Ljublijana is full with charging stations. Most of them are free, it is only required to register online. Since there is free Wifi also almost anywhere in Lublijana this is also not a hard task.After we arrived in the late afternoon in Lublijana and checked in with our Airbnb host, we drove to the city, entered a parking lot, tried for about 10 minutes to get the charging (22 Kilowatt) going and managed eventually.
After a stroll through the city and a walk up to the old fortress the car was charged at 95%. I wish, it would be always that easy.