batteries are cheaper and suitable for some applications that do not require too high performance.

LR44 batteries are known for their durability, high capacity, high energy density and reliability. These batteries can last for years and in some cases up to a decade or more. Additionally, they have higher energy density, allowing for better performance while maintaining their small size. These batteries are also highly reliable and rarely malfunction or fail.

Overall, the LR44 battery is a very reliable woven button battery suitable for a variety of electronic devices. They have the advantages of multiple chemical compositions, long service life, small footprint and low cost, and are known for their durability, Known for high capacity, high energy density and reliability.

Ⅱ.Specification parameters of LR44

•Product type:button battery
•RoHS:Not available
•Series:LR
•Rated voltage:1.5V
•Battery Chemistry:Alkaline Manganese Dioxide
•Output voltage:1.5V
•Capacity:120 mAh
•Width:11.6 mm
•Height:5.4 mm
•Package:Tray
•Subcategory:Battery

Ⅲ.Features of LR44

•Superior liquid leakage resistance: Using Murata’s unique special plate processing and sealing technology, superior liquid leakage resistance is achieved.

•Excellent discharge stability and heavy-load pulse characteristics: stable discharge voltage can be obtained even for instantaneous high-current discharge.

•EU Battery Directive・RoHS Directive: This battery does not contain the three substances (mercury, cadmium, lead) specified in the EU Battery Directive and complies with this standard. This battery is not subject to the RoHS directive.

•High cost performance: The cathode material uses relatively cheap manganese dioxide, which has high cost performance.

•Electrochemical properties: The LR44 battery uses alkaline battery technology, and its electrochemical reaction is based on zinc oxide and silver oxide. The voltage provided by this battery is usually 1.5 volts.

•Environmental protection: LR44 batteries usually contain some heavy metals, so proper disposal and recycling procedures should be followed when disposing of them to reduce the impact on the environment.

IV.Basic characteristics and uses of LR44 battery

•Basic features

1.Electrochemical reaction: LR44 battery uses alkaline battery technology, and its electrochemical reaction is mainly based on the reaction of zinc oxide and silver oxide. The voltage produced by this reaction is usually 1.5 volts and is a relatively stable power source. In the electrochemical reaction of the LR44 battery, zinc oxide is a negative electrode material, and silver oxide is a positive electrode material. When the battery discharges, zinc oxide reacts with hydroxyl ions in the electrolyte to produce zinc ions and water, while releasing electrons. These electrons flow to the positive electrode through the external circuit and react with silver oxide to generate silver ions and hydroxide ions.

2.Size: The standard size of LR44 battery is 11.6 mm in diameter and 5.4 mm in height. This compact design makes it suitable for small electronic devices and can be easily embedded into small instruments and toys.

3.LR44 batteries have multiple different logos. In addition to AG13, A76, 76A, and L1154, LR44 batteries may also be called other different names. The specific logos may vary depending on the manufacturer and sales area. This is because different manufacturers and regions may have different naming conventions and standards. However, regardless of which designation is used, the LR44 battery is a battery with specific dimensions and characteristics. It has a wide range of applications and is suitable for a variety of small electronic devices. When purchasing a battery, consumers should consider the power needs of the device and the battery's size and type to choose the right battery.

•Use

1.Watch: LR44 battery is a common button battery. Because of its small size, moderate capacity and high energy density, it is widely used in various small devices, the most common of which is watches. Traditional watches usually use this kind of battery to drive the internal movement so that the watch can operate normally. The voltage of the button battery LR44 is 1.5V and the power is moderate. It can provide stable power for the watch to ensure its normal operation. In addition, due to the small size of this battery, it can adapt well to the internal structure of the watch and will not have a significant impact on the appearance and overall design of the watch.

2.Small electronic equipment: LR44 batteries are also commonly used in small electronic equipment, such as micro laser pointers, mini calculators, mini cameras, etc.

3.Calculator: Small calculators usually use LR44 batteries as power source to ensure long-term reliable operation.

4.Mini LED flashlight: The LR44 battery can provide enough power so that the LED flashlight can emit light normally and with sufficient brightness. The brightness of an LED flashlight usually depends on the type and power of the battery it uses. The LR44 battery is relatively small, which means it doesn’t take up much internal space in the flashlight. This is very important for designing a lightweight and compact LED flashlight.

Ⅴ.Product Data of LR44

Ⅵ.The working principle of LR44

1.Positive electrode (anode): The positive electrode of LR44 battery is usually composed of silver oxide (Ag2O). In this chemical reaction, the silver oxide acts as the positive electrode, accepting electrons.

2.Negative electrode (cathode): The negative electrode is composed of zinc (Zn), which is in the form of zinc oxide (ZnO). In the reaction, zinc oxide acts as the negative electrode, releasing electrons.

3.Electrochemical reaction: Electrochemical reaction occurs between the positive and negative electrodes. In the LR44 battery, silver oxide accepts electrons and undergoes a reduction reaction; while zinc oxide releases electrons and undergoes an oxidation reaction. These reactions cause electrons to flow between the positive and negative electrodes, creating an electric current.

4.Electrolyte: The electrolyte is the ion-conducting medium in the battery, usually a potassium hydroxide (KOH) solution. The electrolyte allows ions to flow between the positive and negative electrodes, maintaining the battery's electrical neutrality.

Ⅶ.Safety matters and battery storage period of LR44

•Safety Precautions

1.Do not charge the battery, as this may cause battery leakage, danger and damage to related charging equipment.

2.Do not short-circuit, heat, throw the battery into fire or attempt to disassemble it

3.When installing the battery, please install the battery in the correct direction. Improper installation may cause a short circuit.

4.Do not forcibly discharge the battery, as this may cause battery leakage or danger.

5.Please remove the exhausted battery from the powered product to avoid over-discharging the battery, which may cause battery leakage and damage to electrical equipment.

6.Please try to avoid using new batteries and used batteries at the same time, and try not to mix batteries of different brands at the same time.

•Battery storage period

1.Can be stored for 1 year at normal temperature and in a suitable environment
(Storage environment temperature is 20±2℃, relative humidity is 55%±20%RH)

2.After 1 year of storage, the battery can retain more than 90% of its capacity.

Ⅷ.Environmental performance of LR44 battery

1.Heavy metal content: LR44 batteries contain some heavy metals, such as silver and zinc. These metals may have some impact on the environment during processing. Therefore, when discarded, they should be disposed in accordance with local waste battery recycling regulations to ensure that these heavy metals are properly treated and do not cause negative impacts on the environment and human health.

2.Production process: The manufacturing process of batteries may also have a certain impact on the environment. Some manufacturers adopt more environmentally friendly production methods and use more environmentally friendly materials to reduce the environmental burden of the manufacturing process.

3.Recycling and Disposal: Battery recycling and disposal are critical to reducing environmental impact. Some areas provide special waste battery recycling bins or recycling centers to ensure that hazardous materials in batteries are properly disposed of. Users should follow relevant regulations and put discarded LR44 batteries into designated recycling containers instead of randomly discarding them in ordinary trash cans.

Frequently Asked Questions

1.Can the power of the LR44 battery be sufficient for long-term use?
The LR44 battery has a relatively small charge, so whether it can last for long periods of time depends on the power consumption and frequency of use of the device being used. If the power consumption of the device is low, the LR44 battery can provide a relatively long use time. Low-power devices such as small watches and simple calculators are typical application scenarios for LR44 batteries. The more frequently you use it, the faster the battery will drain. If the device is used frequently, the life of the LR44 battery will be shortened accordingly.

2.What are the alternatives to LR44 batteries?
Alternatives to LR44 batteries include AG13, SR44, A76

3.How do the voltage and power of the LR44 battery affect the brightness of the LED flashlight?
The nominal voltage of LR44 batteries is 1.5 volts. LED flashlights generally provide a brighter light when the battery voltage is higher, since LEDs require a certain amount of current to achieve their maximum brightness. As the battery voltage drops, the brightness of the LED weakens accordingly.

4.What is the difference between LR44 and 357？
Detailed introduction to the difference between LR44 and 357