Ok, wondering if anyone else has ran into this problem. Started using a new ego-c atomizer last night with one of the old style batteries (can't be turned on and off by clicking 5 times). I noticed the atomizer getting pretty hot but it was vaping really well so didn't think much of it. This morning the battery I was using died so I switched it with one of the new style batteries (can be turned on and off) and it vaped once, then died. It was a completely charged battery. So I pulled out my other backup new style battery, vaped once, died. Tried my other backup old style battery and it works fine except getting really hot. I put the two new style batteries back on the chargers this morning before work, got home and tried them again with this atomizer, vaped once and dead. Both of them. The batteries are working fine with the old atomizer I was replacing, just not this new one.