1 ,For 18650 battery. Mobile power and other standardized production. 2 , Simple operating system, 7.5-inch color touch screen, user-friendly design, easy to understand. 3 , Control system: PLC programming control, with fault alarm system. 4 , Cooling device comes with solder pin and prolong life. 5 , X-axis and Y-axis ball screw design, the stepper motor driven.