How to use it:
1:screw on the tip voltage to 4.8v maximum.
2:press the power button for 5 times within 2 seconds after the power on.
3:this machine has 10 seconds timeout protection
4:duirng using, the button light flashes, it indicate the battery is running out, need to charge
unscrew the soldering iron tip, screw on the charger that comes with unit, plug it into our mobile phone charging head.
when the battery is fulled charged, the main unit is off, the charger is green.