CR123 vs CR123a: Which Battery is the Best for Your Device?

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If you’re in the market for a new battery for your device, you may have come across the CR123 and CR123a batteries. While they may seem similar, they actually have a few key differences that can make a significant impact on your device’s performance. So, which one is the best for your device? In this article, we’ll take a closer look at the CR123 vs CR123a batteries and explore their pros and cons.

We’ll also take a deep dive into their technical specifications, including their voltage and capacity ratings, to help you make an informed decision. So, whether you’re a professional photographer looking for a reliable power source for your camera or a homeowner looking to power your home security system, read on to find out which battery is the best fit for your needs.

Are the CR123 and CR123a batteries interchangeable?

Yes, CR123 and CR123a batteries are interchangeable in most devices. They have the same voltage and size, so you can use either one without any issues. However, it’s always a good idea to check the device’s manual or specifications to ensure compatibility.

Next let’s discuss what the “CR”, “123” and the “a” stand for.

CR123 and CR123a Name Meaning

The CR123 and CR123a are both logically named. What does cr mean in batteries? The C stands for Lithium and R for round. The 123 is one two-thirds. So any 123 battery is 1 2/3 of an A cell battery. Some brands will choose to put an a/A on the end to represent the A cell.

Name variations

The CR123 and the CR123a can also be called 123, 123a, SF123 DL123, and DL123a. They are all 16.5mm in diameter and 34mm in length. They are lithium batteries and have 3 volts.

So what’s the difference between CR123 and CR123a battery?

In actual fact, in the case of these batteries, there is no difference. If you search for 123 lithium batteries, you will often find a selection of CR123s or DL 123As. For this particular sized battery, the ‘a’ makes no difference. For this reason, each of the batteries, and more specifically the CR123 and the CR123a are 100% interchangeable.

So, why all the names?

Basically, it’s down to the preference of the brand. Sometimes instead of the CR, a brand will use letters that are associated with their name, like DL is the Duracell brand.

CR123 vs CR123a

Which should you buy?

There are probably three things you want to consider when looking at CR123 and CR123a batteries. First, look at the mAh. The higher the mAh the longer your battery should last. Then you might want to take a look at the shelf life. Sometimes you buy a pack of batteries and those not used will sit in a cupboard for a few years. Finally, it may come down to the price.

The Chart below has some of the popular brands of CR123 and CR123a batteries. We have placed them in order of price from highest to lowest.

Table could not be displayed.

While Duracell might be the leading brand, it would appear that its product might not be the best option. There are many others with a higher mAh, and cheaper. The shelf life could be longer than the warranty, but Duracell doesn’t appear to be all that confident.

As you can tell, there is no correlation between the CR123a and the CR123 with the price or function. They can all be used in the same appliances or devices. If you are struggling to make a decision, choose one that has a higher mAh first.

Tips for storing and handling batteries

To ensure that your batteries last as long as possible, it’s important to store and handle them properly. Here are a few tips to keep in mind:

Store your batteries in a cool, dry place away from direct sunlight.
Avoid exposing your batteries to extreme temperatures or humidity.
Always handle your batteries with care, and avoid dropping them or exposing them to impact.
Don’t attempt to recharge non-rechargeable batteries, as this can be dangerous and can damage the battery.

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