Answer: airpods pro is not recommended to use 20w fast charge. In general, in order to charge fast, the use of 20w fast charge can achieve the effect of fast charging, there is no harm to the battery, just connect the charging bin and the charger can be charged, and disconnect the charger after full charge. However, it is best not to use 20w fast charge, because airpods pro Bluetooth earphones are small current devices, and the battery capacity is small without the meaning of fast charge, and the use of 20w fast charge airpods pro earphones can not play the maximum power.
This device does not support fast charging, but because it is the earphone that the charging power is already very high