cr2 vs cr123:Which battery do you prefer?

Today, it appears like practically everything needs a battery to function. When it comes to more specialized equipment, however, the standard AA  and AAA batteries are insufficient. And we're stumped as to which batteries to utilize in our gear.

When we see battery types like the CR2  or the CR123, we know it's for tactical gear and other specialist items. But how should these batteries be utilized and what is the difference between them?

The prefix CR is used by the International Electrotechnical Commission (IEC) to show that the battery uses lithium chemistry, specifically LiMnO2 (Lithium-Ion Manganese Oxide).

The C denotes Lithium, and R means the batteries are round. The numbers that follow describe the size of the battery. 123A stands for one battery that’s two-thirds the size of a standard A battery. Some manufacturers simply omit the A at the end. 

The CR2 battery is a compact battery that is about half the size of a typical AA battery. It's commonly found in cameras and photographic equipment. Its compact profile, on the other hand, makes it easy to fit into smaller equipment.

The battery's entire length is 27 mm, and its diameter is 15.6 mm. This battery will outlive other options in terms of charge due to its low discharge. The CR123 will, however, have a longer charge life.

The CR123 is the larger of the two alternatives, with much greater power than the CR2. The CR123 is nearly 34% the length of a typical AA battery but slightly wider, measuring 35.4 mm long with a diameter of 17 mm.

Despite its smaller size than the CR2, the CR123 produces much more power and has a longer charge life than the CR2.

1. They are 3-volt.

The first thing that these two batteries have in common is that they are both 3-volt batteries. A 3-volt battery must be replaced with another 3-volt battery. If you don't, higher-voltage batteries can cause serious damage to the gadget you're using them in.

2. They are lithium batteries.

The second similarity between these two is that they are both formed of lithium. Lithium is an extremely light metal with the highest energy density of any battery currently available.

3. They are non-rechargeable.

Thirdly, they share the same technology and are not rechargeable. These batteries have a long run time as they have a lower discharge rate.

These, on average, will lose around 5% of their charge each month. In turn, this helps to provide them with a longer run time compared to comparably sized batteries.

1. Size & Dimensions

The CR123 battery is 34.5mm long and 17mm wide, whereas the CR2 battery is 27mm long and 15.6mm wide. As a result, replacing a CR2 battery with a CR123 may be impossible.

2. Capacity

Between CR2 and CR123, there is a significant capacity variation. Both products' capacity is measured in milliamperes. CR2 has a capacity of 600-900mAH, whereas CR123 has a capacity of 700-1700mAH.

As a result, CR2 would provide power for a shorter period of time than CR123. Their capacity has no bearing on their effectiveness. Instead, it has a lot to do with how long these batteries can last before they need to be recharged.

Many individuals are perplexed and believe that CR2 and CR123 batteries are interchangeable. Both are common in handheld devices like flashlights, camera flashlights, and gaming console controllers.

Both of these batteries have a lot of power and may discharge it for a long time. However, you should be aware that, although being 3-volt batteries, their sizes fluctuate. It's possible that you won't be able to replace a CR2 with a CR123.

Many individuals believe a CR123 battery is superior to a CR2. They say this because this battery is not only somewhat larger in size, but it also has more energy in it. The CR123 battery has 60% greater power than the CR2 battery on average.

The CR123 is also superior to the CR2 due to its significantly higher current draw. In other words, it will give the device extra juice. If your flashlight uses CR123 batteries, for example, the light it emits will be much brighter.

If the device requires smaller batteries, you should use CR2 batteries.

Military, industrial, medical, and consumer applications all use the CR2 battery. The CR2 battery is utilized in weapons lights, optics, laser rangefinders, laser designators, and communications devices in military settings. Alarm batteries and power for various devices are among the medical applications of the CR2 battery. Lights, alarms, cameras, and memory backup applications are examples of industrial and consumer applications.

Known for being cold-resistant, CR123 lithium batteries are often used for tactical flashlights, pocket flashlights, LED headlamps and lanterns to name a few. Because of the use of lightweight materials, the Panasonic CYLINDRICAL LITHIUM CR123 batteries are perfect for small cameras as well as portable lighting systems. The batteries can also be used in safety equipment, security sensors, and smoke detectors.

Batteries are a form of expendable that can be used right away. You will always acquire the correct sort of battery if you know the size your device requires. The issue arises when it comes to the type of equipment you want or desire.

What you choose will be influenced by the power output, the device's footprint and storage, and the storage or type of battery you'll need to use. It's not always about how much power it produces; it's about why you need that power and what your device's requirements are.