hmmm, screwdriver has a fair battery life ...cartomizers arent the fastest thing to blow away, unlike a 901 cart...
I'm going to guess the cart outlasted the SD battery by maybe 20-30 minutes, if not a wee bit more.
Dangit, knew I should have put that question out with money riding on it. ;-)
No, vapor from the cart lasted real well for about 2 1/3 to 3 hours of fairly constant chain vaping and then petered out. The battery started at around 4.12v and was at 3.85 when the cart gave out. Thats pretty much the same battery performance I would get with any other atomizer under similar vaping. Course w/ any other atty I would have had to top off several times, and probably blow the thing out once. Cartomizers definatley got a place.
Next up is perfecting refilling the thing.