Featuresr discharge continually for 4 hours with 5000mah capacityr 500 times unimpeded cyclic charge discharge and still keep 80 power storager led flashlight can used for emergency lightingr take high quality polymer battery core hold wonderful power storage can be used for phone pad mp3 and other digital productsr adopt advanced intelligent protective core to avoid harms caused from overflow current overcharge under voltage min load overload short circuit etcr smart indicator