Portable Mini DIY Spot Welding Machine Kits 4V-12V PCB Circuit Board Welding Equipment for 18650 Battery

Features:
Compact size, lightweight and portable, easy to put into your pocket and carry around with you.
Easy to use, one-button to on/off, very convenient.
Support pulse time adjustment (totally four gears adjustable).
Automatically shut down when not in use.
Fine workmanship with stable performance, can provides long service life.
Suitable for using on leadacid battery(＞20A), model airplane battery core, car emergency powersupply, 2 series superfarah capacitance.
There are two types optional, spot welding machine + neddle or spot welding machine + neddle + 0.5m red wire + 0.5m black wire + copper cable lug, you can choose according to your demands.