ISO 9001:2015
VERIFIED ACTIVEQuality Management System Certification for Electrochemical Energy Products
♢ ZERO-DEFECT QUALITY ASSURANCEQuality Control &
Quality Control &
International Compliance
Every Strongna battery module undergoes 14 stringent testing stages including X-ray weld inspection, cell impedance sorting, continuous high-rate discharge burn-in, and IP67 immersion tests.
Globally Recognized. Independently Verified.
Our products and manufacturing processes comply with internationally recognized standards, validated by third-party certification bodies.
ISO 14001:2015
VERIFIED ACTIVEEnvironmental Management System for Low-Carbon Zero-Pollution Manufacturing
IATF 16949
VERIFIED ACTIVEAutomotive Quality Management Standard for Fleet & Motive Power Cells
UL 1973 & UL 9540A
VERIFIED ACTIVESafety Standard for Stationary Energy Storage Battery Systems & Thermal Runaway Test
UN 38.3 & MSDS
VERIFIED ACTIVELithium & Sodium Battery Safe Transport Certification by Sea, Air, and Land
CE & IEC 62619
VERIFIED ACTIVEEuropean Conformity & Industrial Secondary Lithium Cell Safety Directives
Strongna 100% Full-Inspection Factory Standard
No random sampling — every pack shipped is individually benchmarked
STAGE 01Cell Voltage &
IR Sorting
Cells sorted within ±1mV and ±0.1mΩ capacity buckets to prevent cell drift during lifespan.
STAGE 02Laser Weld
Depth X-Ray
Automated optical and X-ray inspection on nickel busbar welds to ensure zero micro-cracks.
STAGE 03BMS Short-Circuit
Test
Simulated hard short-circuit to verify BMS MOSFET response time is under 100 microseconds.
STAGE 0472-Hour Aging
Chamber
Thermal shock cycle (-20°C to +60°C) with full charge-discharge cycle telemetry recording.