Sony CR2016 Lithium 3V Watch Battery (Exp 10/2032 ) 2Pc $1.85 Brand Sony Type Coin Cell/Button Voltage 3 V Battery Size CR2016 Chemical Composition Lithium condition New Lightweight, High Voltage and High Energy DensityOutstanding Temperature CharacteristicsCompatible for Cameras, Calculators, Watches, Toys and other electronic devicesOutput : DC 3V