So you will find that your mobile phone supports 40W or 65W fast charging, but once you change the charging head, you can only use 18W PD fast charging; and when you go out to use the power bank, you obviously use the original mobile phone. The charger can be fully charged in half an hour, but it takes about two hours to use the same fast charging power bank. This is a pot that the third-party fast charging protocol is incompatible with the mobile phone .
