SS ROBOTICS 12V Spot Welding Machine DIY Portable Battery Energy Storage PCB Circuit Board Welding Device Welding Equipment for 18650/26650 / 32650 Lithium Battery - Product Features
There is a window on the back of the drive part, you can add copper opads for the LEDfacilitate the connection between the LEDs & buttons on the board and 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 power supplies more stable.
Switch Function: press the switchlow power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds (the blue light flashes and the medium power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds (red light flashes, high power spot welding pulse is output every 3 seconds); press the switch for 1.5 seconds to turn off the machine. Warranty not applicable for this product
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