I was wondering if anyone has used Logic ECigs. When i charge my battery, the light on the charger goes from red to orange and then the blue light on the battery end goes off as does the light on the charger. On the back of the packaging however, it says that the charger turns green to signal completion. Also after a full charge like this, i take a few drags and sometimes, towards the end of the draw (maybe 4-6 seconds), the blue light on the end starts blinking and it seems to shut off the vapor. Pretty much after this light blinks i just start pulling air. Anyone have similar issues? is this normal? Thanks