CR2032 3V lithium coin cell battery packs, commonly used as CMOS batteries in computers, car key fobs, and small electronics.
Type: 3V lithium button/coin cell battery (CR2032)Common Uses:
Motherboard CMOS memory backup, car remotes, digital watches, calculators, and medical thermometers.
Specifications: 20mm diameter and 3.2mm thicknessIf you'd like, I can:Tell you how to check if a coin cell battery is dead using a multimeter Help you find local electronics or computer accessory.