Side-by-Side Comparison
Button Cells
CR2477 vs. SR626SW / 377
Comparing 2 standards across 4 specifications. 4 key differences identified.
Comparing:
CR2477
SR626SW / 377
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.
An SR626SW (also sold as 377) is a 1.55V Silver Oxide button cell measuring approximately 6.8mm in diameter and 2.6mm in thickness. It's one of the most common watch battery sizes, prized for the flat, stable discharge voltage silver oxide chemistry provides over the cell's life.
Specification Comparison Table
4 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
24.50 mm | 6.80 mm |
|
Height
|
7.70 mm | 2.60 mm |
|
Nominal Operating Voltage
|
3.00 V | 1.55 V |
|
Chemistry
|
Lithium Manganese Dioxide | Silver Oxide |