inputs.text: not seehem keep charge - purchased simply tired literally dozens old cell phone spare batteries phones no longer use lying around plus new phone droid razr fixed battery like iphones extra batteries werent option occasionally travel long distance air needed enough juice keep movies music going 20 hours heavy usage finally hate half way movie battery dies swap sparean external battery takes care thati purchased particular model becuase chance look imp50d imp50d received defective decided go imp70d trading extra size 40 increase juice far build quality goes unit solid professional looking usb output port little loose side connects charges fine charging micro usb plug power nice plug phone useskeep mind originally bought air travel since getting new phone playing way much ive found charger life saver get late afternoon evening call battery burnt quickly grab imp70d plug take call howeverthe imp70d enough juice fully charge razr least 3 times not able reproduce problem either battery pack not advertised capacity unable hold charge able fully charge 1780mah cell phone battery fully least 3 not times averaging less two make matters worse one charge led indicator show pack 3 4 leds indicating decent charge check briefly turning pack making sure shut next use ended one blinking ledindicating pack exhausted exact issue imp50d died one full recharge well short stated capacityfor size awkwardness product expecting something supposed giving two stars got sale work somewhat one heck brick carry around get 152 charges ofhad exact issue imp50d died one full recharge well short stated capacity size awkwardness product expecting something supposed giving two stars got sale work somewhat one heck brick carry around get 152 charges