DIY Battery Portable PCB Board and Spot Welding Pen Set Electronic Energy Storage Spot Welding Machine Accessory

Features:
Use this circuit board to works with a 12V battery can makes it become anenergy storage spot welding tol for welding nickel pieces such as lithiumbatteries and nickel-chromium batteries.
And the welding thickness is range from 0.1mm to 0.15mm according todifferent configuration, for welding 18650/26650/32650, etc.
Equipped with one mode swtich key, which can switch modes, each modecorresponds to different welding time.
LED corresponds to red / green / blue / white / yellow / pink / purple, 7modes, the shortest time is red led and the longest time is purple.
Long time press to set the waiting time, the default is 3 seconds and themaximum can be set to 10 seconds.
Current requirements: 150A or more instantaneous output (such as car starterpowersupply, 3S RC high-power battery pack, 20A leadacid battery with fineperformance above 20A).
Lightweight and portable, stable and reliable, wear resistant and can provideslong service time.
The spot welding pen is consist of silicone wire and copper solder pen, safe andcan provided stable performance.