Energizer Watch/Electronic Batteries, 3 Volts, 2032, 2 batteries (Lithium Button Cell) for $2.49

This pair of three-volt lithium coin batteries is perfect for watches, fitness or healthcare devices, and other electronics. 20mm diameter and 3.2mm height. Three-volt lithium coin batteries perfect for watches, fitness or healthcare devices, and other electronics. This battery may last the lifetime of your equipment.