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Household

A23 battery replacement and equivalents

A23 is a 12 V alkaline manganese dioxide cylindrical battery measuring 10.3 × 28.5 mm. Match the complete specification before treating another marking as a replacement.

8LR93223AMN21V23GA
Nominal voltage
12 V
Dimensions
10.3 × 28.5 mm
Chemistry
Alkaline manganese dioxide

A23 specifications

Canonical codeA23
Formcylindrical
RechargeableNo
Drain markingNot specified

Typical applications

  • Household electronics
  • lights
  • remotes
  • portable devices

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.

Technical sources

  1. International Electrotechnical Commission — IEC 60086-1:2026 — Primary batteries, general requirements

    Primary-battery nomenclature, form, fit, function, terminal and electrochemical-system framework.

  2. Energizer — Battery Replacement Guide

    Cross-reference codes and manufacturer guidance to replace the same size and type together.

  3. Duracell — Battery Cross Reference Chart

    Independent manufacturer cross-reference families and corresponding product numbers.

  4. Duracell — Battery chemistry technical bulletins

    Alkaline, lithium-manganese-dioxide, zinc-air and silver-oxide chemistry behavior.

  5. Energizer — A23 miniature alkaline datasheet

    Miniature multi-cell alkaline dimensions, voltage and pulse-use context.