Tenergy CR123A Battery

8 Best CR123A Battery Reviews and Guide


CR123A battery is a type of lithium primary battery that is commonly used in a variety of devices, including cameras, flashlights, and other electronics. These batteries have a unique cylindrical shape and a voltage of 3 volts, which makes them a popular choice for applications that require high energy density and long shelf life.

Here’s everything you need to know about CR123A batteries:


CR123A batteries are made using lithium chemistry, which means they have a higher energy density and a longer lifespan than many other battery types. The lithium in these batteries is highly reactive and provides a high voltage output, which is why they are commonly used in high-performance electronics.

Shape and Size:

CR123A batteries have a cylindrical shape and measure approximately 34.5mm in length and 17mm in diameter. They are slightly larger than AA batteries but smaller than C or D batteries, making them a popular choice for smaller devices.

Voltage and Capacity:

CR123A batteries have a voltage of 3 volts, which is higher than many other battery types. This high voltage output makes them well-suited for applications that require a high level of power output. They also have a high capacity, which means they can store a lot of energy in a small space.


CR123A batteries have several advantages over other battery types. One of the biggest advantages is their long shelf life, which can be up to 10 years. They also have a high energy density and can provide a lot of power output in a small package. Additionally, they are lightweight and compact, making them easy to carry around in a bag or pocket.


One of the main disadvantages of CR123A batteries is their cost. They are more expensive than many other battery types, which can make them less cost-effective for some applications. Additionally, they are not as widely available as other battery types, which can make them difficult to find in some areas.


CR123A batteries are commonly used in a variety of applications, including cameras, flashlights, medical equipment, and other electronics. They are also used in some home security systems and other applications that require a reliable power source.

In summary, CR123A batteries are a popular choice for applications that require a high level of power output and long shelf life. They are lightweight and compact, making them easy to carry around, but can be more expensive than other battery types. If you need a reliable and long-lasting power source for your electronic devices, CR123A batteries may be a good choice.

How long does a CR123A Battery Last?

The lifespan of a CR123A battery can vary depending on several factors, including the manufacturer, storage conditions, and the device it’s being used in. However, on average, a CR123A battery can last between 2 to 10 years, depending on the usage and storage conditions.

In general, these batteries have a longer shelf life than other battery types, such as alkaline batteries, because they use lithium chemistry. Lithium batteries are more stable and have a lower self-discharge rate, which means they can retain their charge for a longer period of time.

When used in a device, the lifespan of a CR123A battery will depend on factors such as the device’s power requirements, usage frequency, and the temperature at which it’s being used. For example, a flashlight that uses a high-powered LED will drain the battery faster than a flashlight with a lower-powered bulb.

It’s important to note that as a CR123A battery nears the end of its lifespan, its voltage output may begin to drop, causing it to no longer provide sufficient power to the device. It’s recommended to replace the battery once this occurs to avoid damaging the device or experiencing reduced performance.

Overall, the lifespan of a CR123A battery can vary but, on average, can last several years, making them a reliable power source for a variety of electronic devices.

If you’re planning to get a set of cr123a batteries soon, make sure you take the following factors into account first.

The number of batteries:

As you may have already noticed, sets of 2, 4, 6, or even 12 cr123a batteries are frequently offered. You should decide how many batteries you need in the set based on how many devices you have in your home. Purchase a modest pack if you don’t have many devices that require a cr123a battery.

Battery capacity:

Every type of battery has a particular battery capacity. Usually, the mAh unit is used to describe its capacity. A battery with a higher capacity will, as you might expect, last longer and provide a more dependable experience. However, choosing a single cell with a little higher capacity over a pack of multiple batteries in the same price range is not the best choice.

Shelf life: