Wow, the more I get into this e-cig things, the more problem I found. I am only couple weeks old to this whole things and already found that an ego twist and a vision spinner is kind of tight for me. The problem is that I don't want to keep spending on equipment. This is not my hobby. I am into this to full fill my hands and mouth habit to quit the analog. I usually charge both batteries full at night, sometimes almost full. Sometimes, one battery is already need charge and the other one is due around evening. I went from around 2ml a day to around 4ml to maybe 6ml a day now. Is there a battery that last longer, but don't put a hole in your pocket?