The charging session will usually end once the vehicle is fully charged.
Take caution: However, some providers have a price structure that charges you per minute. That means, even after your car is fully charged, you will have to pay the minute-price (often considered a "cost for parking"). Please consider this before parking your car for a long time.
We would ask you to remove your vehicle once charging is done so that it can be freed-up for the next driver.