Charging port: Type-C
* Rapid draws on device or press LED button 5 times to power on, off device.
* Rapid draws on device or press LED button 3 times within 1.5 seconds to adjust voltage.
* Rapid draws on or press LED button 2 times within 1.5 seconds to preheat. Preheating will take 15 seconds under a constant 1.8v load.