Polymer li-ion Battery pack 1.high energy density 2.high working voltage ... Tablet PC,PDA,bank card, smart card,Tablet personal computer,flat computer,Telephones,Cameras,Romote control helicopters,Electronic toys,Mp5, ,electronic ... electronic cigarette , etc7.4v 700mAh Polymer li-ion Battery pack Adventage:Green product various dimensionsLow impendenceExcellent discharge performanceExcellent storage ...