Just a heads up:
I have been using the Vision Spinner as a power source. It's nice. Pretty much lasts through the day. I have been charging it daily, but I didn't seat it properly in the charger one night and ended up with a dead battery halfway through the next day. DOH! So I figured I'd buy a back up because it keeps me from smoking. I ended up getting a slightly better and slightly more expensive battery. It's nice. If you want to spend 10 more bucks this one is really good:
http://www.litecigusa.net/Innokin_iT...n-itastevv.htm
Looks like this, but mine is chrome: