Canonical battery record · checked 2 September 2026

CR2032

CR2032 has a 20 mm diameter and 3.2 mm nominal height. Another 3 V lithium coin cell is not automatically interchangeable.

CR2032DL2032ECR2032

Answer

CR2032, DL2032, ECR2032 are the supported exact aliases for one 20 × 3.2 mm lithium coin cell. No other family is treated as an automatic replacement.

Top profile · Ø 20 mm

Side profile · 3.2 mm high

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

Format: Lithium coin cell
Dimensions: 20 × 3.2 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 240 mAh; verify load, cut-off and temperature in a current datasheet.
Confidence: High

Equivalence and confusion matrix

Code or familyClassificationReason

CR2032 · DL2032 · ECR2032Exact equivalentThese evidence-backed markings resolve to this one canonical record and share its cited physical and electrical specification.

CR2025Not equivalentThe physical envelopes differ (20 × 3.2 mm versus 20 × 2.5 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR2016Not equivalentThe physical envelopes differ (20 × 3.2 mm versus 20 × 1.6 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR2012Not equivalentThe physical envelopes differ (20 × 3.2 mm versus 20 × 1.2 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

CR1632Not equivalentThe physical envelopes differ (20 × 3.2 mm versus 16 × 3.2 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 CR2032

Application context is limited to the scope stated in Energizer CR2032 Product Datasheet; it is not a device compatibility claim.

The CR2032 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.

CR2032 is the tallest supported CR20 cell at 3.2 mm. CR2025 and CR2016 share voltage, chemistry and diameter while failing the height check.

Commonly confused

CR2025 — compare all four decision fields.
CR2016 — compare all four decision fields.
CR2012 — compare all four decision fields.
CR1632 — compare all four decision fields.

What the code means

CR2032 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 240 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 CR2032 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.

Corroborated against Maxell Button and Coin Battery Cross-reference Table; CR2032 row in the lithium battery table.

Open primary source Open corroborating 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.