... :11.1V 6600mAh/74WH 3.7V/20000MAH 20000mAh Notobook external Lithium-ion battery series for IBM, Acer,Lenovo,Asus,HP,DELL,Fujutsu,NEC,SONY ... Size:112* 175*24 mm Weight: 590g Battery type:Lithium-ion Capacity:11.1V 6600mAh/74WH 3.7V ... , Acer,Lenovo, Asus,HP,DELL,Fujutsu,NEC,SONY) 20000mAh Notobook external Lithium-ion battery series for IBM, Acer,Lenovo,Asus,HP,DELL ...