Match My Battery

BR2032 vs LIR2032: battery compatibility

A reviewed side-by-side decision based on form, fit, electrical specification and application limits.

Verdict
Same size · different voltage
Confidence
100%
Reviewed
2026-10-04
Same size · different voltage

BR2032 and LIR2032 share a nominal size label but are not electrically interchangeable

BR2032 is rated at 3 V and LIR2032 at 3.7 V (EEMB example). Matching dimensions do not make cells with materially different nominal voltages safe replacements.

Use the exact voltage and battery system specified by the device manufacturer.

SpecificationBR2032LIR2032
Dimensions20 × 3.2 mm20 × 3.2 mm
Nominal voltage3 V3.7 V (EEMB example)
ChemistryLithium carbon monofluorideLithium ion
RechargeableNoYes
Typical useLong-life memory backup, meters, low-drain electronicsRechargeable specialty electronics
View BR2032 profile View LIR2032 profile

About Confidence: this is a fixed score attached to a comparison rule in the catalog. It is not a probability of working, a measured success rate, or device approval. Read the verdict and its reasons; a high score can accompany a non-equivalence verdict.

Manufacturer example: EEMB LIR2032

EEMB lists its rechargeable LIR2032 at 3.7 V nominal and 45 mAh. This is not a universal specification for every LIR2032. Its dated specification gives 20.0 mm maximum diameter and 3.2 + 0.2 mm height; the catalog's 20 × 3.2 mm format is a nominal size clue, not a guaranteed fit.

Verify the exact cell manufacturer and model, device documentation and approved charger before use. The nominal voltage is not a charging setting. A matching size does not make this rechargeable cell a replacement for a 3 V CR2032.

Manufacturer references: EEMB LIR2032 product specifications · EEMB specification ZJQM-RD-SPC-H0339 (2019-04-19), pages 3 and 8.

Why this verdict

  • The nominal format matches; check actual manufacturer tolerances and the holder.
  • Nominal voltage differs: 3 V versus 3.7 V (EEMB example).
  • Chemistry also changes from Lithium carbon monofluoride to Lithium ion.

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. EEMB — LIR2032 rechargeable coin-cell product specifications

    Manufacturer-specific rechargeable LIR2032 nominal voltage and capacity; not a rating for every LIR2032 or device compatibility approval.

  5. EEMB — LIR2032 specification ZJQM-RD-SPC-H0339 (2019-04-19)

    EEMB model voltage and dimensional tolerance on page 3; charger/manual boundary on page 8. Dated manufacturer specification, not a universal LIR rating or a charging guide.