The end of the BYD charging port cover is designed with a Velcro that is tighter and more durable than a drawstring, so that the end opening can be closed tightly with the charger cable to avoid rain and snow being blown in.
In addition, you can use this Velcro to fold and bind the EV charger cover into a compact size, making it easy to store and carry, so that you can store it in the glove box when not in use
