CR2032 Lithium Batteries, 3 V

Energizer® Button/Coin Battery, Lithium-Manganese Dioxide Chemical System, 3 VDC Nominal, 235 mAh Nominal, 2032 Battery, 2 V Discharge Cut-Off, 8 years Shelf Life, For Use With: Heart-Rate Monitors, Keyless Entry, Glucose Monitors, Toys and Games, 0.787 in Dia x 0.126 in D Dimensions