Not sure if this is documented somewhere. I have been out of HK for a few days and left the car in the car park with 13A cable connected. It first charged to full and stopped charging a few days ago, but soon started vampire drain at a rate abt 15km/day (I had power saving mode off). When I woke up today and checked the status again through mobile app, the car obviously automatically resumed charging and is now full again. Found this interesting to share with the group.