Rechargeable

14500 battery replacement and equivalents

14500 is a 3.6 V lithium ion cylindrical battery measuring 14 × 50 mm. Match the complete specification before treating another marking as a replacement.

Technical content reviewed 2026-10-04

No reviewed alternate codes

Nominal voltage: 3.6 V
Dimensions: 14 × 50 mm
Chemistry: Lithium ion

14500 specifications

Canonical code14500

Formcylindrical

RechargeableYes

Drain markingNot specified

Typical applications

Rechargeable lights
battery packs
specialty electronics

Replacement decision

Resolve the original marking to this profile, then confirm nominal voltage, chemistry, dimensions, polarity and any drain or terminal suffix. Capacity alone does not establish interchangeability.

Reviewed comparisons

14500 vs AANot equivalent

Technical sources

Duracell — Battery chemistry technical bulletins
Alkaline, lithium-manganese-dioxide, zinc-air and silver-oxide chemistry behavior.

Manufacturer example: Panasonic UR14500AC dimensions

The 14500 profile’s 14 × 50 mm dimensions describe a nominal size label. Panasonic lists its cylindrical Li-ion UR14500AC at 14.3 mm diameter and 49.5 mm height with tube. Those measurements belong to that complete model; they are not a guaranteed fit for every cell sold as 14500.

Check the complete manufacturer and model marking, the actual cell dimensions including protection circuitry and button-top or flat-top terminals, and the device’s documentation. Match the required chemistry, voltage and electrical specifications as well as the physical fit. Similar size does not make a Li-ion cell compatible with a device designed for 1.5 V AA.

Manufacturer references: Panasonic UR14500AC model specifications · Panasonic cylindrical Li-ion catalog, printed page 35 (PDF page 18).