Welmer Portable Dual Pulse Spot Welder H1, Small Household Portable Spot Welding Machine, Lithium Button Battery 18650, DIY Kit, Nickel Welding Product Description: The Seductive Expert in Portable Spot Welding, an Industry Pioneer High-quality battery core, guaranteed safety, durable and no power failure; Test without fear, one is stronger than two! New upgraded welding machine + welding pen professional portable spot welding two-in-one, no need for a separate port to access the welding pens; One-handed operation can be spot welded, truly freeing your hands, more convenient to use! Dual pulse handling, powerful effect; Can weld 0.25mm nickel-plated: 0.2mm steel, iron: pure nickel 0.15mm, solid welding, rounded solder joints Reasonable and accurate spacing between the welding pins, no need to manually adjust the spacing, spot welding to save time and more worry-free effort, details show the quality Comfortable, light and portable, not tiring during prolonged use. Dual manual/automatic mode, 11 adjustable welding points in more precise power Supports adjustment of the output power 1 to 11, and this product supports the manual spot welding mode; Sweat more controllable, more precise, more solid, better use, more professional! Small body, big energy, solid core + low energy consumption, high range of 1500 welding points, reduces the frequent load per point, daily use without anxiety for range Integrated quality assurance chip + temperature control sensor + safety algorithm; Double software and hardware protection, for your use of protection Wide range of uses, easy to handle in a variety of scenarios; Cylindrical battery welding, mobile phone battery spot welding, battery button spots, handmade DIY Specification: Name: Battery Welder Model: H1 Type: Portable Material: ABS Loading interface: Type-C Loading voltage: 5 V/1 A Output voltage: 4.2 V Output current: 650 max Battery type: Lithium polymer battery Battery capacity: 2200 mAh Speed adjustment: 11 speeds Product size: 192*43*25 mm Packaging size: 215*85*30 mm Weight: 261 G Packing list: 1 x Spot Welder 1 x Nickel Sheet 1 x G for glass paper 1 x TYPE-C CABLE