Cylindrical Batteries reference
AAA
Battery equivalent chart, replacements, and specs
AAA aliases and equivalent names
Common search labels and closely related markings include LR03, 24A. 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
1000–1200 mAh
Size
10.5×44.5 mm
AAA10.5 × 44.5 mm
Exact equivalents
Exact- LR03 — Same size and chemistry class
Do not use
Not Compatible- 10440 — Li-ion rechargeable — 3.7V
Technical data
Specifications
| Specification | Value |
|---|---|
| IEC / Common Code | AAA |
| Chemistry | Alkaline |
| Nominal Voltage | 1.5 V |
| Capacity | 1000–1200 mAh |
| Cutoff Voltage | ~0.9 V |
| Dimensions (D × H) | 10.5 × 44.5 mm |
Typical applications
- TV remotes
- Small flashlights
- Computer mice
- Headlamps
Applications
Side-by-side comparisons
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.
- Energizer E92 / IEC LR03 AAA Product Datasheet — Energizer Brands, EBC-1103-M. AAA dimensions, chemistry, voltage, shelf life and application discharge tests.
Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.
Selection notes
Keep a mixed pack of AA and AAA — most households need both sizes regularly.
Last verified Aug 25, 2026. Always confirm voltage, chemistry, and dimensions with the device manufacturer before replacing any battery.