Portable 99 Gear 12V DIY Spot Welder Kit PCB Control Board 18650 Battery Spot Welding Machine

Warm Reminder:

1.The input wire is 10AWG (fixed specification; 8AWG is not offered).

2.The welding pen output wire can be selected between 8AWG and 10AWG.

Model：K99

Gear: 99 gears

Display: digital tube display

Versions: lead-acid battery version, model battery version, car starter version, compatible version, 10-tube super Farad capacitors version.

Spot welding thickness reference: 0.05-0.3mm nickel-plated sheet

The thickness and effect of spot welding depends on the size of the discharge current

If the spot welding is not strong, because the current is small，Please use a higher current power supply

Type A Type B Type C Type D Adopt 5pcs MOS tubes, and the maximum current is up to 1700A

Type E Adopt 10pcs MOS tubes, and the maximum current is up to 3400A

Spot welding is the principle of welding using high current localized rapid high temperature to melt the nickel sheet and cooling.

Control board working voltage: 9-16V ，Working current about 90-180A

For 14650, 17490, 18650, 21700, 26650, 32650 and other lithium batteries (cylindrical), nickel-metal hydride batteries, etc. Can be spot welded firmly.

Prohibition of spot welding: copper, aluminum, soft pack batteries and lithium iron phosphate batteries

Power supply: self-provided power supply

1. Lead-acid battery version: old power type lead-acid battery 12V20AH--100AH.

20AH old lead-acid battery can not be more than one year, and then the old should be more capacity.

New power type lead-acid battery 12V20AH--45AH.

2. model battery version: 3S-4S 25C-90C, output line to 6-10 square, XT60 head.

3 car starter version: the normal car can start the 12V starter must be EC5 interface, the peak current can not exceed 1000A.

4. compatible version of the above three kinds of power supply can choose one of the power supply can

5.10-tube super Farad capacitors version

2.7-2.8V, 3000F. 4-6 strings of super Farad capacitors , The voltage cannot exceed 16V

Or: 3-4 strings of large monomers, 10-100AH, if there is a protective plate, it should exceed 150A

And: can use power type lead-acid battery power supply.

k99 Spot welder accessories include

1. Control board *1

2. Super soft silicone input cable*2 （The aircraft model battery version is without input line, and the startup treasure version is the EC5 female input line）

3. spot welding pen*2

4. Screws, several heat-shrinkable sleeves

5 Free: About one meter of nickel sheet for practice

Warm Reminder:

1.The input wire is 10AWG (fixed specification; 8AWG is not offered).

2.The welding pen output wire can be selected between 8AWG and 10AWG.

Warm Reminder:

1.The input wire is 10AWG (fixed specification; 8AWG is not offered).

2.The welding pen output wire can be selected between 8AWG and 10AWG.

Warm Reminder:

1.The input wire is 10AWG (fixed specification; 8AWG is not offered).

2.The welding pen output wire can be selected between 8AWG and 10AWG.