Three-stage pulse welding technology ensures precise and consistent spot welds for superior battery connections. Adjustable 99-gear settings provide unmatched control over welding intensity for various lithium battery types. High-quality Farad capacitors (6.5V-16V) deliver stable power output and extended machine lifespan. Premium 18650 lithium battery compatibility caters to professional battery pack assembly needs. Industrial-grade aluminum alloy housing with heat dissipation design ensures durability during prolonged use. Precision-engineered copper welding tips minimize resistance for cleaner welds. Ideal for DIY power banks, electric vehicle battery repairs, and industrial energy storage solutions. Ergonomic non-slip handle and compact design enable comfortable operation in workshop environments. Advanced circuit protection system prevents overcurrent and short-circuit damage. Compatible with multiple battery configurations including series and parallel connections.