How can one determine the quality of repair parts for new energy vehicles?

 　　How can one determine the quality of repair parts for new energy vehicles? The quality of repair parts directly impacts the safety, range, and service life of a vehicle after repair. Since the ‘three-electric system’ of new energy vehicles differs significantly from that of traditional fuel vehicles, quality cannot be judged solely based on appearance or price.

　　High-quality parts clearly specify compatible vehicle models, years, and system versions, and are seamlessly compatible with the original vehicle’s ECU communication protocols, preventing performance degradation or frequent fault codes caused by abnormal data interaction. Low-quality battery modules may cause reduced charging efficiency or battery life degradation due to inconsistent voltage platforms.

　　New energy vehicle parts often involve high-voltage circuits and high-temperature environments, so material selection must meet stringent standards. Take battery connection bars as an example: high-quality products use high-conductivity copper materials and insulating flame-retardant materials, capable of withstanding high currents without overheating or deformation, and featuring corrosion resistance and anti-aging properties.

　　The production of genuine parts must adhere to automotive-grade standards, with multiple inspection procedures from component processing to final assembly. The welding of battery pack casings must use laser welding or friction stir welding technology to prevent moisture ingress and battery cell short circuits.

　　Certification and traceability are key criteria for assessing accessory quality. Genuine accessories typically obtain automotive-grade quality management system certifications such as ISO/TS 16949 and include unique traceability codes, allowing consumers to verify production batches, test reports, and other information through brand official websites or third-party platforms.

　　Counterfeit products often lack certification marks, have simple packaging without detailed instructions, and may even misuse well-known brand logos. Consumers can verify authenticity by comparing information from official channels. Purchasing parts through authorised repair channels or brand-owned stores further reduces the risk of obtaining substandard products.


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