This is a kind of quality spot welding machine, made of aluminum alloy material, fine structure, wear resistance and can provides long service time. Support charge it while using, support stable welding 0.12mm nickel sheet, you can adjust to 5 gears to welding 0.15mm nickel sheet under full charge. Large power, compact size, lightweight and portable, support welding 18650/21700/32650 battery. You can have a try.

Features:
Made of aluminum alloy material, fine structure, wear resistance and can provides long service time.
Support charge it while using, support stable welding 0.12mm nickel sheet, you can adjust to 5 gears to welding 0.15mm nickel sheet under full charge.
One button to use, long press to turn on/off the machine, short press to switch gears, totally 5 gears adjustable.
Equipped with USB interface for easy charge, very convenient.
The MOS tube will automatic output when the welding pen contact to the nickel sheet.
Equipped with indicator light, blue-on, charge-red, fully charge-green.
Automatic shut off to protect the battery under low voltage.
4 tubes design support 1200A, with redundant stable states.
Large power, compact size, lightweight and portable, support welding 18650/21700/32650 battery.
Built-in dual high-rate polymer power cells, provides high working efficiency.
Dual thicken pure copper strip, supperlow internal resistance to increase overcurrent capability.

Specifications:
Name: Spot welding Machine Set
Material: aluminum alloy
Color: black
Battery: 2 * high-rate lithium battery, 3.7V, 8000mAh (included)
Voltage: 3.2-4.25V
Current: 630A
Pulse: 30-70ms
Impedance: totally 6.8m
Trigger delay: 1s
Low consumption: <1mA> Item size: 110 * 28 * 85mm / 4.33 * 1.10 * 3.35in
Package size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97in
Package weight: 420g / 0.93lb

Packing List:
1 * PCB Board
1 * Pair of Welding Pen (each pen is connect with one 10AWG silicone wire)
1 * Type-C Cable
2m * 0.1 Nickel Sheet