Household Handheld DIY Spot Welding Tool Mini Size Lithium Battery Welding Machine for 18650/21700 Battery

Features:
ABS and PC engineering plastics outcase design, firm and wear resistance, can provides long service time.
Three gears of power design, automatic trigger, and overtime automatic shutdown.
Equipped with a 3.7V, 4500mAh power lithium battery, with a discharge rate of 90C and the welding current is about 150A.
Adopts split type weldering pen, with larger contact area and smaller contact resistance, more flexible and more practical.
Output through the MOS tube, and the energy will be concentrated at the end of the welding pen, and it will be heated by short circuit to fuse the nickel sheet firmly with the battery.
All this will be happened in milli seconds, simple and quickly.
It is precisely controlled by the single-chip microcomputer program without trigger the switch.
Free your hands or foot pedals completely.
Self-carried with a recharging control module, which charges the battery through the USB port.
And it can welding hundreds of welding points on commonly used nickel-plated sheets within 0.1mm-0.15mm if fully charged.
Equipped with recharging indicating lamp, red while recharging and green for fully charged.