CR2016

The CR2032 is a 3V lithium coin cell from Panasonic, built for motherboards, key fobs, fitness trackers, and medical devices. It is the most common 3V coin cell, delivering stable voltage and a long shelf life in a leak resistant lithium design. Measuring 20 x 3.2 mm, it drops straight into any device that takes this size. Specs include 3V, lithium chemistry, and a 20 x 3.2 mm form factor.

The 357 is a 1.55V silver oxide coin cell from Energizer, built for watches, calculators, glucose meters, and small medical devices. It delivers a steady, flat voltage curve and a long shelf life, which makes it a favorite for precision electronics. Measuring 11.6 x 5.4 mm, it drops straight into any device that takes this size. Specs include 1.55V, silver oxide chemistry, and an 11.6 x 5.4 mm form factor.