... 4.CE,FC High quality for ipad power bank Model no.i520Product namepower bank for ipadCapacity3000mAHBattery typeLi-ploymer CellsMaterialABS+PCCycle ... -ion battery,fully power supply.3.dual circuits protective ic,effectively provent over charge ,over discharge ,over current ... -ion battery,fully power supply.3.dual circuits protective ic,effectively provent over charge ,over discharge ,over current ...