Specialty Batteries: Type - Lithium Battery; Primary Application - Keyless Entry, Electronic Battery; Cell Style - Coin; Voltage - 3V; Capacity - MAh - 486; Terminals - Flat Terminals; Height - 0.197 in(5.0 mm); Diameter - 0.965 in(24.5 mm) Dia; Industry Part Numbers - DL2450, ECR2450; IEC Listing - CR2450; Packaging - Carded; Manufacturer Series - Ray-O-Vac