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CR2 battery size compared to a 16340 and CR123A batteries

The size of a CR2 battery compared against a 16340 and CR123A battery.


Height 27 mm
Diameter 15.6 mm


Voltage 3V
Chemistry Lithium
Capacity 600 – 900mAh
Rechargeable No

Replacement Sizes

1CR2, 5046LC, CR17355, CR2, DLCR2, EL1CR2, KCR2, RLCR2

What are CR2 Batteries?

The CR2 battery is a cylindrical lithium cell classified by its 27mm x 15.6mm dimensions. They're typically used in older film cameras, shutter remotes, compact flashlights, and other small devices. Most CR2 cells are primary single-use and are not rechargeable. Learn more about CR2 batteries here.

Are there rechargeable CR2 batteries?

Yes, but currently Battery Junction does not carry any rechargeable CR2 batteries. CR2 batteries use a lithium chemistry (not li-ion) and most are single-use non-rechargeable.

Do CR2 batteries expire?

Yes, all batteries eventually expire. CR2 batteries have a range of shelf lives between 3 and 10 years, largely dependent on the battery's chemistry and storage conditions. We list the rated shelf life on all our product listings when available so you can make an informed choice when buying spares or bulk cells. For more information, check out our battery expiration guide!

Are CR2 batteries the same as CR123A batteries?

No, CR123A batteries are physically bigger than CR2 cells and have larger capacities. Do not try to try to interchange these batteries, as it can lead to overheating or other dangerous complications.

Do you offer bulk-pricing on CR2 batteries?

Yes! A large selection of our batteries can be bought in bulk, letting you take advantage of huge discounts! You can filter our selection of batteries by bulk-eligibility, fill out a wholesale request form, or directly contact a member of our sales team now via phone or email!

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