
The CR123A battery is a popular choice for many portable devices. It measures 17mm in length, 17mm in width, and 5.4mm in height.
This compact size makes it ideal for use in small flashlights, cameras, and other gadgets. Its dimensions are standardized across most manufacturers.
The CR123A battery has a nominal voltage of 3 volts and a capacity of around 1200mAh. This is sufficient for most devices that require a 3-volt power source.
Its performance is also noteworthy, with a discharge rate of up to 10A. This is important for devices that require a lot of power, like high-intensity flashlights.
The CR123A battery's long shelf life is another advantage. It can last for up to 10 years when stored properly, making it a reliable choice for backup power.
Battery Basics
The CR123A Battery is a cylindrical cell battery with a lithium chemistry, similar in shape to a smaller version of a C Cell Battery. It's widely used for various applications, including medical devices and military-grade technology.
These batteries are produced by well-known brands such as Panasonic, Duracell, Energizer, and Tenergy, as well as smaller companies.
For more insights, see: D Cell Battery Size
What Is a Battery?
A battery is a type of energy storage device that powers a wide range of devices and applications.
Batteries come in different shapes and sizes, but one common type is the CR123A Battery, which is a cylindrical cell battery with a lithium chemistry.
CR123A Batteries are widely used in various applications, including medical devices and military-grade technology, making them a popular choice.
These batteries are produced by many brands, such as Panasonic, Duracell, Energizer, and Tenergy, among others.
The shape of a CR123A Battery is similar to a smaller version of a C Cell Battery, or can be thought of as a can.
A unique perspective: Alkaline Cell Battery
Battery
The CR123A battery is a cylindrical cell battery with a lithium chemistry, similar in shape to a smaller version of a C Cell Battery. It's widely used in various applications, including medical devices and military-grade technology.
To choose the right CR123A battery, prioritize IEC 60086-2 compliance for dimensional consistency, which means a diameter of 17.0±0.5mm and a height of 34.5±0.5mm. Verify UL certification for safety and UN38.3 transportation compliance.
Performance metrics are crucial, with a minimum 15-year shelf life, ≤0.5% annual self-discharge rate, and an operating temperature range of -40°C to 60°C. For rechargeable variants, validate cycle life, which should be ≥500 cycles at 80% capacity retention.
When considering cost-efficiency factors, evaluate the total cost of ownership, especially for high-volume applications (10,000+ units), which can achieve 40-60% cost reduction through tiered pricing. Non-rechargeable cells offer lower upfront costs ($0.35-$0.80/unit), while rechargeables provide long-term savings despite higher initial pricing ($1.50-$4.00/unit).
Rechargeable variants command 200-300% price premiums but deliver long-term value in frequently cycled devices. Suppliers with Fortune 500 partnerships typically demonstrate superior quality control processes.
If you need customization capabilities, look for suppliers like General Electronics Technology, which offers customizable options for OEM integrations.
For more insights, see: Dimensions of C Size Battery
Specifications and Dimensions
CR123A batteries are standardized to ensure dimensional consistency, with a diameter of 17.0±0.5mm and a height of 34.5±0.5mm. This standard is based on IEC 60086-2 compliance.
Prioritizing dimensional consistency is crucial for ensuring compatibility with devices. However, capacity variance between 1400-1650mAh significantly impacts operational lifespan in continuous-use devices.
To ensure dimensional consistency and compatibility, it's essential to verify the supplier's adherence to IEC 60086-2 standards.
Meet the R: The Rechargeable Workhorse

The RCR123A is a secondary, lithium-ion battery that can be charged hundreds of times.
They're essentially rechargeable versions of the CR123A batteries, so you'll want to make sure your device can handle the increased voltage.
A large variety of 16340 batteries, which is another name for the RCR123A, have a lithium-cobalt-oxide (LiCoO2) chemistry, making them compatible with Li-ion smart chargers.
To avoid any issues, use high-quality smart chargers to charge your RCR123A.
The most important thing to know about the RCR123A is its dimensions: 16mm in diameter and 34mm in height, which is why it's also known as a 16340 battery.
They're designed for frequent use, so they excel in high-drain devices that would quickly burn through single-use batteries.
Here are some examples of devices that can benefit from the RCR123A:
- Arlo cameras
- LED flashlights
- Camcorders
- Video game consoles
- Radios
- Cordless vacuums
- Digital cameras
- Vapes
Choosing a Battery
Prioritize IEC 60086-2 compliance for dimensional consistency, which means looking for batteries with a diameter of 17.0±0.5mm and a height of 34.5±0.5mm.
Verify UL certification for safety and UN38.3 transportation compliance to ensure the battery meets industry standards.
For continuous-use devices, capacity variance between 1400-1650mAh significantly impacts operational lifespan.
Benchmark against industry standards: minimum 15-year shelf life, ≤0.5% annual self-discharge rate, and an operating temperature range of -40°C to 60°C.
For rechargeable variants, validate cycle life (≥500 cycles at 80% capacity retention) to ensure the battery can be reused multiple times.
Evaluate total cost of ownership, as high-volume applications (10,000+ units) can achieve 40-60% cost reduction through tiered pricing.
Non-rechargeable cells offer lower upfront costs ($0.35-$0.80/unit), while rechargeables provide long-term savings despite higher initial pricing ($1.50-$4.00/unit).
Here's a summary of the key considerations:
Dimensions
Dimensions play a crucial role in determining the compatibility and functionality of CR123A batteries. IEC 60086-2 compliance ensures dimensional consistency, with a diameter of 17.0±0.5mm and a height of 34.5±0.5mm.
For specific applications, such as high-drain devices, the RCR123A (or 16340) rechargeable battery is designed with a diameter of 16mm and a height of 34mm. This makes it compatible with devices like Arlo cameras, LED flashlights, and cordless vacuums.

The dimensions of CR123A batteries can vary depending on the type and manufacturer. However, it's essential to verify the dimensions of the battery you're using to ensure it's compatible with your device.
Here's a summary of the dimensions mentioned in the article:
Remember to always check the manufacturer's specifications and dimensions to ensure the best performance and compatibility with your device.
Cr123a Battery
The CR123A battery is a popular choice for many industrial applications due to its compact size and high energy density. It's essential to choose a battery that meets the required dimensions, which are 17.0±0.5mm in diameter and 34.5±0.5mm in height, as per IEC 60086-2 compliance.
When selecting a CR123A battery, consider its performance metrics, including a minimum 15-year shelf life, an annual self-discharge rate of ≤0.5%, and an operating temperature range of -40°C to 60°C. This ensures the battery will perform reliably in various conditions.
For high-volume applications, it's worth noting that tiered pricing can result in a 40-60% cost reduction. For example, Shenzhen Jbwcell offers a price of $0.35/piece at 10,000+ units.
To ensure quality, look for suppliers with ISO 9001 manufacturing certification and batch testing reports. Key quality indicators include consistent internal resistance (≤150mΩ) and hermetic seal integrity.
Here are some options to consider:
Alternatives and Equivalents

The CR123A battery is a versatile and widely used power source, but sometimes you might need an alternative or equivalent. You can use batteries like 123, 123A, 2/3A, 5018LC, BR2/3A, CR123, CR23, DL123A, EL123A, K123LA, L123A, SF123A, and VL123A as direct equivalents.
These batteries are long-lasting and can last up to five years in devices like alarm systems. They have a high energy density, with 280 Wh/kg and 580 Wh/litre.
The 16340 battery is a rechargeable alternative to the CR123A, with the same size and shape but a different chemistry. It's a good option if you need a rechargeable battery that fits in the same locations as a CR123A.
The 16430 battery may fit in the same locations as a CR123A, but it may not provide the same performance or lifespan.
Comparison and Analysis
The CR123A battery dimensions are quite impressive, measuring 17mm in length and 17mm in width.
Its length and width are identical, making it a compact and versatile battery.

In terms of diameter, the CR123A battery measures 17mm, which is a standard size for many devices.
This standard size makes it easy to find compatible batteries and accessories.
The CR123A battery has a height of 34.5mm, which is slightly longer than its length and width.
This slight variation in height makes it a great fit for many devices that require a slightly taller battery.
The CR123A battery's dimensions are similar to the CR2 battery, but not identical.
This similarity makes it easy to switch between the two batteries in some devices.
The CR123A battery's compact size and standard dimensions make it a popular choice for many applications.
Its versatility and convenience have made it a favorite among many users.
A fresh viewpoint: B Size Battery
Market Trends
The global CR123A battery market is projected to grow at a CAGR of 5.8% through 2028, driven by expanding applications in security systems, medical devices, and industrial equipment.
Currently, the market valuation stands at $1.2 billion annually, with a significant share of production coming from Asia-Pacific, accounting for 78% of the global output.

Asia-Pacific dominates production, while North America leads consumption, with a 42% share of the market.
The demand for miniaturized power solutions in IoT devices and increased military spending on tactical equipment requiring reliable power sources are key drivers of growth in the CR123A battery market.
Supply chain vulnerabilities in lithium sourcing and tightening transportation regulations for lithium-based cells present ongoing challenges for the industry.
Recent innovations have achieved 1650mAh capacity within the standardized 17mm diameter x 34mm height dimensions, while maintaining safety compliance.
Vietnam and India are emerging as alternative production hubs to China, shifting regional manufacturing patterns in the CR123A battery industry.
A different take: Lithium Battery vs Alkaline
Frequently Asked Questions
What battery is the same size as 2 CR123?
The 16650 Rechargeable Orbtronic battery has the same diameter as 2 CR123A batteries. This makes it a convenient replacement option for many applications.
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