This may be out of topic, I went to sassy joes also @fr fleas when I started about a month ago, the ego c-twist battery's did not last not even two weeks, they sold me pure garbage knock off of the original ego ctwist. The top piece with wires started to get lose when I took off the cartomizer to fill with e-juice and I went to other known vendors they said he known to sell crap and fake products. Tried to get them to replace it with the genuine Egos, and they keep saying I damage it by putting on my pants pocket when its been sitting at my desk the entire time. I did end up buying two of the original E-twist making sure the bottom has the logo, and found a hung difference in craftsmanship, the top piece where the batter connects with the cartomizer it welded proper and does not budge unlike the SassyJoes stuff