It is recommended that you check the fan relay and water temperature control box. It is not normal to turn on the power fan when the cold car is started, and it is easy to lead to long-term loss of battery power affecting the life of the battery.
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This mainly depends on the connection between the tank fan and the engine. One type of water tank fan is directly driven by the pulley, that is, as long as the engine runs the fan will turn, the disadvantage of this design is that under low temperature conditions, the fan will also turn, which is not conducive to the engine quickly reaching the working temperature. The current mainstream design is electromagnetic fan, that is, only after the temperature of the engine reaches a certain degree, the fan will engage and start to operate, so when the car has just started, the fan does not turn is very normal. However, if the water temperature goes to the high temperature and the fan still does not turn, there is a problem and it needs to be repaired.
This situation is normal. It wouldn't be normal if it didn't. When the charger is working, the internal electronic devices will generate a lot of heat, and it needs the fan to rotate and discharge the heat to cool the charger. The fan is directly connected to the power supply. It works as soon as the charger is plugged in. If the fan does not turn, the heat cannot be discharged, and the charger is hot, it will burn the charger or even catch fire.
The small fan on the bracelet has been turning, and the score of charging will be affected after it has been turned, and the degree of the fan will continue to decrease and change after it has been affected.