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Battery

CR2477

3V lithium coin cell

DL2477N is a pack label for CR2477 — same battery, different name on the package.

Chemistry
lithium
Voltage
3 V
Diameter
24.5 mm
Thickness
7.7 mm
Used by
2 devices

Common uses: High-capacity coin applications · Sensors

Common questions

What is a CR2477 battery?
CR2477 is a 3-volt lithium coin cell about 24.5 mm across and 7.7 mm thick — a high-capacity size. RuuviTag (and Pro’s CR2477T) and Govee H5074 on this site each take one CR2477. Same diameter class as CR2450 / CR2430 but much thicker — see CR2450 vs CR2430 vs CR2477. Not interchangeable with CR2450 or CR2032.
What do the letters in CR2477 mean?
Under the IEC naming system, C is the assigned code for lithium–manganese dioxide — not taken from the spelling of those chemicals — and R means round (coin or button). The numbers encode size. Same diameter with a different first letter is a different battery. Full guide: CR vs LR vs SR.
What is CR2477 also called?
CR2477 pack labels and aliases on this site include CR2477N, DL2477, ECR2477, KCR2477, CR2477T, ECR2477N, DL2477N. These are names for the same battery entity — not chemistry substitutes.
Is CR2477 interchangeable with similar codes?
Related codes are not automatic equivalents. See CR2450 vs CR2430 vs CR2477 — match the code your device names.
What devices use a CR2477?
Examples on this site: Ruuvi RuuviTag; Govee H5074. Always confirm on the device page.

Other names

Genuine aliases and pack labels for this battery — not substitutes of a different chemistry.

CR2477N · DL2477 · ECR2477 · KCR2477 · CR2477T · ECR2477N · DL2477N

Related codes

Same battery / other names

CR2477KCR2477

Also sold as

Brand or pack name for the same battery.

CR2477CR2477T

Also sold as

Brand or pack name for the same battery.

CR2477DL2477N

Also sold as

Brand or pack name for the same battery.

CR2477ECR2477N

Also sold as

Brand or pack name for the same battery.

Commonly confused with

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)

Rechargeables are not equivalents

Rechargeable coin cells (LIR, ML, VL, CTL and similar) are not drop-in replacements for disposable CR cells — voltage and charging requirements differ. Same size does not mean the same battery.

Size family

Edge thickness in the 24.5 mm family — thicker bar means thicker cell. Not to scale. Highlighted cell is this page.

CR2430
3 mm
CR2450
5 mm
CR2477
7.7 mm

Device-specific caveats

From manufacturer-backed notes on devices that use CR2477 — not generic advice.

  • Keep coin cells away from children.

Devices using CR2477

2
All (2)Smart home sensors (1)Weather meters (1)

Used in

Smart home sensors1 deviceWeather meters1 device

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Testers & chargers

Optional tools that fit this cell type — only where the chemistry allows. Separate from the battery answer.

Amazon links may earn us a commission. They do not change the battery answer.

Buy links are optional and separate from the battery answer.

Need one?

Need a CR2477?

Search Amazon for packs of this battery code.

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

Notes

3V lithium coin 24.5×7.7 mm (high capacity). Not a CR2450 or CR2032 drop-in.