PlainBattery — Battery Cross-Reference Guide

Cylindrical Batteries reference

AA

Battery equivalent chart, replacements, and specs

Cylindrical Batteries1.5VAlkaline14.5×50.5 mmVerified Aug 25, 2026

AA aliases and equivalent names

Common search labels and closely related markings include LR6, 15A, MIGNON. Packaging conventions vary, so confirm the compatibility grade, voltage, chemistry, and dimensions shown below before replacing the battery.

Voltage

1.5 V

Chemistry

Alkaline

Capacity

2000–3000 mAh

Size

14.5×50.5 mm

Size

AA14.5 × 50.5 mm

Exact equivalents

Exact
  • LR6 — IEC alkaline label

Do not use

Not Compatible
  • 14500 — Lithium-ion rechargeable — 3.7V, not a direct replacement
  • NiMH AA — Rechargeable 1.2V nominal
  • AAA — AAA is smaller — will not fit AA holders

Technical data

Specifications

AA specifications. Capacity depends on load, temperature and cutoff voltage; see the primary sources for test conditions.
SpecificationValue
IEC / Common CodeAA
ChemistryAlkaline
Nominal Voltage1.5 V
Capacity2000–3000 mAh
Cutoff Voltage~0.9 V
Dimensions (D × H)14.5 × 50.5 mm

Typical applications

  • Flashlights
  • Remotes
  • Toys
  • Wall clocks
  • Wireless keyboards

Applications

Replacement Compatibility

AAANot Compatible

AAA is smaller — will not fit AA holders

Frequently Asked Questions

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. Energizer E91 / IEC LR6 AA Product Datasheet — Energizer Brands, E91NA1018. AA dimensions, chemistry, voltage, shelf life and load-dependent capacity.

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

Selection notes

For high-drain devices (cameras, strobes), consider NiMH rechargeables or lithium AA (1.5V constant-voltage types).

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