Chongqing Sourcing Guide - EV and Auto Electronics

1) Zone Map

LFP and NMC batteries, CATL cells, and pre-assembly pack lines.

Refurbished ECU, TCU, and BCM modules with bench and VIN tools.

Automotive MCU and SoC, PMIC, and AEC-Q100 qualified components.

High-voltage cables, connectors, harnesses, and 800V safety accessories.

Lot validation: part reference, date code, and supplier certificate.
Performance check: battery internal resistance, measured capacity, and nominal voltage.
Visual control: solder quality, corrosion, rework traces, and worn connectors.
Software check: ECU DTC logs, bench test, and error traceability.
Shipping compliance: UN38.3 packaging, dangerous goods labels, and insurance readiness.

Luc tip: reject LFP lots when cell-to-cell voltage spread is above 25mV in the same batch.

Full traceability, near-new performance, and very low return risk.

Balanced price and performance for regular B2B volume.

Aggressive pricing with higher after-sales and return risk.

Simple rule: if a vendor refuses document and functional testing, move to the next stand.

Luc can secure supplier selection, negotiation, and pre-shipment verification.

Contact Luc