I am bumming now. Wed I got my order from Puresmoke of a Classic kit w/USB Passthrough. I used and was TOTALLY happy with the passthrough while my batts were charging. Well I went to work today and used the batts on the penstyle, got home, plugged in the passthrough and now it doesn't work at all. The LED light comes on but it will not activate the atomizer. I emailed Daniel @ Puresmoker whom I know is extremely busy and am wating for his reply. But in the meantime, I was hoping one of you could help me. I love that passthrough and can't figure this out. I did a search on the forum and couldn't find a problem like this one. Any advice would be appreciated.