Match My Battery

Lithium coin

CR2450 battery replacement and equivalents

CR2450 is a 3 V lithium manganese dioxide coin battery measuring 24.5 × 5 mm. Match the complete specification before treating another marking as a replacement.

DL2450ECR2450
Nominal voltage
3 V
Dimensions
24.5 × 5 mm
Chemistry
Lithium manganese dioxide

CR2450 specifications

Canonical codeCR2450
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.

BR2450 Lithium BR 3 V 24.5 × 5 mm

Reviewed comparisons

CR2450 vs BR2450Same fit · different chemistryCR2450 vs CR2430Same 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.