Some CR2 batteries can be recharged, while the majority cannot. For many users, the price of retail packs CR123 seems more economical as it offers greater capacity.

For example, the Duracell CR2 costs around 7$ per unit, while the same brand CR123 costs $10.

However, in general, their prices are not too different. Priceĭepending on the brand we choose, the price may differ. Plus, the weight difference is only 6 grams. The typical weights of CR2 and CR123, respectively, are 11 and 17 grams. We can find it in cameras, memory backup, military settings, communication devices, weapon lights, laser rangefinders, and more. The other type is utilized in various industries, such as military, medical, consumer applications, and household devices. CR123 batteries are currently used in home automation, illumination equipment, smoke detectors, wireless security, and industrial applications. Applicationsīoth of these models are used in many types of equipment. Lithium is one of the most reliable sources in producing batteries today as it has high power density and lasts longer. However, the former is manganese dioxide, while the latter is lithium-thionyl chloride. Both CR2 and CR123 are power lithium batteries. This feature refers to the main chemistry material contained in the battery models. Otherwise, the higher voltage power unit can damage our devices severely. When choosing batteries, the voltage should be the same. Both of the models provide an output voltage of 3.0. It’s said that CR123 can be used for 8 to 50 hours before replacing, and the other may work for 5 to 20 hours. Their lifespan can be shorter or longer depending on the frequency and time we use them. The actual capacity also leads to different usage times. As a result, even when we can fit the device using CR123 with CR2, it may operate poorly or not work as the current supplied to the device is insufficient. The CR2 has a typical capacity of 800 – 850mAH, while the CR123 is almost twice larger, from 1500 to 2000mAH. For example, 800mAH means 800mA of current can be generated through chemistry interaction per hour. In simple terms, capacity refers to the storage amounts of energy generated by a certain power unit. In other words, they’re incompatible sizes. CR123 is higher, so CR-2 cannot replace the electronic devices that work with CR123. Sometimes, we may misunderstand that they have the same diameter when glancing. In other words, the CR123 is bigger in diameter and height. The CR2 is 27mm x 15.6mm, while the other is 34.5mm x 17mm. The first thing that makes those models different is their dimensions. From there, we can choose the best for us! Dimension We’ll examine the most important aspects of these two types of batteries. For example, the capacity requirement of the device. Therefore, rather than choosing the best, let’s select the most appropriate to our conditions. They are all the top common types on the market. It’s difficult to accurately define which one is better as there are certain differences between them. However, they’re more economical as we can use them multiple times. Their drawback is that they offer a lower capacity compared to single-use ones. Moreover, there are models 1520, which are rechargeable versions for CR2 equivalents. They are even all trusted, thanks to high accessibility, flexibility, and stability. They are all non-rechargeable versions or called primary batteries, offering a stable operation with long use life. Those above options can be directly replaced with CR2. Hereafter is a list of battery equivalent and replacement options and related things that we can count on.

Because there is a flood of information outside, making us confused when deciding. The problem of finding its equivalents comes to many people. There is a higher demand for this type, so it’s sometimes out of stock. Some brand names are Energizer, Varta, Duracell, UltraFire, Panasonic, etc. It’s especially used a lot in film cameras and medical equipment.Īlso, it’s produced by many manufacturers thanks to its high demand in the market. This type of battery can be applied to various power devices, such as photographic equipment, flashlights, remotes, motion detectors, calculators, etc. We likely define it by the dimension of 27mm x 15.6mm. For easily illustrated, we can recognize it as a mini version of the D-cell battery. It is a lithium chemistry-based cylindrical battery.

Cr2 battery at walmart