I am fairly new at vaping and I would like to be able to adjust my battery power (variable volts) or is it watts? Anyway I cant seem to find where the Ohms for each cart that I buy are located . . i cant adjust the battery until i know the ohms of the cart. Anyone know where these are located? I specifically have a cart from Buddies and one from Bobsled. Any assistance would be greatly appreciated as i dont seem to be getting the effect from vaping that i wanted and im about to throw in the towel.