Is this gonna be a 5v that looks like a real cig about the same size as the xl? Cause a 5v that has the same qualities of a 3.7v regular vapor king would be revolutionary. If the batter could last as long.
If you can find a 7.4v battery that has protected cells and is smaller than a AAA, we'll _all_ love you for it.
Battery technology hasn't caught up with us yet.