Right on man and that's pretty dumb that the update killed battery life. Totally whack.I updated my RX200S to the 4.10 firmware but found the battery wasn't lasting as long after someone in a forum mentioned it and the only thing I could think of for a reason was a longer display timer. So i rolled it back to the 4.0 release and back to a whole day of chain vaping. Mostly low wattage under 12 watts. Some higher when I use Sub Ohm tanks and TC mode.