6+ years in battery QC
IEC 62619 · UL 1642 · UN 38.3
<0.3% outgoing defect rate
Liefeng leads YANCOPOW’s quality control from end to end — incoming cell inspection at the factory, BMS functional testing, capacity verification, thermal stability checks, and cell consistency screening. Every Luxwatt battery that ships has been through his process.
His specialty is the standards that matter to international buyers: IEC 62619, UN 38.3, UL 1642, and full CE/EMC compliance. He also manages pre-shipment QC photo reports — so you can see exactly what’s in your order before it leaves the warehouse. No surprises.
Biography
Every Luxwatt product passes through his hands before it reaches yours. Liefeng owns the QC process — from cell inspection to final packaging — and holds the line on IEC, UL, and UN 38.3 compliance.