We start by calibrating the car and charger combination the moment you connect the car to the charging station. We do this to better estimate how much time we need to reach the desired charge level. This allows us to even better optimize your session.
Furthermore, the default settings of most cars and charging stations are such that charging starts immediately when you plug in. Since we cannot manage charging immediately because we first have to connect to the car, it is possible that the car charges briefly after you plug it in. If prices are high we stop charging as soon as possible.