Easy and convenient charging of electric cars is a desirable characteristic. Automatic cable-free conductivecharging from road surface to cars is a potential possibility for simplifying the everyday life for users ofelectric cars, as well as increasing the efficiency of taxis and car pools. Charging infrastructure for electriccars could utilize the recent development for electric road systems (ERS) in which electrical energy istransferred during movement from the road infrastructure to the vehicle for both propulsion and charging ofbattery. However, continued development must be done before it is feasible to implement automaticconductive cable-free charging of cars.