3. Adjustable Voltage
The voltage level can be changed by pressing the power button 3 times consecutively.
Each color indicates a specific level of voltage: red 2.4V / blue 3.0V / green 4.0V.
4. Charging the Battery
The red indicator stays on when in charging and goes out when the battery is fully
charged. The charging current is no more than 400mA.
5. Protection
Over-charging Protection: The charging process will be terminated automatically when
the device is fully charged.
Over-time Protection: The device will stop functioning temporarily (the indicator light
also flashes 5 times) when the button is pressed down for more than 10 seconds.
Short-circuit Protection: When a short circuit is detected, the device stops functioning
temporarily when the button is pressed, and the white indicator light flashes 3 times.
Low-battery Protection:When the battery is running low and the button is pressed, the
indicator light flashes 10 times continuously and the device will stop functioning.
