CR123 vs CR123A: Which one to Pick?

For one reason or another, CR123 and CR123A batteries are both popular. Despite their low price, widespread availability, and usefulness, they are very common. Yes, both batteries have four prongs that stick out the top to allow them to be inserted into devices safely. These two common "3rd Edition" batteries differ in several ways, which you might not realize. Taking a look at some of their differences will help us understand how they are different.

What is a CR123 Battery?

Lithium-based cylindrical batteries, such as the CR123A and 123A batteries, are widely used in various electronic devices. Small in size, cylindrical in shape, and rated at three volts, it has a compact design. The CR designation refers to the cylinder's shape, while the 123 designation indicates its dimensions, which are 12mm in diameter and 34.5mm in length. An easy installation and connection within devices is facilitated by positive and negative terminals at each end of these batteries.

As compared to other types of batteries, CR123 batteries feature lithium chemistry. In terms of their size, lithium batteries are capable of storing a substantial amount of energy. Because CR123 batteries have such a high energy density, most electronic devices can operate at 3 volts. Furthermore, lithium batteries are well suited for use as backup resources for devices that don't get used very often due to their long shelf life and low self-discharge rate. Many devices requiring long-lasting power typically use CR123 batteries, including cameras, flashlights, medical devices, and security systems.

What is a CR123A Battery?

In addition to its compact size and high energy density, the CR123A battery is also known as the CR123 or 123A battery. There are a variety of electronic devices that use CR123A batteries, which have a diameter of approximately 17mm and a length of about 34.5mm. An easy installation and connection within devices are made possible by the positive and negative terminals at both ends.

There are several advantages to using CR123A batteries over other types of batteries that use lithium chemistry. Due to their high energy density, lithium batteries are capable of storing large amounts of energy. They also maintain a stable voltage output of 3 volts as long as they are used, which is another benefit of CR123A batteries. The low self-discharge rate and long shelf life of lithium batteries make them ideal as backup power sources for devices that do not receive frequent use.

CR123 vs CR123A: Differences

CR123 Applications

Cameras and Photography Equipment: Batteries such as CR123 are commonly used for powering digital cameras, especially for outdoor photography and professional cameras. In addition to powering the LCD display, these batteries provide power for the shutter, autofocus system, and other electronic components of the camera. In addition, cameras and external lighting equipment often use CR123 batteries because they have a high output and are reliable.

Flashlights and Illumination Devices: For flashlights and illumination devices, including LED torches, tactical flashlights, and emergency lights, CR123 batteries are popular power sources. In emergency situations, tactical situations, and outdoor activities, they provide bright and long-lasting illumination due to their compact size and high energy density.

Security Systems and Alarms: A wireless sensor, motion detector, or alarm panel in a security system uses batteries like CR123. Home, business, and commercial properties can rely on these batteries to detect intruders and unauthorized entry reliably.

Medical Devices: There are a variety of medical devices which use CR123 batteries, including glucose meters, blood pressure monitors, and pulse oximeters. For the accurate readings and reliable operation of medical devices, these batteries power the electronic circuits and display screens.

Laser Pointers and Optical Instruments: There is a wide range of optical instruments which use CR123 batteries, including laser pointers, rangefinders and surveying equipment. They provide precise and reliable performance for professional and recreational purposes because of their high power output and stable voltage.

Communication Devices: Portable transceivers and two-way radios are powered by CR123 batteries. As a result of these batteries, signals can be transmitted and received over long distances in a variety of conditions and environments, ensuring reliable communication.

Outdoor and Recreational Equipment: The CR123 battery is also used in portable navigation systems, GPS units, electronic compasses, electronic golf clubs, and other outdoor equipment. Hiking, camping, hunting, and other outdoor activities can benefit from their compact size, high energy output, and reliability.

Automotive Accessories: A CR123 battery can sometimes be found in car alarm key fobs, keyless entry remotes, and tire pressure monitoring systems. They provide convenience and security features to drivers by providing power to small electronic components in vehicles due to their compact size and high energy density.

CR123A Battery Applications

Photography Equipment: Photographic equipment, such as digital cameras, flash units, and lighting, is powered by CR123A batteries. Whether you're taking pictures indoors or outdoors, they provide the energy the camera needs to operate its electronic components.

Flashlights and Tactical Lights: A CR123A battery delivers a high energy density, making it ideal for flashlights and tactical lights that offer bright, long-lasting illumination. The reliability of these batteries and their ability to provide intense light output in critical situations have made them a favorite among law enforcement officers, military personnel, and outdoor enthusiasts alike.

Security Systems: These batteries power motion detectors, wireless sensors, and surveillance cameras, which are all key components of security systems. Intruders and unauthorized access cannot enter homes, businesses, or public spaces due to their dependable performance.

Medical Devices: There are various medical devices that use CR123A batteries, including glucose meters, blood pressure monitors, and pulse oximeters. Medical devices use these batteries to generate accurate readings and provide reliable patient monitoring in a clinical setting or at home.

Outdoor Recreation: Portable navigation systems, GPS devices, rangefinders, and GPS devices typically use CR123A batteries. During outdoor activities such as hiking, camping, hunting, and other outdoor activities where reliability is essential, their compact size and long shelf life make them an ideal power source.

Communication Devices: There are several types of batteries that are used in two-way radios, walkie-talkies, and emergency beacons, among others. Signals are transmitted and received over long distances reliably with their high energy output, which is critical for communication in remote areas and during emergencies.

Automotive Accessories: Car alarm key fobs, keyless entry remotes, tire pressure monitoring systems, and tire pressure systems use CR123A batteries. In addition to providing power to electronic components, these batteries enhance the convenience and security of vehicles.

Home Electronics: Home electronics such as wireless doorbell systems, electronic locks, and remote controls utilize CR123A batteries. They provide reliable and long-lasting power to small devices due to their compact design and stable voltage output.

Preparedness and Survival Kits: The long shelf life and reliable performance of CR123A batteries make them an ideal choice for survival kits and emergency preparedness supplies. An emergency radio, a signaling device, or a portable charger all run on batteries, ensuring emergency preparedness.

Differences

A lithium cylindrical battery, commonly referred to as a CR123 or CR123A, is a CR123 or CR123A when used interchangeably. In spite of this, they differ in a few subtle ways:

Designation: It is primarily the terminology that differs. Battery size and shape are typically defined by "CR123," while battery chemistry and characteristics are considered by "CR123A."

Chemistry: Using lithium chemistry, these batteries produce a stable voltage of 3 volts and provide high energy density. Battery manufacturers may not always define or standardize the differences in chemistry or manufacturing processes of their batteries, so "A" in CR123A may indicate improvements or variations.

Compatibility: Most devices that require CR123 batteries can readily accept CR123 and CR123A batteries interchangeably. It is advisable to consult the manufacturer's recommendations or specs of the device to ensure compatibility and optimal performance.

Availability: It is also possible to find CR123 batteries without the "A" designation, simply labeled "CR123". However, the specifications and performance characteristics of both types of batteries are similar despite the differences in labeling.

Final Thoughts

As a result of this comparison, it can be concluded that the practical differences between CR123 and CR123A batteries are minimal. While some of the terminology may differ, both types of batteries are typically lithium-ion batteries, feature a stable 3 volt output, and are compatible with many electronic devices. 

These batteries can be used interchangeably, whether they are labeled as CR123s or CR123As. CR123 and CR123A batteries both offer reliable power for various devices and applications, so choosing between them often comes down to personal preference or availability. The choice between CR123 and CR123A batteries is ultimately up to the individual user depending on their needs and compatible options. I hope all your confusion regarding CR123 vs CR123A Battery got cleared. If you still have any questions, then let me know in the comment section. Thank You!