metals that retain a high order of ductility and resistance to brittle fracture down. to very low temperatures, and a much larger class of metals that, at some temperature. or in some range of temperature, undergo a transition from ductile to brittle.behavior. As pointed out above, the temperature level where this transition in fracture behavior. occurs is influenced by the test conditions.
If you are a moderate vaper, whereby you vape fairly consistently through most of the day, but only take a couple drags each time, your coils should last you about 14 days or so. If you are a very light vaper, where you take a few hits here and there throughout the day, your coil could last you 3 weeks or so.
Q. Do I need to hold down power button while vaping? A. Yes, while inhaling the power button on battery needs to be pressed to activate the heating coil. If the power button is pressed for more than 10-15 seconds continually, the battery light will flash and turn off to keep the heating element from burning out. Just wait a few seconds before activating the heating coil again. A. No, you do not need to press the power button to vape.