features high wear resistance and long service life, mainly used for the welding of nickel sheet (0.1mm~0.12mm) of cylindrical battery, NI-MH battery, nickel cadmium battery and so on. Just have a try! Features: Made of selected aluminum alloy material, with fine workmanship, featuring wear resistance and long service life. Integrated electric welding pen, gold-plated terminal red copper pen holder copper aluminum oxide welding pin, with fine conductivity and low contact resistance, quickly detachment and easy carrying. 400mm long spot welding pens for more flexible operation. Thickened pure copper strip, supply low internal resistance to increase over-current capability. 6-gear of output power adjustable to achieve more accurate welding. Output power indicators: light up the corresponding number of indicators according to the output gears. Electricity indicators: light up the corresponding number of indicators according to electric quantity. Output mode modulation indicators: light up the corresponding indicator according to automatic / manual mode (adjustable). The temperature control probe for intelligent temperature control and safety protection, it will automatically shut off when the temperature is higher than 60℃. Built-in 5V 5000mAh Rechargeable high-rate polymer power lithium battery Type-C interface, support full recharged within 3 hours through the equipped USB cable, and the maximum output current is up to 650A. With the USB interface, it can be used as a 5V / 2.4A output power supply to charge your mobile phone. Mainly used for the welding of nickel sheet (0.1mm~0.12mm) of cylindrical battery, NI-MH battery, nickel cadmium battery and so on.