Features SAFE AND PORTABLE: Spot welding machine has good electrical conductivity, strong torsion resistance, low contact resistance and safe to use. Mini portable design, easy to carry. Small but feature packed to meet your various battery pack building needs 80 LEVEL ADJUSTABLE OUTPUT: Spot welding machine with 80 level output power adjustable, can be adjusted according to your different needs 1‑80 level, very fine adjustment can make welding more accurate, spot welding effect more perfect POWER SUPPLY INFORMATION: The mini spot welder has a 5000mAh rechargeable polymer lithium battery and a Type C charging cable, which can be quickly fully charged in 3 hours. 2.4A fast charge can also be used as a mobile power to charge the mobile phone, APPLICABLE SCENARIO:The spot welder with large output power can be used to connect strips of lithium battery, or spot welding iron sheets, stainless steel sheets.It is ideal for making battery packs and engineering repairs. EASY TO USE::This mini spot welder equipment is mini and lightweight, space-saving in home, and you can transport your spot welder to different job locations easily and quickly. Feature: 1. HD DISPLAY: Portable spot welder with a reversible screen, clear display, you can clearly know the remaining battery, delay time, temperature and level, through the screen at a glance to understand the working status of the product. The default language is English. You can change as required Specification: Item Type: Mini Spot Welder Voltage: 4.2V Battery: 1 x 3.7V Polymer lithium battery Welding Current: 6-1200A Fully Charging Time: 2-3 Hours Standby Current: 20uA Theoretical Standby: Over 2.5 years Charge: 5.2V 2.1A Discharge: Maximum 5V 2.4A Package List:1 x Mini Spot Welder 2 x Welding Pen 1 x USB Charging Cable 1 x Strip 1 x Insulation Pad 1 x User Manual Package List 1 x Mini Spot Welder 2 x Welding Pen 1 x USB Charging Cable 1 x Nickel Strip 1 x Insulation Pad 1 x User Manual