Compatible with over 3000 Models like IBM, DELL,Sony,Compaq,Acer, Canon,Toshiba,NEC,Hitach,Jujitsu,Phillips,Panasonic,HP,Samsung,Sharp ,Haier and so on. It will run your notebook for about 3.5-4.5 hours. Compatible with laptop requiring 16V or 19V input Output power: 65WH Output voltage: 16V, 19V selectable Output current: 3.5A max Running time: approx. 3.5-4.5 hours Charging time: approx. 4 hours Dimensions: 230 x 165 x 16mm Weight: approximately 750g