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

CR2032 vs. CR2477

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

Comparing:
CR2032
CR2477

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 →

A CR2477 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 24.5mm in diameter and 7.7mm in thickness -- the largest-capacity cell in the common CR-series lithium coin cell line. Its size suits devices needing extended runtime from a single coin-shaped cell, such as larger remote controls and industrial sensors.

View full CR2477 spec sheet →

Specification Comparison Table

5 Parameters
Parameter / Spec
Diameter
20.00 mm 24.50 mm
Height
3.20 mm 7.70 mm
Nominal Operating Voltage
3.00 V 3.00 V
Nominal Capacity
225 mAh
Chemistry
Lithium Manganese Dioxide