Again im just vaping on a no name battery but it would last me a good 2 days and now its not even lasting a full day. Is this how long most usb charge last? Ive only had it a month and i would think this thing would not burn out in a month i always take it off the charger as soon as the light turns green so i know im not over charging it. its not as small as a cigalike its about as thick as my finger and as tall as my pointer finger If that even helps!