Specifications: 1) Models: CR2450 2) size: 24.5*5.0mm 3) nominal voltage: 3.0v 4) nominal capacity: 540mah 5) battery with pin is available 6) anyother models including: CR2016,CR2025,CR2032.CR2477... Packing: traditional tray pack. Battery with pin, RoHS,SGS are all available.