Canonical battery record · checked 2 September 2026

CR2430

CR2430 has a 24.5 mm diameter and 3 mm nominal height. Another 3 V lithium coin cell is not automatically interchangeable.

CR2430

Answer

CR2430 is the supported canonical designation for one 24.5 × 3 mm lithium coin cell. No other family is treated as an automatic replacement.

Top profile · Ø 24.5 mm

Side profile · 3 mm high

Original proportional profiles. Scale is consistent within this diagram; screen size is not a physical ruler.

Format: Lithium coin cell
Dimensions: 24.5 × 3 mm
Voltage: 3 V nominal
Chemistry: Lithium manganese dioxide
Drain context: Low continuous drain; pulse performance is product-specific
Rechargeable?: No — primary cell; do not recharge.
Capacity context: Typical product figure near 290 mAh; verify load, cut-off and temperature in a current datasheet.
Confidence: High

Equivalence and confusion matrix

Code or familyClassificationReason

CR2430Exact equivalentThese evidence-backed markings resolve to this one canonical record and share its cited physical and electrical specification.

CR2450Not equivalentThe physical envelopes differ (24.5 × 3 mm versus 24.5 × 5 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR2320Not equivalentThe physical envelopes differ (24.5 × 3 mm versus 23 × 2 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR2032Not equivalentThe physical envelopes differ (24.5 × 3 mm versus 20 × 3.2 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR2025Not equivalentThe physical envelopes differ (24.5 × 3 mm versus 20 × 2.5 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

Supported application context

Devices whose battery compartment or manual specifies CR2430

Application context is limited to the scope stated in Energizer CR2430 Product Datasheet; it is not a device compatibility claim.

The CR2430 code fixes both diameter and height. Nearby CR codes may appear in the same device category but differ physically; verify the complete four-digit designation.

CR2430 is 24.5 × 3.0 mm. CR2450 shares its diameter but is 2.0 mm taller, making the original side profiles visibly different.

Commonly confused

CR2450 — compare all four decision fields.
CR2320 — compare all four decision fields.
CR2032 — compare all four decision fields.
CR2025 — compare all four decision fields.

What the code means

CR2430 identifies a lithium manganese-dioxide coin cell; the digits encode a nominal diameter and height class, but the cited drawing controls the actual dimensions.

Discharge and drain behaviour

This primary lithium chemistry is intended for low continuous loads with product-specific pulse capability. Capacity figures cannot be compared without matching the load, cut-off voltage and temperature.

Capacity context: Typical product figure near 290 mAh; verify load, cut-off and temperature in a current datasheet.

Substitution guidance

Treat only the listed aliases as exact. A different CR number changes the physical envelope, so do not stack, force or substitute a thinner or thicker coin cell.

Fact-level evidence

Energizer CR2430 Product Datasheet

Published by Energizer; page 1, specifications and industry-standard dimensions drawing. Checked 2 September 2026. Independently presented facts only; publisher wording, layout and diagrams are not reproduced.

Open primary source

Not a device-fit guarantee.

Confirm the exact code, chemistry and drain requirement with the device maker. Keep button and coin cells away from children and never recharge this primary cell.