it also allows the manufacturers to increase the price of their chargers. Dell uses the 1-Wire protocol to communicate with the charger, and [Xuan] sniffed the communication using a MSP430.
On some systems (e.g., Dell XPS or Vostro with USB-C chargers), the “slow charger” notification may come from Battery Saver rather than USB settings. That said, Windows 11 has multiple ways to ...