18650 Battery Spot Welder Board Portable Spot Welding Machine Powered By Double Layer Capacitors

18650 Battery Spot Welder Board Portable Spot Welding Machine Powered By Double Layer Capacitors

Description:
The Spot Welder is suitable for connecting 2 double layer capacitors in series (2.8V + 2.8V), and a single capacity of 3000F or above is recommended. The circuit relies on MCU program for precise control, and it is divided into 3 power levels. Automatically detect the contact resistance of welding pen and trigger automatically. Output via 4pcs 300A power tubes, 0.15 nickel sheet can be welded.

Package Included:
- 1 x Main Circuit Board
- 1 x Buzzer
- 2 x Welder Pen with Wires
- 2 x Input Wires
- 4 x Insert Ears
- 4 x M5 Screws
- 2 x Insulation Heat Shrinkable Tubes

Note:
- Double layer capacitors and charging circuit are not included.
- 2psc 2.8V 3000F capacitors are recommended.
- Charging voltage 5-5.6V and current 2-20A are required.  
- Battery is not included in the package.