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Lithium coin

CR1225 battery replacement and equivalents

CR1225 is a 3 V lithium manganese dioxide coin battery measuring 12.5 × 2.5 mm. Match the complete specification before treating another marking as a replacement.

DL1225ECR1225
Nominal voltage
3 V
Dimensions
12.5 × 2.5 mm
Chemistry
Lithium manganese dioxide

CR1225 specifications

Canonical codeCR1225
Formcoin
RechargeableNo
Drain markingNot specified

Typical applications

  • Watches
  • remotes
  • sensors
  • memory backup

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.

Same-size batteries to review carefully

These profiles share the nominal physical envelope. They are not automatically equivalent.

BR1225 Lithium BR 3 V 12.5 × 2.5 mm

Reviewed comparisons

CR1225 vs BR1225Same fit · different chemistryCR1225 vs CR1220Same diameter · different heightCR1225 vs CR1216Same diameter · different height

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. International Electrotechnical Commission — IEC 60086-2-2:2026 — Physical and electrical specifications of lithium batteries

    Standardized primary-lithium dimensions and electrical specification context.

  3. Energizer — Lithium Coin Handbook and Application Manual

    Lithium/manganese-dioxide coin chemistry, voltage, capacity, drain and application behavior.

  4. Energizer — Battery Replacement Guide

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

  5. Energizer — CR1225 engineering datasheet

    Representative lithium-coin dimensions, voltage, construction and rating conventions.