Instructions for use
1: Tighten the tip (appropriate tightness) and press 5 times within 2 seconds. (The indicator light flashes a few times)
2: Press and hold the power button to act as a soldering iron. Release it to stop working.
3: Press and hold the power button for more than 10 seconds. The battery will activate the timeout protection feature. It is recommended to press and hold for 7-8 seconds, then press (loop this operation)
4: Display indicator according to battery level. The remaining lights indicate that the battery needs to be charged and the charge status indicator will flash. The four lights do not flash, indicating that they are fully charged.
5: Need to close and press 5 times in succession.