*BATTERY ONLY*
Working Voltage: 5-12V
Short press power ON, press + and - to adjust voltage,0.1V voltage adjust.
Long press Power and "-" button together, If shows B0 on the screen, that means start-up function open
Long press Power and "-" button together, If shows B1 on the screen, that means start-up function off
Big battery capacity 1350mAh, can use for about 5-6 hours