This spot-welding machine features the characteristics of small size, 5000W high power and portable design. With the built-in 7.4V 3500mAh lithium battery, it can be reused after charging, which is very convenient. Come on and try it, it will not let you downFeatures:With the plastics shell, lightweight & wear resistant, portable and reliable, providing a long service time.5000W high power can reduce your working time, effectively improving your work efficiency.With 10-level current adjustable, you can adjust it through the current adjusting button, giving you a better using experience.Comes with the welding pens with fine conductivity, the welding needle can be removed.Two models optional, including automatic welding machine and welding machine with treadle switch for you to choose.Specifically designed for 18650 battery welding, can not welding for other things.Specifications:Model: with Treadle Switch / Automatic (Optional)Material: plasticColor: BluePlug: EU / US (Optional)Battery: 1 * 3500mAh lithium batteryPower: 5000WWelding Thickness: 0.1-0.15-0.2-0.25mmPackage Size: Approx. 195*135*105mm / 7.7*5.3*4.1inPackage Weight: Approx. 850g / 29.98ozPacking List:1 * Welding Machine1 * Charger1 * Treadle Switch