@ 2.2 I would prollly be at 4.5v,maybe a little higher.Provape stated in 2010(when I got my first provari) that a 2.2 ohm atty or carto would give the best range of adjustability without overloading the amp limit on the button.Since then the amp limit has been raised by 1 amp to 3.5 amps.It will...