1S Mini Spot Welder Welding Machine DIY 18650 Lithium Battery Nickel Belt Portable Household Fiber Welding Machine Micro

QA:Q: What is the difference between the Upgrade 1S and the previous 1?A: 1S has added the function of adding your idle automatic discharge, which can automatically discharge to 50% in 5 days and extend the battery life. 1S also optimizes the circuit layout and structure, with better performance. In addition, type C charging port version is added to 1S.Q: What is the difference between type C and micro USB?A: Type C version uses type C charging port, supports positive and negative plug-in, and distributes a type C charging line. In addition, the type C circuit uses the gold deposition process, which is more durable.Q: Does type C support fast charging?A: Considering that fast charging may affect battery life, it only takes about 2 hours to charge from 50% to 100%, so fast charging is not supported.Features:- Portable Spot Welding Machine is mainly used in the welding of nickel sheet of cylindrical battery like 18650.- Built-in high-rate polymer power cell, the maximum output current is up to 639A, and it can continuously weld thousands of points after being fully charged.- With output power and remaining power indication, there are two output modes: timing trigger output and automatic trigger output. At the same time can set 4 output power.- Has four dual-color indicator lights, Green light for indicating the power, red light for indicating the welding power.- Charging indicator light: red for charging, green for fully charged.- It will automatically shut-down after ten minut