CR123A 3V Lithium Battery, CR123 VS CR123A, CR123A Equivalents


CR123A is a specific type of lithium battery commonly used in various devices that require a reliable and high-energy density power source. Here is some information about CR123A batteries:

Key Points:

  • Battery Type: CR123A batteries are non-rechargeable lithium batteries.
  • Size and Shape: They are generally cylindrical in shape and measure approximately 17 mm in diameter and 34.5 mm in length.
  • Voltage: CR123A batteries typically provide 3 volts of power.
  • Chemistry: These batteries often use lithium manganese dioxide chemistry, known for its high energy density and relatively stable voltage output.
  • Applications: CR123A batteries are commonly used in high-drain devices such as digital cameras, flashlights, medical instruments, security systems, and various electronic devices.

Additional Information:

  • Primary Battery: CR123A batteries are primary (non-rechargeable) batteries, meaning they are designed for single-use applications and should not be recharged.
  • Performance: They offer high capacity and high voltage output, making them suitable for devices that require consistent power levels.
  • Availability: CR123A batteries are widely available in stores and online retailers, making them convenient for replacing power sources in compatible devices.
  • Long Shelf Life: These batteries have a long shelf life, making them suitable for storage in emergency kits and devices with infrequent use.

CR123A batteries are popular choices for devices requiring a reliable and long-lasting power source. It’s advised to use them only in devices that are compatible with this specific battery type to ensure optimal performance and safety. If you have any more specific questions about CR123A batteries or need further information, feel free to ask!

CR123A Features and Benefits

CR123A batteries offer several features and benefits that make them a popular choice for various applications. Here are some of the key features and advantages of CR123A batteries:


  1. High Energy Density: CR123A batteries are known for their high energy density, providing a significant amount of power in a compact size.

  2. 3-Volt Output: These batteries typically deliver a stable 3-volt output, making them suitable for devices that require a consistent power supply.

  3. Lithium Chemistry: The lithium chemistry used in CR123A batteries offers excellent performance, including a long shelf life and reliable power delivery.

  4. Non-Rechargeable: CR123A batteries are primary (non-rechargeable) cells designed for single-use applications.

  5. Wide Temperature Range: They can operate effectively over a wide temperature range, making them suitable for use in various environmental conditions.

  6. Lightweight and Portable: Due to their compact size and lightweight construction, CR123A batteries are easy to carry and store.

  7. Low Self-Discharge Rate: These batteries have a low self-discharge rate, allowing them to retain power when not in use for extended periods.


  1. Reliable Power Source: CR123A batteries offer a reliable and consistent power supply, making them ideal for devices that require stable voltage output.

  2. Long Shelf Life: These batteries have a long shelf life, retaining their charge for extended periods when stored properly.

  3. High Capacity: CR123A batteries have a high capacity, providing ample power for devices that demand energy-dense cells.

  4. Versatile Applications: They are used in various devices such as digital cameras, flashlights, medical devices, security systems, and more.

  5. Quick Replacement: Due to their availability in stores and online retailers, CR123A batteries are easy to replace when needed.

  6. Safe to Use: When used as intended and handled properly, CR123A batteries are safe and reliable power sources.

Environmentally Friendly:

  • Recycling: Some companies offer recycling programs for lithium batteries, including CR123A batteries, to promote environmental sustainability.

CR123A batteries are valued for their high energy density, stable power output, and reliability, making them a popular choice for numerous consumer and industrial applications. As with all batteries, it is essential to follow proper disposal and recycling practices to minimize environmental impact. If you have any more specific questions about CR123A batteries or need further information, feel free to ask!

CR123A Battery Specifications

CR123A batteries come with specific technical specifications that outline their performance characteristics. Here are the common specifications for CR123A batteries:

CR123A Battery Specifications:

  1. Battery Type: Lithium non-rechargeable cylindrical cell
  2. Nominal Voltage: 3.0 volts
  3. Chemistry: Lithium Manganese Dioxide (Li-MnO2)
  4. Capacity Range: Typically between 1300mAh to 1700mAh
  5. Dimensions:
    • Diameter: Approximately 17mm
    • Height: Approximately 34.5mm
  6. Weight: Typically around 17-20 grams
  7. Operating Temperature Range: -20°C to 60°C (-4°F to 140°F)
  8. Shelf Life: Up to 10 years when stored properly
  9. Discharge Characteristics:
    • Discharge Cut-off Voltage: 2.0 volts
    • Maximum Continuous Discharge Current: Varies based on the specific brand and model, usually in the range of 1A to 3A
  10. Construction: Typically made of a cylindrical lithium cell with a sealed metal enclosure
  11. Terminals: Often featuring a flat positive terminal and a smaller, slightly raised negative terminal
  12. Chemical Reactions: CR123A batteries produce 3.0 volts through the chemical reaction between lithium and manganese dioxide.


  • CR123A batteries are commonly used in high-drain devices that require reliable power sources, such as digital cameras, flashlights, tactical equipment, medical devices, security systems, and more.


  • Compatibility: It's essential to ensure that the device you intend to use the CR123A battery in is compatible with this specific battery type due to its unique voltage and chemistry.

CR123A batteries are known for their stable voltage output, high energy density, and long shelf life, making them a popular choice for various applications where reliable and consistent power is essential. If you have any more specific questions about CR123A battery specifications or need further information, feel free to ask!

CR123A Battery Applications

CR123A batteries find applications in various devices that demand reliable power sources with high energy density. Here are some common applications where CR123A batteries are frequently used:

1. Flashlights:

CR123A batteries are commonly employed in high-performance LED flashlights due to their ability to provide consistent power output for extended periods, making them suitable for tactical, outdoor, and emergency lighting.

2. Digital Cameras:

Many digital cameras and photography equipment use CR123A batteries to power features like flash units, autofocus systems, and LCD screens, benefiting from the battery's stable voltage and high capacity.

3. Security Systems:

Alarm sensors, keypads, wireless security cameras, and other components of security systems often rely on CR123A batteries for their long-lasting power supply and dependable performance.

4. Medical Devices:

Devices like blood glucose meters, pulse oximeters, thermometers, and other medical instruments utilize CR123A batteries for their compact size, high energy density, and ability to power critical healthcare equipment reliably.

5. Tactical Equipment:

CR123A batteries are favored in tactical gear such as weapon lights, lasers, red dot sights, and other firearm accessories due to their durability, ability to withstand high-impact operations, and consistent power delivery.

6. Survival Gear:

Emergency preparedness kits, portable radios, GPS devices, and other survival gear often feature CR123A batteries for their long shelf life, readiness for immediate use, and effectiveness in extreme conditions.

7. Measurement Instruments:

CR123A batteries power a variety of measurement instruments like laser rangefinders, digital multimeters, and precision tools, providing the necessary energy to perform accurate measurements consistently.

These applications highlight the versatility and reliability of CR123A batteries in powering a wide range of devices that require a stable and long-lasting power source. When selecting CR123A batteries for a specific application, it is important to consider the device's power requirements and compatibility with this particular battery type.

CR123A Battery Equivalents

While CR123A batteries are popular for their high energy density and stable power output, there are some equivalent battery types that can be used as alternatives in certain devices. Here are some CR123A battery equivalents:

1. 16340 (RCR123A):

  • Size: 16340 batteries are rechargeable lithium-ion batteries, also known as RCR123A.
  • Voltage: Typically provides 3.7 volts.
  • Compatibility: When used as a CR123A substitute, ensure the device can handle the higher voltage output of 16340 batteries.
  • Usage: Commonly seen in LED flashlights, lasers, and other high-drain devices.

2. 17345:

  • Size: The 17345 battery is slightly longer than a CR123A.
  • Voltage: Offers 3 volts.
  • Usage: Suitable for devices that can accommodate the additional length compared to standard CR123A batteries.

3. CR17335:

  • Similarity: Shares the same length as a CR123A but may differ slightly in diameter.
  • Voltage: 3 volts.
  • Applications: Can be used as a substitute in devices compatible with CR123A batteries.

4. 15270 (RCR123):

  • Voltage: Typically 3.7 volts.
  • Usage: Rechargeable lithium-ion alternative to CR123A batteries.
  • Compatibility: Check device compatibility due to the higher voltage output compared to CR123A batteries.

5. 2/3A Lithium Battery:

  • Size: Slightly larger than CR123A batteries but can be used in some devices.
  • Voltage: Provides 3 volts.
  • Usage: Suitable for specific devices that can accommodate the difference in size.


  • Ensure the substitute battery type's voltage and dimensions are compatible with the device in question to avoid potential damage or malfunction.
  • When substituting CR123A batteries with equivalents like the ones mentioned above, always consult the device's manual or manufacturer for compatibility and safety guidelines.

While CR123A batteries remain a popular choice for many devices, these equivalents provide options for users looking for alternatives based on specific requirements, such as rechargeability or availability.

Differences between CR123 and CR123A

CR123 and CR123A are both types of lithium batteries, but they have some key differences in terms of voltage, capacity, and chemistry. Here are the main distinctions between CR123 and CR123A batteries:


  1. Voltage: CR123 batteries typically provide a voltage of 3.0 volts.

  2. Chemistry: CR123 batteries often use Lithium Iron Disulfide (LiFeS2) chemistry.

  3. Capacity: The capacity of CR123 batteries can vary but is generally lower than CR123A batteries.

  4. Applications: CR123 batteries are used in various devices such as cameras, flashlights, and medical equipment.

  5. Availability: They might be less common and might not have the same widespread availability as CR123A batteries due to the differences in demand.


  1. Voltage: CR123A batteries also provide 3.0 volts, similar to CR123 batteries.

  2. Chemistry: CR123A batteries commonly use Lithium Manganese Dioxide (Li-MnO2) chemistry.

  3. Capacity: CR123A batteries typically have a higher capacity compared to CR123 batteries, providing longer-lasting power.

  4. Usage: CR123A batteries are widely used in high-drain devices like digital cameras, tactical flashlights, and security systems.

  5. Availability: CR123A batteries are more readily available in stores and online due to their popularity and widespread use.

  6. DataSheet

    CR123A PDF

Key Points of Distinction:

  • Capacity: CR123A batteries generally offer higher capacity compared to CR123 batteries.
  • Chemistry: The chemical composition differs between the two types, impacting factors like energy density and performance.
  • Availability: CR123A batteries are more commonly found in stores and are widely used in various devices.
  • Compatibility: While they are similar in size and voltage, it's important to ensure compatibility with the specific device when choosing between CR123 and CR123A batteries.

Overall, CR123A batteries are more commonly used and readily available due to their higher capacity and popularity in high-drain devices. However, both types of batteries offer reliable power sources for a variety of electronic devices, with the choice often depending on specific device requirements and availability.

CR123A Dimensions

CR123A batteries have specific dimensions that are important to consider when using them in various devices. Here are the typical dimensions of a standard CR123A battery:

CR123A Battery Dimensions:

  • Diameter: Approximately 17 millimeters (0.67 inches)
  • Height: Approximately 34.5 millimeters (1.36 inches)
  • Volume: Around 6.8 cubic centimeters

These dimensions are standardized for CR123A batteries and are essential for ensuring proper fit and compatibility in devices designed to accommodate this specific size of battery. Always check the dimensions of the battery compartment in your device to confirm that CR123A batteries will fit correctly.

If you need further information or have any more specific questions, please feel free to ask!

CR123A Manufacturer

CR123A batteries are manufactured by various companies around the world, and several reputable manufacturers produce high-quality CR123A batteries. Some well-known manufacturers of CR123A batteries include:

1. Panasonic:

Panasonic is a leading electronics company that produces a wide range of batteries, including CR123A batteries known for their reliability and performance.

2. Duracell:

Duracell, a widely recognized battery manufacturer, also produces CR123A batteries that are trusted for their quality and long-lasting power.

3. Energizer:

Energizer is another prominent battery brand that offers CR123A batteries known for their durability and consistent performance.

4. SureFire:

SureFire, a company specializing in high-performance illumination tools and equipment, also manufactures CR123A batteries tailored for their flashlight products and other devices.

5. Streamlight:

Streamlight is known for producing high-quality flashlights and lighting products and offers CR123A batteries suitable for their range of devices.

6. Tenergy:

Tenergy is a manufacturer of rechargeable batteries that produces rechargeable CR123A batteries, providing environmentally friendly alternatives for certain applications.

These manufacturers are known for their quality products and have established a reputation for producing reliable CR123A batteries for use in various devices such as flashlights, cameras, medical devices, and more. When purchasing CR123A batteries, it's essential to choose reputable brands to ensure performance, safety, and compatibility with your devices.