Side-by-Side Comparison
Button Cells
CR2450 vs. SR626SW / 377
Comparing 2 standards across 5 specifications. 5 key differences identified.
Comparing:
CR2450
SR626SW / 377
A CR2450 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 24.5mm in diameter and 5.0mm in thickness, with a nominal capacity of about 610 mAh -- among the largest standard coin cells. It's commonly used in larger remote controls, TPMS sensors, and medical alert devices needing extended runtime.
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
5 Parameters| Parameter / Spec | ||
|---|---|---|
|
Diameter
|
24.50 mm | 6.80 mm |
|
Height
|
5.00 mm | 2.60 mm |
|
Nominal Operating Voltage
|
3.00 V | 1.55 V |
|
Chemistry
|
Lithium Manganese Dioxide | Silver Oxide |
|
Nominal Capacity
|
610 mAh | — |