Safe to use and portable Built for reliable performance with good conductivity, strong torsion resistance, and low contact resistance. The mini, portable design makes it easy to carry and use anywhere. 5000mAh rechargeable battery and TypeC charging Integrated 5000mAh polymer lithium battery powers the welder. Includes a TypeC charging cable and charges fully in about 3 hours. Can double as a power bank to charge your phone, adding versatility for onthego projects. Color LCD display for clear monitoring A color LCD screen shows remaining battery, delay time, temperature, and the current welding gear. This enables precise control and helps improve work efficiency. 30 levels of adjustable output 30 adjustable output settings let you tailor power to different materials and thicknesses. This provides accurate welding and straightforward operation. Practical use scenarios DIY battery pack construction: weld nickel strips to Liion or Lipoly cells for custom battery packs used in projects like RC vehicles, drones, or portable power banks. Electronics and prototyping: perform precise spot welds on small battery tabs or connectors when modifying or restoring compact devices. Onsite field work and hobby projects: a compact, selfcontained welder that delivers adjustable power for quick, reliable spot welding in various environments.