Why does the REDMI Note 14 Pro+ 5G experience significant heating when using fast charging in screen-off standby mode?

The REDMI Note 14 Pro+ 5G is equipped with industry-leading 120W fast charging technology, which provides a very high charging speed. When fast charging mode is enabled, some heating is normal. The temperature increase stays within safe limits, so you can use the device with confidence.
If you find the heating experience unsatisfactory, you can try going to [Settings] >> [Battery] >> [Charging options] >> [Wired charging mode] and choosing [Standard] to improve the temperature experience.
Additionally, it is recommended to place your phone in an open area while charging, avoiding contact with fabrics like clothes or blankets, to ensure better heat dissipation and effectively lower the temperature.