We would like to clarify that the products we supplied are genuine EVE Grade A cells, supported by the corresponding test reports as evidence of their authenticity. Upon reviewing the video you provided, we did not observe any signs of bulging or expansion in the cells. Regarding the QR codes, please note that variations may occur across different batches. You mentioned comparing our batteries with EVE Grade A cells, but we kindly request substantiated evidence to support this claim. Additionally, the voltage of an uncharged battery typically measures around 2.7V, while a fully charged cell reaches approximately 3.2V. For traceability, each shipment is accompanied by a detailed report, including batch-specific QR codes and serial numbers. To further assist you, could you please provide: 1. The specific number corresponding to the scanned QR code. 2. The website or platform used for scanning. We remain committed to resolving this matter promptly and look forward to your response.