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CR2032 battery

20 × 3.2 mm · 3 V
lithium coin cell · about 225 mAh (varies by brand)

Buy CR2032 batteries

The most common key fob cell.

CR2032 coin cell
A CR2032 cell · Photo: Raimond Spekking, CC BY-SA 4.0, via Wikimedia Commons (resized)

CR2032 size, drawn to scale

CR2032+20 mmThickness (side view)CR2032 · 3.2 mmCR2025 · 2.5 mmCR2016 · 1.6 mmCR2012 · 1.2 mm
Drawn to scale by FobCells. The flat side marked + is the positive side.

CR2032 equivalents

The same size is sold as: DL2032ECR2032KCR20325004LC

CR2032 vs similar sizes

BatteryThicknessTypical capacitySwap for CR2032?
CR20323.2 mm225 mAh-
CR20121.2 mm55 mAhNo: different thickness
CR20161.6 mm90 mAhNo: different thickness
CR20252.5 mm160 mAhNo: different thickness

Key fobs that use a CR2032

VehicleYears
Mazda CX-52021–2025
Mazda CX-52020