12V DIY Spot welding machine pen accessories full set of accessories DIY portable 12V battery energy storage spot welding machine PCB circuit board


It is used for welding 18650/26650/32650 and other lithium batteries. 
Advantages: portable, stable, reliable and durable.


Users need to prepare their own 12V battery for power supply, and the welding current is about 90A~150A. It is easy to weld the common 0.1mm~0.12mm nickel-plated sheet. 
After several generations of product updates, it is now upgraded to automatically trigger welding, freeing the fingers of the button.


System voltage: 12V
Working current: 90-150A
Battery recommendation:
20-45ah lead-acid battery with good performance and low internal resistance
3.5-5.5ah 45C or so 3S model aircraft lithium battery pack
30-35ah capacity type 18650 battery pack


The battery pack that can start the car can basically meet the power supply requirements of this circuit


Function description: After power on, press and hold the switch for 2 seconds to start up


There are 4 modes. Long press the switch for 3 seconds to switch to the "beep" sound and complete the 1st mode: the low power green light flashes once


2nd gear: medium power green light flashes twice 3rd gear: high power green light flashes 3 times 4th gear: automatic mode red light is always on


Turn off the device after long pressing the switch while the red light is on