1. The board uses 6 MOS tubes with extremely low internal resistance, a single 300A, which greatly improves the stability of the circuit
2. Designed a voltage stabilizing circuit, so that the MOS drive voltage is no longer dependent on the battery, and is more stable and reliable, so that the board can support 6-24V wide voltage use
3. The new circuit layout greatly reduces the internal resistance, the heat is smaller, and the soldering is more laborious
4. Added the external interface of LED and button, convenient to install the board in the box
5. Optimized the program to make the operation more smoothly and freely

Features:

Working voltage: 6-24V (recommended to use within 6-18V, because the voltage is too high, the spark will be very large, and it is difficult to weld)

Working current: 90-200A (the best working current is about 150A, if the current is too small, it will not be able to weld worms)

Optional:

1.36-60AH car start battery

2.20AH motorcycle battery 2 to 3 in parallel

3.2S-5S4000mah30C or above lithium battery

Instructions for use:

Function buttons: 1. Used to switch the machine 2. Used to switch gears and spot welding mode

Turn on the spot welder: long press the function button for 2 seconds to release the spot welder to turn on

Shift: the first gear is the default after power on, long press the function button for 2 seconds to release it to increase by one gear. A total of 5 levels, there will be sounds and LED lights! For example: third level, buzzer

Three beeps, LED flashes three times. There are 5 levels in total, from level 1 to level 5, the spot welding strength is gradually strengthened, and level 5 is the strongest! After level 5, press and hold the button again, it will turn off and off

Long press the button in the machine state will turn on the machine, and the gear will return to the first gear.

Switching mode: In any gear, short press the function key, there are 2 modes of switching mode: timing output mode and trigger mode

Package:

1 x Circuit board (6 Mos)

2 x Soldering pens 

2 x Input wires 

3 Sets screws

1 x Buzzer

1 meter nickel sheet