Zerominusone sir those are standard kr808's. The dual coil cartos (it's the newer technology) are designed so the filler isn't touching the coil, so it's very hard to burn the carto, and acts more like direct dripping. The problem with that is they don't take well to higher voltage (smokeless image's do far better than bloog's version though). The carto doesn't burn, but the
juice does, which believe me is almost as bad as a burnt carto... The wow cartos are based off the old tech, but are low resistance (2.3ohm avg in all my testing), and have no issue with voltage as high as 5.2v. The king diamond batts from v4l are a newer tech, but they went in the opposite direction from the regulated batts. Regulated batts stay at 3.6v until the very end where they drop to 3.2v before needing a recharge. The kd's (technically they're the diamond series, but when you order them it comes up as vapor king diamond, and King being the legend he is, well....
) are based off a new cell technology that holds a higher voltage longer. They start at 4.2 and slowly wind down to 3.7 at death. Done a lot of testing on them (my blogs are actually a comparison of the bloog vs. the kd's, sorry for the self promotion).
Fsroq (sir or Ms.?) the fatt batts like the ego and it's clones (haven't tested a gogo or an igo yet, will soon after my bank account recovers from my latest purchase) don't run at 4.2-3.7 under load. They too are regulated, only at 3.2v...
