FNIRSI® SWM-20 1200A Dual-Pulse 2-In-1 Portable Battery Spot Welder

The portable handheld spot welder is a high-efficiency, convenient, and easy-to-carry welding tool that adopts dual-pulse spot welding technology to ensure more stable and reliable welds and also features a power bank function. It is equipped with a 2.4-inch high-definition display screen for intuitive and clearoperation, and a rotary encoder knob for parameter adjustment, allowing users to easily and accurately set welding parameters, thereby enhancing the user experience.   Features 1200A High-Current Output for Powerful Welding: Delivers up to 1200A peak current for strong and consistent welds across various materials. Dual-Pulse Welding Technology for Stable Results: Uses a primary pulse to remove oxide and a secondary pulse for cleaner, more reliable welds. Wide Material Compatibility (0.1–0.5mm Range)Supports multiple materials including: Nickel-plated steel (max 0.4mm) Steel (max 0.5mm) Pure nickel (max 0.25mm) Iron (max 0.3mm) Copper & nickel-plated copper (max 0.1mm) 10,000+ Ultra-Fine Adjustment Levels: Provides precise power control to match different welding needs and materials. Fully Adjustable Welding Parameters: Allows flexible control of preheat, pulse, interval, and continuous welding points. 2.4” TFT Color Display with Real-Time Data: Shows voltage, temperature, and welding parameters clearly for easy monitoring. Rotary Knob Control for Precision Tuning: Enables fast and accurate parameter adjustments with intuitive operation. Dual A-Grade 5000mAh Battery Cells: Ensures high power output, longer runtime, and stable performance. Up to 1,500 Welding Cycles per Charge: Supports extended usage for both professional and DIY applications. 2-in-1 Spot Welder & Power Bank: Functions as both a welding tool and a 5V/2.1A USB power source. Fast Type-C Charging (5V/2.1A): Provides efficient recharging for minimal downtime. Detachable Pure Copper Welding Pens: Uses 99.9% copper tips for high conductivity, durability, and heat dissipation. Compact and Portable Design: Lightweight handheld form factor for easy carrying and on-site work. 8-in-1 Smart Safety Protection System: Integrates over-temp, undervoltage, overcharge, over-discharge, short-circuit, voltage stabilization, low-temp, and impact protection for safe and reliable operation. Adjustable Auto Shutdown (0–99 Minutes): Automatically powers off to save energy and enhance safety. USB-C Firmware Upgrade Support: Allows future updates and performance improvements. Versatile Application Scenarios: Ideal for battery pack building, e-bike repair, phone battery replacement, and DIY projects. Specifications Battery Capacity: 5000mAh Charging: 5V / 2.1A Discharging: 5V / 2.1A Welding Materials: Nickel, Iron, Stainless Steel Welding Thickness: 0.1‒0.5 mm Max Welding Current: 1200A Level: 4 Preset Combination Levels   Package List: ◉ SWM-20 Host◉ Welding Pens◉ Replacement Tips◉ USB-C Cable◉ Nickel Strip◉ User Manual