What Is An Lr44 Battery

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Are you curious about LR44 batteries? You’ve come to the right place! LR44 batteries, also known as AG13 batteries, are small, button-shaped batteries commonly used in a variety of devices such as watches, calculators, toys, and medical devices. These batteries are compact and provide a reliable source of power for a range of electronic applications. Whether you’re a tech enthusiast or simply looking for information on LR44 batteries, this article will provide you with a comprehensive understanding of what LR44 batteries are, their features, uses, and why they are a popular choice among consumers. So, let’s dive in and explore the world of LR44 batteries!

Inside This Article

  1. What Is An LR44 Battery
  2. Overview of LR44 Batteries
  3. Uses and Applications
  4. How LR44 Batteries Work
  5. Conclusion
  6. FAQs

What Is An LR44 Battery

An LR44 battery is a small, cylindrical alkaline battery that is commonly used in a variety of electronic devices. It is known by different names such as AG13, A76, and 357A. These batteries are widely used in calculators, watches, toys, cameras, remote controls, and other small electronic devices.

The LR44 battery is a compact and lightweight power source that provides consistent and reliable performance. Its compact size makes it easy to fit into tight spaces, while its alkaline chemistry ensures a long-lasting power supply.

LR44 batteries are typically 11.6mm in diameter and 5.4mm in height, making them small enough to be used in devices with limited space. They are primarily designed to deliver a stable voltage of 1.5V, which is sufficient to power most small electronic devices.

These batteries are easily recognizable by their silver color and the markings on their labels, which usually include the battery type and voltage. They are widely available in retail stores, online marketplaces, and electronic supply shops.

LR44 batteries are widely used due to their compatibility with a wide range of electronic devices. Whether you need to power a digital thermometer, a laser pointer, or a digital scale, chances are an LR44 battery will get the job done.

Overview of LR44 Batteries

LR44 batteries, also known as AG13 or A76 batteries, are small, cylindrical batteries commonly used in various electronic devices. They belong to the LR44 button cell battery family, with a diameter of 11.6mm and a height of 5.4mm. These batteries are widely used in devices that require low to moderate power consumption, such as calculators, watches, toys, medical devices, and small electronic gadgets.

LR44 batteries are known for their compact size and reliable power source. They are composed of alkaline chemistry, which provides a reliable and long-lasting energy supply. With a voltage of 1.5 volts, they are designed to deliver a steady and consistent power output to support the functioning of electronic devices.

One of the key advantages of LR44 batteries is their versatility. They are compatible with a wide range of devices that require button cell batteries. Their compact size allows for easy installation in small electronic devices that have limited space for power sources. Additionally, LR44 batteries have a relatively long shelf life, making them ideal for occasional use devices that may be stored for extended periods.

LR44 batteries are readily available in the market, both in brick-and-mortar stores and online platforms. They are often sold in multipacks, providing users with a convenient and cost-effective solution. Many LR44 batteries also come with leak-proof designs, ensuring the safety of the device and preventing damage due to battery leakage.

When it comes to replacing LR44 batteries, it is important to ensure compatibility with the device’s requirements. While LR44 batteries are commonly used, some devices may have specific battery needs, so it is essential to refer to the device’s manual or consult a professional if you are unsure.

Uses and Applications

LR44 batteries are widely used in a variety of electronic devices due to their compact size and reliable power source. Here are some of the common uses and applications:

1. Watches: LR44 batteries are commonly used in wristwatches, providing the necessary power to keep the timepiece running accurately. Their small size is ideal for fitting into the compact design of wristwatches.

2. Calculators: Many calculators, both handheld and desktop models, rely on LR44 batteries to power their mathematical functions. These batteries offer long-lasting power and are compatible with various calculator brands.

3. Thermometers: Digital thermometers often use LR44 batteries to provide the energy needed to measure and display accurate temperature readings. They are commonly used in medical thermometers, weather thermometers, and cooking thermometers.

4. Keyless Entry Systems: LR44 batteries are also found in keyless entry systems for cars, allowing users to lock, unlock, and start their vehicles with ease. These batteries provide the required power to operate the electronic components of the keyless entry system.

5. Toys and Games: Many electronic toys and games, such as remote-controlled cars, musical instruments, and handheld gaming devices, utilize LR44 batteries. These batteries ensure smooth and uninterrupted gameplay or playtime.

6. Hearing Aids: LR44 batteries are commonly used in hearing aids due to their compact size and long-lasting power. They provide the necessary energy for sound amplification, allowing individuals with hearing impairments to hear more clearly.

7. Remote Controls: LR44 batteries are often found in remote controls for various devices, including televisions, stereos, and air conditioners. These batteries enable users to conveniently operate their electronic devices from a distance.

8. Medical Devices: LR44 batteries are frequently used in small medical devices such as blood glucose meters, digital scales, and portable medical diagnostic tools. They provide reliable power for accurate readings and measurements.

9. LED Flashlights: Some compact LED flashlights are compatible with LR44 batteries, serving as a convenient and portable light source. These batteries provide sufficient power to illuminate in emergency situations or for everyday use.

10. Laser Pointers: LR44 batteries are often used in laser pointers, allowing for a precise and focused beam of light. These batteries ensure that the laser pointer functions properly during presentations, lectures, and other professional settings.

Overall, LR44 batteries have a wide range of uses and applications, making them a versatile choice for various electronic devices. From wristwatches to keyless entry systems, thermometers to remote controls, these batteries provide reliable power to keep our everyday gadgets functioning smoothly.

How LR44 Batteries Work

LR44 batteries, also known as AG13 batteries or button cell batteries, are small, cylindrical power sources commonly used in various electronic devices. Despite their compact size, LR44 batteries pack a lot of energy and are known for their reliable performance. But have you ever wondered how these tiny powerhouses actually work? Let’s take a closer look.

LR44 batteries are composed of several key components that work together to produce electrical energy. The core of the battery consists of a cathode (positive terminal) and an anode (negative terminal), made from different types of chemicals. In between the two terminals is an electrolyte solution that allows for the flow of ions.

When a circuit is completed by connecting the positive and negative terminals, a chemical reaction is initiated within the battery. This reaction causes the cathode to release electrons, becoming negatively charged, while the anode accepts the electrons, becoming positively charged. This flow of electrons creates an electric current that can power a wide range of devices.

The specific chemicals used in LR44 batteries vary depending on the manufacturer, but they typically consist of a combination of silver oxide and zinc. The silver oxide acts as the cathode, while the zinc acts as the anode. The electrolyte solution, usually potassium hydroxide, helps facilitate the ion flow and maintain the battery’s stability.

The discharge curve of an LR44 battery is relatively flat, meaning it provides a consistent voltage output throughout its lifespan. This makes it ideal for devices that require stable power, such as calculators, watches, and medical devices.

LR44 batteries are also known for their long shelf life. When stored properly, they can retain their energy for several years, making them a reliable choice for emergency devices and backup power sources.

It’s important to note that LR44 batteries are not rechargeable. Once their chemical reactions are complete, the battery loses its ability to generate electricity and must be replaced.

Overall, LR44 batteries are a versatile and dependable power source for a wide variety of electronic devices. Their compact size, consistent voltage output, and long shelf life make them a popular choice for many users. Whether you need to power a small flashlight, a remote control, or a digital thermometer, LR44 batteries are ready to deliver the energy you need.


In conclusion, the LR44 battery is a compact and powerful cell that is widely used in various electronic devices. Its small size and high energy density make it an ideal choice for portable and low-power applications. Whether you need to power a small gadget, a digital thermometer, or a remote control, the LR44 battery can provide reliable and long-lasting performance.

With its availability and affordability, the LR44 battery has become a popular choice among consumers. Its versatility and compatibility with a wide range of devices make it a convenient option for anyone in need of a reliable power source. So, the next time you come across a device that requires an LR44 battery, you’ll know exactly what it is and why it’s the perfect choice for your portable electronics.


1. What is an LR44 battery?

An LR44 battery, also known as an AG13 or A76 battery, is a small-sized, button cell battery commonly used in a variety of electronic devices such as calculators, watches, toys, and medical devices. It is a compact and lightweight battery that contains alkaline chemistry, providing a reliable power source for these devices.

2. How long does an LR44 battery last?

The lifespan of an LR44 battery can vary depending on the usage and the specific device it is used in. Generally, LR44 batteries have a capacity of around 150-200mAh, which means they can power low-drain devices for several months to a year. However, high-drain devices may deplete the battery’s power more quickly. It is recommended to replace the LR44 battery when you notice a decrease in performance or when the device stops functioning.

3. Can an LR44 battery be recharged?

No, LR44 batteries are not rechargeable. They are designed to be single-use disposable batteries and cannot be recharged once depleted. Attempting to recharge an LR44 battery can cause damage or even pose a safety risk. It is advisable to replace the LR44 battery with a new one when it no longer provides sufficient power.

4. Can I use other battery types as a substitute for LR44?

While there are various button cell batteries available, it is important to use the correct battery type recommended by the device manufacturer. While some batteries may have similar sizes and voltages, they may not provide the same performance and could potentially damage the device or pose a safety risk. It is best to consult the device’s user manual or contact the manufacturer to ensure you are using the appropriate battery type.

5. Where can I buy LR44 batteries?

LR44 batteries are widely available and can be purchased from various sources. They are commonly found in electronics stores, general retail stores, and online marketplaces. It is recommended to purchase LR44 batteries from reputable sellers to ensure their quality and authenticity.