This is why I think V4L should really consider making there own mod. Either it be a 10440 (AAA) size battery mod to a 18650 battery mod. Go fully mechanical and no more worries of electric switches going bad. And if made correctly you can make a mod that will last a long time and its a good at home vaping machine. Cant go wrong with a mod. I use my batteries when Im on the go.. but when I get home I use my mod.