Each batch of cells undergoes strict visual inspection, voltage/internal resistance testing, and capacity grading to ensure consistent performance within the same module.
Laser welding delivers high weld strength (controllable penetration & dense nugget), a small HAZ (minimal thermal impact), and minimal distortion (non-contact, high-speed). After welding, We 100% non-destructively pull-test each weld point: a dedicated fixture applies a standard upward force to verify weld strength.
Modules are placed into the enclosure, the BMS is installed, Series and parallel connection completed, and the enclosure cover is sealed.
Each PACK must pass insulation/withstand voltage testing, air tightness testing, and EOL testing before leaving the factory, ensuring electrical safety, protection rating, and functional integrity.
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