Based in Humen, Greater Bay Area, QS (Qiushang Technology) has focused on safe low-voltage high-current connections for 20 years.We spent a decade on full-chain R&D for our high-current connectors & ultra-flexible silicone wires. Our products adopt patented anti-spark design and crown-spring terminals, supporting stable power lithium battery connection.Our QS13~QS15 models support 300A-500A high current, waterproof, anti-vibration, with signal pin, anti-reverse and anti-loosening features, well accepted in drone and power industries.We keep innovating to solve all kinds of electrical connection problems.