Battery type: Lithium-ion Capacity:3.7V 13200mAh/48.8WH 8800mAh Notobook external battery series for IBM,Acer,Lenovo,Asus,HP,DELL,Fujutsu, ... NEC,SONY Size:160*80*25mm Weight:500g Battery type: Lithium-ion Capacity:3.7V ... ,HP,DELL,Fujutsu,NEC,SONY) 13200mAh Notobook external Lithium-ion battery series for IBM, Acer,Lenovo,Asus,HP,DELL,Fujutsu,NEC, ...