Efficient welding tool for 18650 battery packs. This handheld spot welder is designed specifically for 18650 cells, featuring a builtin switch and an automatic trigger for precise, easy operation. Onehanded operation with builtin travel switch. No foot pedal is required, greatly improving work efficiency. The penstyle grip allows the palm to contact a large area of the battery, reducing hand fatigue during extended use and making it suitable for batch production. Integrated spot welding pen, not a standalone unit. This pen must be connected to a spot welding machine and cannot be used by itself. Independent extension and balanced pressure with dual springs. Each welding pen extends independently and the force is controlled moderately. The dualspring design provides independent extension and retraction to balance pressure, improving weld quality and overall productivity. Internal extension further supports reliable performance in batch spot welding production. 23 use scenarios Building and assembling 18650 battery packs for power tools, consumer electronics, or portable power banks. Massproducing 18650 packs for electric bicycles, scooters, or other electric vehicles. , refurbishment, or prototype testing of battery packs that require consistent, repeatable spot welds. Key attributes at a glance Target application: 18650 battery welding Operation: Handheld, penstyle grip, onehanded use Trigger: Builtin switch with automatic trigger Foot pedal: Not required (travel switch included) Compatibility: Requires connection to a spot welding machine (not standalone) Mechanical design: Dualspring, independently extended welding needles for balanced pressure Suitability: Optimized for batch production and longduration use