I just got mine yesterday and it worked fine up until today. It is fully charged and is probably not defective from the looks of it. The battery could hold on as long as it wants but when i plug that atomizer in it have a whole new story. The light fades as soon as i press it and then blinks 10 or more times. Like i said the battery alone does no such thing when it is on, all i do is press and hold as long as i like