The Mi Mix 4 uses 100W wireless charging technology, but the reason it is displayed as 50W May be to protect battery health and extend service life. High power wireless charging generates a large amount of heat, which may cause damage to the battery. Therefore, in order to balance the relationship between fast charging and battery life, manufacturers may choose to limit wireless charging power to ensure the safety and stability of the battery.
Doing so can improve the charging efficiency, while reducing the heat generation of the battery and extending the life of the battery.
Mi mix4 uses 100W wireless fast charge technology, but due to the energy loss of wireless charging itself, the 100W output of the charger can not be fully transmitted to the phone.
In addition, the phone's own charging management system will also adjust the charging power according to factors such as battery status and temperature to ensure charging safety and battery life. Therefore, although the charger output power is 100W, the charging power shown on the phone is 50W is normal.