1, Polymer Lithium-ion battery: 4500mAh/3.7V , 2.special universal power pack 3.high capacity 4500mA universal power pack for ipad,ipad2 Description ... Led light indication, Press on the button to indicate real power in battery case from 25%,50%,75%,100%7) Press the ... Weight:120gPacking: Gift box packingQTY:50PCS/carton customized 4500mA universal power battery pack for ipad2 ipad iphone4