I bought the Hello006 from
madvapes which is like a Ego on steroids. It comes with a 1400 Mah battery and the atty is built into the cone. It tastes different then a regular 510 but pretty good.
The only thing is that when I screw on a regular 510 atty into the battery it covers up the air holes and makes it hard to vape but if you give it a 1/4 turn back it is ok.
But sorry can't tell you about the new xl battery.