CR123A Battery Size and Voltage
CR123A = 17.0 mm diameter x 34.5 mm height, 3.0 V lithium primary, ~1500 mAh. IEC CR17345.
Open the interactive Standards & Sizes tool →Key facts
| Diameter x height | 17.0 x 34.5 mm |
|---|---|
| Voltage | 3.0 V |
| Chemistry | Lithium primary |
| Capacity | ≈ 1500 mAh |
| Typical use | Flashlights, film cameras, medical devices |
Frequently asked questions
What size is CR123A?
CR123A is 17.0 mm in diameter and 34.5 mm tall, a 3.0 V lithium primary cell.
Can a 16340 replace CR123A?
A rechargeable 16340 (16 x 34 mm, 3.7 V Li-ion) fits the same slot but has higher voltage; check device compatibility.
Related pages
CR123A Battery Size is part of Standards & Sizes on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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