Just got my Totally Wicked Mega Batt, it's lonnnggg, but I don't know how long it lasts yet.... I took a brand new TW atomizer, a new flat tip cart from Diet Smokes and filled it with the TW 18mg menthol that came with the new batts. It reminds me of vaping a 100 instead of king, no big deal. My first experience with TW liquid, it tastes much different from the other menthols I've tried to date, can't quite put my finger on what it is yet. But I'm liking whatever it is..... I'm hoping these new batts last longer as advertised as my next recourse will likely be a mod like the Prodigy. Although I still can't picture myself smokng vaping one of those......