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

CR2016 vs. SR626SW / 377

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

Comparing:
CR2016
SR626SW / 377

A CR2016 coin cell is a 3.0V Lithium Manganese Dioxide battery measuring 20.0mm in diameter and 1.6mm in thickness with a nominal capacity of about 90 mAh. Its slim profile suits low-profile devices like slim remotes, LED tea lights, and thin calculators, distinguishing it from the thicker CR2032 of the same diameter.

View full CR2016 spec sheet →

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.

View full SR626SW / 377 spec sheet →

Specification Comparison Table

5 Parameters
Parameter / Spec
Diameter
20.00 mm 6.80 mm
Height
1.60 mm 2.60 mm
Nominal Operating Voltage
3.00 V 1.55 V
Chemistry
Lithium Manganese Dioxide Silver Oxide
Nominal Capacity
90 mAh