The fan of the Xiaomi wireless charger 30w is not always rotating. When wireless charging is started using the charger, the fan automatically starts to cool the device and ensure efficient charging performance. Once the device is charged, the fan will continue to work, but when the device is charged or removed, the fan will stop to save energy. Therefore, the fan does not rotate all the time, but automatically starts and stops according to the charging state, ensuring the efficient performance and energy saving and environmental protection of the charger.