inputs.text: works fine poor indicator light - bright light appears always power available output soon plug device transfer starts button seehems used control light wish way tell still charge not 1 star lost indicator light lights recharge process able transfer power 1 amp kindles well low dehemand devices without complaint no way telling bank still near full ehempty badslipping inexpensive 78\\ plastic rubber cap local hardware end keep dirt contacts stop false activationwhen charging kindle keyboard wants charge 85a supply 70a 420v large voltage drop power bank tablets like asus limit charging current 475v input would slow charging process phones small displays mp3 players charge fine