1. 1. The Kmax can work with 18350, 18650 or 18500 batteries.
   2. Variable voltage 3.0v-6.0v variable wattage 3.0w-15w
   3. Kmax can test the resistance of the atomizer as well
   4. Both the display and system can be locked
   5. The top ring is removeable , so the Kmax can fit all the 510/ego thread atomizers
   6. Hidden display, only 1 button, looks very cool
   7. Display functionality. It can display the battery voltage, output voltage, atomizer impedance and output power.
   8. When the Kmax is shorted, the display will show “F1”, when the atomizer resistance is less than 1.2Ω,the display will show “F2”
   9. When the voltage is higher then 9v, it shows”HHH’, when the battery need to be charged it shows “LoU”.
   10. If Kmax reads 123,456,789, take the battery out, wait a moment put in a fresh battery.

Solid Push Pin button connection (no external spring to pop or sag)