Side-by-Side Comparison
Button Cells
CR1620 vs. SR626SW / 377
Comparing 2 standards across 4 specifications. 4 key differences identified.
Comparing:
CR1620
SR626SW / 377
A CR1620 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 16.0mm in diameter and 2.0mm in thickness. Like the thinner CR1616, it's a common choice for automotive key fobs and other compact keyless-entry remotes.
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
|
16.00 mm | 6.80 mm |
|
Height
|
2.00 mm | 2.60 mm |
|
Nominal Operating Voltage
|
3.00 V | 1.55 V |
|
Chemistry
|
Lithium Manganese Dioxide | Silver Oxide |