When Zero.G has a low battery level, the LED light will flash red 15 times to remind you need to charge it.
The Zero.G has a type-C port, and its maximum charging current is 1A.
The Zero.G has a 1500 mAh battery capacity. The built-in battery is not replaceable.
When the Zero.G is fully charged, the LED light will flash green 20 times and the battery will stop charging automatically.
Yes, it is adjustable
Standard version: 3.5 ml, TPD version: 2 ml.