Duracell 2032 Lithium Button Cell Battery 2-Packs - For Medical Equipment, Security Device, Health/Fitness Monitoring Equipment, Calculator, Watch, Keyfob Transmitter - CR2032 - 3 V DC - 2/Pack - 36 / Carton Special application battery offers reliable, long-lasting power and triple corrosion protection. Duralock Power Preserve technology helps lock power into this 2032 Battery made with high-purity lithium. Battery lasts 10 years in storage. Use in security devices, medical devices, fitness devices, calculators, watches, key fobs and more.