PlainBattery — Battery Cross-Reference Guide

Cylindrical Batteries reference

14500

Battery equivalent chart, replacements, and specs

Cylindrical Batteries3.7VLiIon14×50 mmVerified Aug 25, 2026

14500 aliases and equivalent names

Common search labels and closely related markings include AA-LIION. Packaging conventions vary, so confirm the compatibility grade, voltage, chemistry, and dimensions shown below before replacing the battery.

Voltage

3.7 V

Chemistry

LiIon

Capacity

600–900 mAh

Size

14×50 mm

Size

1450014 × 50 mm

Safety: 14500 is 3.7V lithium-ion — never install in devices designed only for 1.5V alkaline AA without confirming electronics tolerance.

Do not use

Not Compatible
  • AA Li-ion — Same rough size as AA — different voltage
  • 10440 — AAA-size Li-ion — smaller
  • AA — AA alkaline is 1.5V; 14500 is ~3.7V — can destroy 1.5V devices

Technical data

Specifications

14500 specifications. Capacity depends on load, temperature and cutoff voltage; see the primary sources for test conditions.
SpecificationValue
IEC / Common Code14500
ChemistryLiIon
Nominal Voltage3.7 V
Capacity600–900 mAh
Cutoff Voltage~2.5 V
Dimensions (D × H)14 × 50 mm

Typical applications

  • LED flashlights
  • DIY projects
  • High-drain AA-sized lights rated for Li-ion

Applications

Replacement Compatibility

AANot Compatible

AA alkaline is 1.5V; 14500 is ~3.7V — can destroy 1.5V devices

Frequently Asked Questions

Is 14500 the same as AA?

Similar size, not the same battery. Voltage differs (3.7V vs 1.5V).

Should I always trust cross-reference charts?

Confirm replacements with your device manual — especially for lithium vs alkaline chemistries.

Related Batteries

Review record and primary sources

Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: model and alias mapping, nominal voltage and chemistry, physical dimensions, capacity range and replacement warnings.

  1. BMZ 14500 7EM1 Cell Datasheet — BMZ Group. Representative protected-product design input for 14500 lithium-ion voltage, capacity and dimensions.

Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.

Selection notes

Buy protected cells from reputable brands. If the light says alkaline/NiMH only, do not use 14500.

Last verified Aug 25, 2026. Always confirm voltage, chemistry, and dimensions with the device manufacturer before replacing any battery.