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Comparison

CR2450 vs CR2430 vs CR2477

Same ~24.5 mm diameter and 3V lithium chemistry — different thickness (CR2430 ≈ 3.0 mm, CR2450 ≈ 5.0 mm, CR2477 ≈ 7.7 mm). Not interchangeable.

At a glance

QuestionAnswer
Same battery?No — see chemistry and size below
Same dimensions?Same diameter; thickness differs
Same chemistry?Yes
Same voltage?3 V
Direct substitute?Only if the device documentation names that exact code

Thickness order

CR2430 ≈ 3.0 mm · CR2450 ≈ 5.0 mm · CR2477 ≈ 7.7 mm. Same face diameter class; different height and capacity. Only use the code your device names.

Examples on this site

Aqara Motion Sensor / Motion Sensor P1 name CR2450. Polar’s s3+ stride sensor names CR2430. RuuviTag and Govee H5074 name CR2477.

Do not use list

Do not swap CR2430 / CR2450 / CR2477 by diameter alone.

Do not treat a thicker cell as a “longer-life upgrade” for a thinner tray — it may not close or can stress the cover.

Do not confuse this 24 mm family with the smaller 20 mm CR2032 / CR2025 / CR2016 family.

Codes compared

LabelResolves toTypeSize
CR2450CR24503V lithium coin cell24.5 × 5 mm
CR2430CR24303V lithium coin cell24.5 × 3 mm
CR2477CR24773V lithium coin cell24.5 × 7.7 mm

Device counts: CR2450 (2) · CR2430 (1) · CR2477 (2)

How these codes relate

Same battery, pack labels, or same size with a different type — not a generic “compatible with” list.

From CR2450

CR2450CR2430

Not a substitute

Same diameter; height differs

CR2450CR2477

Not a substitute

Same diameter class (~24.5 mm); height/capacity differ (5.0 vs 7.7 mm)

From CR2430

CR2430CR2450

Not a substitute

Same diameter; height differs

CR2430CR2477

Not a substitute

Same diameter class (~24.5 mm); height/capacity differ (3.0 vs 7.7 mm)

From CR2477

CR2477CR2430

Not a substitute

Same diameter class (~24.5 mm); height/capacity differ (3.0 vs 7.7 mm)

CR2477CR2450

Not a substitute

Same diameter class (~24.5 mm); height/capacity differ (5.0 vs 7.7 mm)

Open a battery page

CR2450 →CR2430 →CR2477 →Compare any two →

Shop the code your device names — not a size twin.

Need a CR2450?

Search Amazon for packs of this battery code.

Buy on AmazonAmazon UK

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.

Need a CR2430?

Search Amazon for packs of this battery code.

Buy on AmazonAmazon UK

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.

Need a CR2477?

Search Amazon for packs of this battery code.

Buy on AmazonAmazon UK

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.