Of course, this is not safe, electric vehicles should be charged in the outdoor centralized charging shed is safer. Most of the charging time of electric vehicles should not exceed 5 hours, and the power should be cut off immediately at night to prevent excessive charging from affecting the battery heat and causing a fire. Your car is outside but the wires are inside in case the wires short. The danger is extremely high. Electric vehicles should be parked and charged in an independent area outside the building (such as a shed or garage), and a certain safe distance between the area and the adjacent building should be maintained
According to fire safety requirements, not safe. The reason is that the plugboard is dragged back and forth, and the internal line is easy to tear off the leakage of electricity, and it is also easy to fire.
Some people therefore charge indoors, which is still dangerous, because the battery explosion will present a splashing type of sparks, ignite the flammable inside, and will emit a large number of toxic smoke, causing a large number of casualties among the people.
It is best to go to the car shed with charging points or open charging points.