Abstract: The present invention relates to a method, a charge controller, a charger and charging system for charging a battery of an electric vehicle, which can include a) determining a priority for each port where an electric vehicle is connected, b) assigning a maximum available power budget to a port with first priority, c) performing a charge session at the port with the first priority, d) monitoring actual power delivered to the vehicle from the priority port, e) adjusting the power budget value of the priority port depending on the actual power delivered to the vehicle and f) assigning a remaining portion of the power budget to the port with the second highest priority, g) if the power budget exceeds a predetermined threshold value, starting or restarting a charge session at the port where the remaining portion of the power budget is assigned, and h) repeating steps e-h.