It is not mandatory, but it is highly recommended that you connect the vehicle to the charging station after you finish driving it. This way, the next user can also enjoy a fully charged vehicle.
You can find the charging cable in the trunk of each of our vehicles. The charging process is very simple - just connect the cable to both the charging station and the vehicle, and then scan the QR code on the charging station using your phone.
The charging procedure: https://youtu.be/L70S-_Tg440?si=5Sk7INtRRfqox7i4