Battery
CR2032
3V lithium coin cell
CR2032 is a 3-volt lithium coin cell — about 20 mm across and 3.2 mm thick. Same diameter as CR2025 and CR2016, but thicker; do not swap by size alone. See CR2032 vs CR2025 if you are choosing between the two.

CR2032 Diagram
Other names
Related codes
Same battery / other names
Commonly confused with
Not a substitute
Same ~20 mm diameter and 3V lithium chemistry; CR2050 is much thicker (≈5.0 mm vs ≈3.2 mm) — not interchangeable
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
Device-specific caveats
- Avoid bitterant coatings per Wahoo
- Do not recharge CR2032.
- Keep coin cells away from children (ingestion hazard).
- Wahoo recommends name-brand CR2032 without bitter coating for optimal performance.
- Wahoo recommends Panasonic or other name-brand CR2032 without bitter/child-deterrent coating — coated cells can reduce performance.
Devices using CR2032
- Apple AirTag
- Garmin HRM-Pro Plus
- Garmin HRM-Dual
- Texas Instruments TI-36X Pro
- Texas Instruments TI-34 MultiView
- HP 12C
- LiftMaster 893LM
- Hunter Fan remote (CR2032)
- Bose Smart Soundbar Remote
- Bose TV Speaker Remote
- Samsung Galaxy SmartTag
- Samsung Galaxy SmartTag+
- Samsung Galaxy SmartTag2
- Tile Pro (2018–2024 replaceable)
- HP 17bii+
- Garmin Cadence Sensor 2
- Garmin Speed Sensor 2
- Chipolo ONE
- Chipolo ONE Spot
- HP 10bII+
- HP 12C Platinum
- Wahoo TICKR
- Wahoo TICKR X
- Wahoo RPM Cadence
- Wahoo RPM Speed
- Texas Instruments TI-30XS MultiView
- Garmin GSC 10
- Texas Instruments TI-60X
- Texas Instruments TI-68
- Wahoo TRACKR Speed
- Kestrel 1000
- Kestrel 2000
- Kestrel 2500
- Kestrel 3000
- Kestrel 3500
- Kestrel DROP D3
- Kestrel DROP D2
- Withings Go
- Ring Alarm Contact Sensor (2nd Gen)
- Ring Alarm Panic Button (2nd Gen)
- LiftMaster 890MAX
- LiftMaster 893MAX
- LiftMaster 891LM
- Chamberlain KLIK1U
- Genie G3T-R
- Genie G1T-BX
- Apple Remote (aluminum)
- Chamberlain KLIK3U
- Motionics BluePSI Bluetooth Pressure Sensor
Used in
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Testers & chargers
Optional tools that fit this cell type — only where the chemistry allows. Separate from the battery answer.
- Coin cell / button cell battery tester
Quick check of CR / LR / SR button and coin cells before fitting
- ZTS Mini-MBT Multi-Battery Tester
More informative state-of-charge style checks across common formats
- Fluke 101 Digital Multimeter
Accurate open-circuit voltage and basic electrical checks
- Coin / button cell tester
Quick check for CR / LR / SR coin cells
Need one?
Notes
Size is 20 × 3.2 mm. BR2032 looks similar but is a different lithium type — check the device.