Match My Battery

BR2330 vs CR2330 Battery Differences

BR2330 and CR2330 have the same 23 × 3 mm dimensions and 3 V nominal voltage, but they use different lithium chemistries. They fit the same nominal envelope without being exact chemistry equivalents.

Verdict
Same fit · different chemistry
Confidence
93%
Reviewed
2026-09-08
Same fit · different chemistry

BR2330 and CR2330 share dimensions but not the complete specification

The physical envelope and nominal voltage are close, but chemistry changes from Lithium carbon monofluoride to Lithium manganese dioxide.

Use only when the device maker explicitly approves both chemistry systems.

SpecificationBR2330CR2330
Dimensions23 × 3 mm23 × 3 mm
Nominal voltage3 V3 V
ChemistryLithium carbon monofluorideLithium manganese dioxide
RechargeableNoNo
Typical useLong-life memory backup, meters, low-drain electronicsWatches, remotes, sensors
View BR2330 profile View CR2330 profile

Exact aliases, physical fit and electrical compatibility

BR2330 and CR2330 have the same 23 × 3 mm dimensions and 3 V nominal voltage, but they use different lithium chemistries. They fit the same nominal envelope without being exact chemistry equivalents.

What changes when the chemistry changes

Both codes describe a 23 mm diameter, 3 mm high coin cell, so dimensions alone cannot choose between them. BR2330 uses lithium carbon monofluoride while CR2330 uses lithium manganese dioxide; their discharge and temperature behavior can differ.

Application boundary

Follow the complete code in the device specification, especially for long-life memory backup or temperature-sensitive use. Treat a BR/CR swap as conditional unless the manufacturer permits it.

Related decisions: Review the BR2330 profile Review the CR2330 profile Understand CR and BR chemistry

Why this verdict

  • The physical envelope matches.
  • Nominal voltage is close.
  • Chemistry and discharge behavior differ.

What to verify in the device

Check the original compartment label, the current manual, polarity, terminal style and whether the device explicitly permits a chemistry or rechargeable alternative.

Sources for these profiles

  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. Duracell — Battery chemistry technical bulletins

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

  4. Energizer — Lithium Coin Handbook and Application Manual

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

  5. Energizer — Battery Replacement Guide

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