It is slow. I assume worst case at 7kW is 21 miles added per hour (3 miles/kWh). Perhaps the battery management system is playing safe, for the moment, as car is new? Have you a house smart meter with a power used display?Thanks I will. It was (according to the Connected Services data) consistently adding about 10% capacity / 15 miles range each hour - certainly a little less nearer the end. Pretty linear - but slow.