Siemens has developed a wireless gas station for electric cars, which works on the principle of transformer and can recharge the battery via the power winding mounted on the road and the bottom of the car. The device uses a known effect of magnetic induction charging electricity can be parked, specially equipped with similar devices. The frequency and voltage given on the primary winding is not disclosed, it is only known that the magnetic field generated does not exceed the recommended amount for human health (6.25 Microtesla). Precise positioning of windings the primary winding of the PETROL STATION and car energy transfer ratio reaches 90%. In may, Siemens will conduct testing of a prototype wireless PETROL STATION with a capacity of 3.6 kW, and in June will begin Street tests on roads in Berlin as part of a large-scale project on the development of urban infrastructure transport and handling. Until now, the main way of charging electric vehicles remains their connection to the power source via a cable, that principle preach all produced electric cars and modern hybrids with plug in. it should be reminded that at the end of March in Paris began testing the upgraded Toyota Prius with such technology.