My first question is how long does it take to charge? I'm asking because I've had it on the charger for 2 hours and it died in one day. I'm not a heavy vaper and when I first got it the battery lasted for about 2 days. Also the charger itself is confusing me. I know it flashes between red and green while it's charging, and now it's a solid green but it's still not charged. I'm not sure what's going on. My last question is about the AC adapter. I'm using my eGo AC adapter that I used to use with my passthrough, the charger seemed to fit in the usb slot but I'm afraid that I may have messed it up. Did I screw myself over by not buying the specific combo?