1. Check the placement of the charger: Ensure that the charger is placed in a stable and well ventilated area, avoiding close contact with walls or other objects to reduce vibration and noise.
2. Check the operation of the fan: If the fan inside the charger accumulates dust or is damaged, it may cause loud noise. Try cleaning the fan or contact after-sales service to check if it needs to be replaced.
3. Check power adapter and current: Confirm the compatibility between the charger and the electric vehicle battery. Mismatch or excessive current may also cause abnormal sound. If necessary, replace the officially recommended charger model.