# item.guide
Side-by-Side Comparison Button Cells

CR1220 vs. CR2032

Comparing 2 standards across 5 specifications. 4 key differences identified.

Comparing:
CR1220
CR2032
CR1220 →

A CR1220 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 12.5mm in diameter and 2.0mm in thickness, with a nominal capacity of about 35 mAh. Its small size makes it common in car key fobs, small LED lights, and low-power Bluetooth beacons.

View full CR1220 spec sheet →
CR2032 →

A CR2032 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 20.0mm in diameter and 3.2mm in thickness with a standard capacity of ~225 mAh. It is widely used in key fobs, motherboard CMOS, and Apple AirTags.

View full CR2032 spec sheet →

Specification Comparison Table

5 Parameters
Parameter / Spec
CR1220
CR2032
Diameter
12.50 mm 20.00 mm
Height
2.00 mm 3.20 mm
Nominal Operating Voltage
3.00 V 3.00 V
Nominal Capacity
35 mAh 225 mAh
Chemistry
Lithium Manganese Dioxide —

Other Alternatives to Compare

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