So I am new to all of this E-cigarette stuff and I just got me a DSE901 today. But every time I try to charge it, the LED on the end of the battery just blinks green and the case has a green light on it and its not holding a charge. I left it in the wall for an hour and i only got like 2 drags off of it before it died. Its brand new it shouldn't be dead yet. Am i doing something wrong? or is there something I am missing?