Discover the Uses of CR123A Batteries

10 October 2024 249


Understanding CR123A Batteries

Common Applications of CR123A Batteries

Advantages of Using CR123A Batteries

Where Can You Buy CR123A Batteries?

Considerations When Choosing CR123A Batteries

Recommendations and Best Practices

Frequently Asked Questions



In today’s tech-driven world, lithium batteries play a crucial role in powering our devices. Among these, the CR123A lithium battery stands out for its unique performance. Known for its high voltage output and long lifespan, it meets the demands of specific fields like security systems and photography. This article delves into the applications, benefits, and selection tips for CR123A lithium batteries, helping you make informed choices for your power needs.


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Understanding CR123A Batteries


What is a CR123A battery?​


The CR123A is a compact, high-energy lithium-manganese dioxide (LiMnO2) battery with a nominal voltage of 3.0V and a capacity of 1400mAh to 1550mAh, depending on the brand. Measuring 17 mm in diameter and 34 mm in height, it is lightweight (16-18 grams) and known for its high energy density, long shelf life of up to 10 years, and ability to perform in extreme temperatures ranging from -20°C to +60°C (-4°F to 140°F). Widely used in high-drain devices, CR123A lithium battery powers flashlights, cameras, smoke alarms, medical equipment, and tactical gear, delivering consistent voltage throughout its lifespan. While non-rechargeable, it provides superior capacity compared to rechargeable counterparts and must be handled with care to prevent short-circuiting.



Technical Specifications of CR123A


CR123A Voltage and Capacity

The CR123A battery delivers a consistent voltage of 3V, making it ideal for devices that demand stable power. With a capacity ranging from 1400mAh to 1550mAh, it ensures long-lasting performance. This high capacity supports power-hungry devices like high-output LED lights and security systems, providing reliability and efficiency.


CR123A Size and Dimensions


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Compact yet powerful, the CR123A battery measures approximately 17mm in diameter and 34mm in length. Its cylindrical shape and button top design allow easy installation in various devices. Weighing just 17 grams, it offers a balance of size and power, making it suitable for both everyday use and specialized applications.


Comparison with Other Batteries


CR123A vs. AA Batteries

When comparing CR123A batteries to AA batteries, you notice significant differences. The CR123A provides a higher voltage output of 3V, while AA batteries typically offer 1.5V. This makes the CR123A more suitable for high-performance devices. Additionally, the CR123A's lithium chemistry offers a longer lifespan and more stable discharge rate compared to the alkaline chemistry of AA batteries.


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CR123A vs. 18650 Batteries

The CR123A and 18650 batteries serve different purposes. While both are lithium-based, the CR123A is smaller and more compact, making it ideal for portable devices. The 18650, on the other hand, is larger and often used in applications requiring higher capacity and rechargeable options. The CR123A’s non-rechargeable nature and high energy density make it perfect for devices where frequent battery changes are impractical.


CR123 vs CR123A


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CR123 is usually a rechargeable lithium battery with a variety of electromotive force and capacity specifications, mainly used in devices such as cameras and flashlights; while CR123A is a non-rechargeable lithium manganese battery with a capacity of about 1400mAh to 1550mAh and a voltage of 3V, widely used in electronic devices such as cameras and flashlights that require high energy density.


16340 vs CR123A

The 16340 is a rechargeable lithium-ion battery with a nominal voltage of 3.6-3.7V and slightly lower capacity (typically 600-800 mAh), making it better suited for reusable applications, whereas the CR123A is a non-rechargeable lithium-manganese dioxide battery with a nominal voltage of 3.0V and higher capacity (1400-1550 mAh), ideal for devices requiring long shelf life and consistent, single-use performance.



Common Applications of CR123A Batteries


CR123A batteries have become indispensable in various fields due to their high energy density and reliable performance. Their compact size and consistent voltage output make them ideal for both everyday and specialized applications. Let’s explore some of the common uses of the batteries CR123A.


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Photography Equipment


Use in Cameras

You will find CR123A batteries frequently used in cameras, especially those requiring a compact power source with high voltage. These batteries provide the necessary energy to power advanced features like autofocus and image stabilization. Their long-lasting performance ensures that you can capture moments without frequent battery changes, making them a preferred choice for photographers.


Flash Units

In addition to cameras, CR123A batteries power flash units. The high energy density of these batteries allows flash units to recharge quickly, providing consistent lighting for your photography needs. Whether you’re shooting in low-light conditions or capturing fast-moving subjects, CR123A batteries ensure your flash units perform optimally.


Security Devices


Home Security Systems

CR123A batteries play a crucial role in home security systems. Their high capacity and stable discharge rates make them suitable for devices like wireless cameras and alarm systems. You can rely on these batteries to keep your security devices operational day and night, providing peace of mind and ensuring the safety of your home.


Motion Sensors

Motion sensors also benefit from the use of CR123A batteries. These sensors require a reliable power source to detect movement accurately and trigger alarms when necessary. The consistent voltage output of CR123A batteries ensures that motion sensors function effectively, making them a trusted choice for security professionals and homeowners alike.


CR123A batteries excel in both household and specialized settings, delivering high voltage output even in extreme conditions. Their versatility and adaptability make them a preferred choice for outdoor enthusiasts, emergency responders, and professionals who demand reliability and performance from their power sources.



Advantages of Using CR123A Batteries


High Energy Density


CR123A batteries stand out for their high energy density. This feature makes them a preferred choice for devices that require substantial power.


Longer Lifespan


You benefit from the longer lifespan of CR123A batteries. They can last about 6 to 7 years, providing reliable power over extended periods. Their shelf life reaches up to 10 years, retaining 90% of their capacity even after a decade. This longevity ensures you won’t need frequent replacements, saving both time and money.


Consistent Performance


CR123A batteries are reliable. Their stable 3V output supports devices such as cameras and security systems, ensuring they operate at their best. Even in applications that require extremely demanding battery performance, such as security equipment that needs to run for a long time and cannot have any power fluctuations, 3v CR123A lithium batteries can also demonstrate their extraordinary reliability.


Temperature Resilience


The resilience of CR123A batteries in various temperatures enhances their appeal. They perform well in both extreme heat and cold, making them suitable for diverse environments.


Performance in Extreme Conditions


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You can trust CR123A batteries to operate effectively in extreme conditions. Whether you’re in a hot desert or a freezing mountain, these batteries provide dependable power. Their lithium-based chemistry ensures they withstand harsh temperatures without losing efficiency.


Reliability in Outdoor Use


For outdoor enthusiasts, CR123A batteries offer unmatched reliability. Their robust design and temperature resilience make them ideal for outdoor gear like flashlights and motion sensors. You can explore the great outdoors with confidence, knowing your devices will stay powered.


CR123A batteries excel in delivering high energy density and temperature resilience. Their long lifespan and consistent performance make them a valuable choice for both everyday and specialized applications. Whether you’re using them in photography equipment or security devices, these batteries provide the reliability and efficiency you need.



Where Can You Buy CR123A Batteries?


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CR123A batteries can be purchased through a variety of sources. Here are some recommended places to buy them:


Physical Stores


At Walmart or Target malls, you can find CR123A batteries by visiting the electronics or hardware section. Brick-and-mortar stores offer more visual product displays and on-site counseling to help you choose the right battery.


E-Commerce Platforms


At Home Depot or Lowe’s, you can find batteries for security systems or flashlights. Alternatively, you can search for “CR123A batteries” on e-commerce platforms and you’ll see a variety of brands and sizes to choose from. These platforms usually provide abundant product information and user reviews that can help you make a purchase decision. There are many merchants on e-commerce platforms with fierce price competition, so you can often find batteries with better value for money.


Specialized Dealers


Some specialized battery dealers or agents also sell CR123A batteries. These dealers usually work with various brands such as Energizer, Panasonic, SureFire and Streamlight, which can provide more comprehensive product choices and professional after-sales service.


Official Brand Websites


Some famous battery brands such as Panasonic may have their own official websites or online shopping malls. Buying through these official channels can ensure the quality and authenticity of the battery. The official website may also provide information on the battery’s technical specifications, usage instructions and after-sales service, which will help you better understand the battery’s performance.



Considerations When Choosing CR123A Batteries


When selecting CR123A batteries, you must consider several factors to ensure optimal performance and reliability. Understanding these considerations will help you make informed decisions for your devices.


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Brand and Quality


Trusted Manufacturers

Choosing CR123A batteries from reputable manufacturers ensures quality and safety. Brands such as Duracell and FDK America, Inc. are widely recognized for their high standards. These brands offer batteries with stable power and long-lasting performance. Therefore, it is important to check the manufacturer’s reputation before making a purchase.


Avoiding Counterfeits

The use of counterfeit batteries may pose a safety risk to your equipment, as they often do not have the quality control standards necessary for genuine products. To avoid these risks, it is recommended that you purchase CR123A batteries from a reliable retailer. When purchasing, look out for the official packaging and visit the manufacturer’s official website if necessary to verify the authenticity of the product.


Cost vs. Performance


Budget-Friendly Options

If you’re looking for cost-effective solutions, consider brands like AmazonBasics. These alternatives offer reasonable performance at a lower price. They are suitable for less demanding applications where premium performance isn’t necessary.


Premium Choices

For high-power needs, invest in premium CR123A batteries. Brands like Duracell provide superior energy capacity and steady voltage. These options are ideal for critical devices like security systems and high-performance cameras.


Choosing the right CR123A battery involves balancing quality, cost, and performance. By focusing on trusted brands and understanding your specific needs, you can ensure that your devices receive the power they require.



Recommendations and Best Practices


Storage and Handling


Safe Storage Tips

Proper storage of CR123A batteries can extend their life and ensure their safety. It is recommended that you place them in a cool and dry environment away from direct sunlight. Using a dedicated battery storage container will help keep the batteries organized and provide the necessary protection.

Customer Testimonial: “Excellent material quality, easy to use/open/close and helps me keep my batteries organized. Good stuff.”

Consider investing in a storage box that fits the size of CR123A batteries. This prevents accidental short-circuiting and keeps them easily accessible.


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Proper Disposal Methods

Disposing of CR123A batteries correctly is crucial for environmental safety. Never dispose of them in the regular trash. Instead, you should take them to a designated battery recycling center. Many electronics stores offer battery recycling services. Be sure to follow your local battery disposal regulations to ensure that you are in compliance and doing your part to help the environment.


Maximizing Battery Life


Usage Tips

To extend the life of your CR123A batteries, use them in devices that match their specifications. Avoid mixing old and new batteries, as this can lead to leakage or reduced performance. Turn off devices when not in use to conserve battery power.


Maintenance Advice

Regular maintenance of your devices can also prolong battery life. Clean the battery contacts in your devices to ensure a good connection. Check for corrosion or dirt, and clean with a soft cloth if necessary.

Customer Testimonial: “The box is pretty cool. Very helpful to keep my spare batteries sorted.”


By following these best practices, you can ensure that your CR123A batteries perform optimally and last longer. Proper storage, handling, and maintenance are key to getting the most out of your power sources.



In summary, CR123A 3v battery offers a potent combination of performance and reliability. Their high energy density and consistent voltage output make them ideal for both household and specialized applications. You benefit from their long lifespan and temperature resilience, ensuring your devices remain powered in various conditions. Consider the battery CR123A for your specific needs, whether you’re an outdoor enthusiast, a professional, or someone seeking dependable power solutions. By choosing reputable brands and following best practices for storage and disposal, you ensure optimal performance and contribute to environmental sustainability.



Frequently Asked Questions

Are CR123A batteries rechargeable?

CR123A batteries are primary batteries which are considered disposable (or recyclable) and not rechargeable.

What are some common CR123A battery replacements available in the market?

CR123A battery equivalents are also known as EL123A, DL123A, RL123A, and more.

Is CR123A the same as 123?

They are the same battery with just a slight truncation in nomenclature, i.e. CR123 is the label which is commonly used for CR123A batteries.

Where to buy CR123A?

CR123A batteries are extremely common and popular. This means that a wide variety of manufacturers make these batteries and a wide variety of retailers sell the battery.

Are CR123 and CR123A interchangeable?

Yes, CR123 and CR123A batteries are generally interchangeable in most devices due to their similar dimensions and specifications.

What is the size of a CR123A battery?

The CR123A battery is classified by its 34.5 x 17mm or 2/3A cell size, lithium (LiMnO2) chemistry, and high 3V voltage, making them a great choice as flashlight or lithium camera batteries.

Is there a difference between CR123 and CR123A?

The CR123 battery is exactly the same as a CR123A battery. The difference in designations comes from different manufacturer’s designation of their products.

What are the dimensions of a CR123A battery holder?

The size of a CR123A battery box varies by manufacturer and design, and there is no uniform standard size. However, the common CR123A battery box on the market has a size of 43 x 18 x 14mm.

How long do 3V CR123A batteries last?

Despite being small, the CR123A 3v lithium battery will last about five to six years in a product that has general usage. Its usage in door contacts, such as the Honeywell 5816, can vary the life of the battery vary greatly.

What are CR123A batteries used for?

CR123A batteries are now widely used in wireless security, home automation, smoke detectors, illumination equipment, tactical equipment and more. Choosing a CR123A for these applications has many advantages.

Can I use 2 x CR123A batteries instead of an 18650 battery?

Sometimes, but not always. Some 18650 battery-powered flashlights and devices have long, spring-loaded interiors to account for varied battery length, allowing 2 x CR123A batteries to squeeze in. 18650s are slightly thicker than CR123As, so you may need a battery sleeve for a secure connection. 

Are there rechargeable CR123A batteries?

Yes, but they are often referred to as RCR123A or 16340 batteries. They are slightly shorter (16mm) compared to CR123As, utilize lithium-ion chemistries, and usually have lower energy capacities. It’s important to note that RCR123A batteries usually have a 3.6 – 3.7 voltage, and not all flashlights and cameras can use both CR123As and their rechargeable counterparts.


Read More:

Comprehensive Analysis of CR123A battery: Features, Applications and Purchase


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Anderson Snape
Anderson Snape, born in 1972, completed his undergraduate studies at Loughborough University in the UK in 1993 and received a bachelor's degree in electrical engineering. In 1996, he furthered his studies and obtained a master's degree from Newcastle University. As a senior engineer in the field of integrated circuit testing, Anderson has been working in the chip testing industry for more than 20 years, accumulating profound professional experience and holding unique insights into the industry. He not only focuses on technical practice, but also actively engages in chip-related science popularization work. At the same time, he keeps up with the current hot topics in the semiconductor industry and has made important contributions to the progress and development of the industry.