FNIRSI SWM-20 Smart Spot Welder in Pakistan The FNIRSI SWM-20 smart spot welding machine is a portable tool for thin-metal spot welding and battery-tab projects. With dual-pulse spot welding, a built-in 5000mAh high-discharge lithium battery and a power bank function, it combines welding control and portable power in one compact unit. Find the SWM-20 at Robostan.pk for electronics workshops, makers and battery-pack assembly projects in Pakistan. Key Features Dual-pulse spot welding: a preheat and welding pulse sequence for controlled spot-welding work. 5000mAh rechargeable battery: integrated high-discharge lithium battery for portable operation. Four preset combination levels: preset settings to help select a starting configuration for your workpiece. Power bank function: charging and discharging specifications of 5V / 2.1A, as printed on the packaging. Screen and physical controls: view settings on the display and adjust using the buttons and rotary control. Status indication: blue light indicates normal operation; red light indicates an alarm condition such as overtemperature or undervoltage. Technical Specifications Brand / Model FNIRSI SWM-20 Battery capacity 5000mAh Charging 5V / 2.1A Discharging / power bank output 5V / 2.1A Preset levels 4 preset combination levels Welding materials listed on box Nickel, iron and stainless steel Welding thickness listed on box 0.10.5mm Maximum welding current listed on box 1200A The current and thickness figures above are manufacturer packaging ratings. Achievable welds depend on material, strip composition, thickness, battery charge, electrode contact and selected settings. The 1200A value is a maximum welding rating, not a continuous current specification. ApplicationsUse the SWM-20 for suitable nickel-strip and battery-tab work, small electronics fabrication and compatible thin-metal joining. For 18650 battery-pack projects, confirm that the chosen strip material and cell connection method suit the machine before welding. Frequently Asked QuestionsDoes the SWM-20 have a power bank function?Yes. The box lists a power bank function with 5V / 2.1A discharging.Can it weld every material at 0.5mm thickness?No universal result is guaranteed. The packaging lists a 0.10.5mm range; practical capability depends on material and welding conditions. Test on suitable sample material first.How should I start a welding project?Follow the manufacturer manual, select appropriate settings and test a sample weld before working on a battery pack. Wear eye protection and avoid damaged cells or short circuits.