The charger model is MDY-08-ES, produced in Chenyang, Jiangsu Province, output 5V\/3A, 9V\/2A, 12V\/1.5A, maximum power 18W. The product model and specification are consistent with the charger of Mi 6. Whether it is QC4 charging or QC3.0 charger, the maximum charging power of the phone is not stable at 18W for a long time, of which the maximum power is about 16.7W when using the QC3.0 charger and about 15.5W when using the QC4 charger.