So I bought a 901 kit two weeks ago that of course came with two batteries. Both of the batteries worked for a week, then one of them, still lights up, and works, but produces no vapor. The other one still works and the atomizer heats up, so I know the atomizer still works. I ordered a new battery, received it today. I have had it on the charger for 3.5 hours (not the full 8 yet), but I briefly took it off to connect it to the atomizer and the battery led lights up, but again, it produces no vapor. I don't understand. Should I leave it charge for the full 8 then try again, or do I need to order a new atomizer (even though the one I have works with one of the batteries that I have)? Thanks! 
