I don't know what you're talking about happening in China, but I do know that there is often a discrepancy between the charging rate (in kW) displayed by the charging system and that displayed in the car. This difference is because the charger shows the total kW going to the vehicle while the car is only showing how many kW are going into the battery itself and this leaves out any kW being used by the car to heat the battery, run the environmental controls, etc. So, you often have the car showing that the battery is getting 5-10 kW less than the charger shows it's delivering because it's using the "shore power" to do more than just fill the battery. But this doesn't have anything to do with battery recalibration and battery range. Can you link to any discussion of the issue in China?