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

CR2025 vs. CR2032

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

Comparing:
CR2025
CR2032

A CR2025 coin cell measures 20.0mm in diameter and 2.5mm in height, supplying 3.0V at ~165 mAh. While identical in diameter to the CR2032, its thinner 2.5mm profile prevents reliable contact in CR2032 battery holders.

View full CR2025 spec sheet →

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

4 Parameters
Parameter / Spec
Diameter
20.00 mm 20.00 mm
Height
2.50 mm 3.20 mm
Nominal Operating Voltage
3.00 V 3.00 V
Nominal Capacity
165 mAh 225 mAh