【Battery Specifications】Model Name: DR02P Battery, Battery Type:Lithium_ion Voltage: 11.4V; Capacity: 57Wh 4623mAh; Cells: 4-cell; Color: Black. More than 500 cycles, Packages includes: 1x DR02P Battery for Latitude 3440 5440 Series Laptop ,1 Set x Screwdrivers,1x Instruction for Laptop Battery