I bought this LCD display on e-bay or one of those sites for a couple bucks but have no idea if it would be possible to use it on a e-cig mode and if so to do what? The3n one more time...how would I hook it up? I have no idea how they work so all I know is there are several terminals to connect wire to on the top. The battery is a 18650 just to give you an idea of the size of the LCD screen. Anybody have any ideas?