DIY Portable Spot Welder for Lithium Battery welding

Description

DIY Portable Spot Welder for Lithium Battery welding kit is designed for welding nickel-plated steel strips from 0.1mm to 0.15mm and includes the controller, two welding pens, two power input cables, and a black plug. The best way to understand how it works is to check a demo on YouTube. The one below shows the user welding a metal strip to a 18650 battery.

The two pens must be placed vertically, perpendicular to the plate, on the surface, because then it transfers the strongest energy due to the size of the surface! This is also written by the Chinese manufacturer! Regards from Hungary, spot welder.

Features:
1. Wide selection of welding power supply: lithium battery power supply or 12V car battery.
2. The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality.
3. With LCD display screen, can display welding parameters.
4. The welding pen and the input line are connected by U-shaped cold-pressed terminals, which is convenient for disassembly and replacement.
5. Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use.
6. The power board uses 2 Gusi copper to increase the overcurrent capacity.
7. using 5 300A MOS tubes, non-disassembled MOS tubes.
8. The MOS tube driver adopts the imported special chip driver. The fastest MOS tube can be hit with 20nS. The switch is fast to prevent the explosion of the tube and the non-triode push-pull drive.
9. The MOS drive design adds a transient diode to protect the MOS and prevent the explosion of the tube.
10. 10AWG multi-filament flexible wire is used for the welding pen line and the input line to increase the overcurrent capacity.
11.The controller is mainly for welding nickel-plated steel strips from 0.1mm to 0.15mm.
12. A 25V10000uF high-frequency low-resistance capacitor is added to the power input for energy compensation, which increases welding stability.

Instructions for use:
1: Power connection
The controller comes with a 20cm long 10AWG input wire. One end has been crimped with a U-shaped terminal, and the other end has not been processed. Connect the crimped U-shaped terminal to the control power input terminal, and the other end is processed according to its own power supply. Do not connect the negative electrode wrong.
2: Switch on and off
There is a power switch under the control board. After pressing, wait for 3 seconds. After the buzzer drops, the LCD lights up and the boot is complete. Press the power switch again to shut down.
3: Screen description and parameter adjustment.
4: Welding
Keep the welding pin clean. If the welding pin is polished into a round head, the welding effect can be improved. There are manual and automatic methods.

Specification:
Material: Metal
Input line length: app.20cm/7.87in
Length of welding pen: app.30cm/11.81in
Color: Red+Blue+Black
Battery:  lithium battery(not included)
Controlled with by unnamed MCU
Display – LCD with welding parameters:
WELD ENERGY – 01-99 adjustable by up and down keys
INPUT – Display input power voltage
WELD WAY – Manual / Auto (adjustable with “square label” button)
Based on 5x 300A MOSFETs
30cm 10AWG cables for welding pens
25V 10000uF high-frequency low-resistance capacitor to increase welding stability.
Misc – Power switch, buzzer
Power Supply – 12V via DC jack or car/lithium batteries through 20cm 10AWG input cables

Package Content:
1Pc  Controller
2Pcs  Welding pen
2Pcs Power input line (Red and Black)1 Pair U-shaped cold-pressed terminal (used to connect to input power)

1 manual