DIY 12V Spot Welding Machine Battery Storage PCB Circuit Board Spot Welder For 18650/26650 Welding Machine Equipment Accessory

TYPE 1
This product is very useful in daily life, with an battery, it will become an energy storage spot welding machine for welding nickel pieces such as lithiium batteries and nickel-chromium batteries practical, easy to operate and use, wide application range, has a long service life. Come on and try it. ​
Features: ​
There is a window on the back of the drive part, you can add copper or tin by yourself. ​
The external pads for the LED and the on-board buttons are added to facilitate the connection of the LEDs and buttons on the board to other places. ​
The upper and lower MOS design is bold and tinned to make the internal resistance smaller and the current stronger. ​
Using 25V low internal resistance and high frequency capacitors makes the power supplies more stable. ​
This circuit with a 12-V battery will become an energy storage spot welding machine for welding nickel pieces such as lithiium batteries and nickel-
chromium batteries. According to different configurations, the thickness can be about 0.1mm-0.15mm ​ ​
Specifications: ​
Material: PCB ​
Suitable for: 18650/26650/32650 lipo battery ​
System voltage: 12-V-14.6V
​Working current: 90-150A ​
Suggested battery: (not included)
​20-45ah Lead-acid battery with fine performance and small internal resistance
​3.5-5.5ah 45C 3S aeromodel lithiium battery pack ​
30-35ah capacity 18650 battery pack ​
Package size: 190 * 110 * 30mm / 7.5 * 4.3 * 1.2in ​
Package weight: 110g / 3.9ounce ​ ​
Note: ​If the battery is pretty  and the internal resistance is very low, and then there may be large current overload. ​If you are not sure about your battery, it's better to extend the wire by around 1 meter with 2.5² or 4² wire, then it will reduce the risk of power tube burnt. ​
​Packing list: ​
1 * Main Circuit Board ​
2 * Input Wire
​2 * Output Wire(with Welding Pen) ​
1 * Welding-Components Kit