METHOD OF CONTROLLING A POWER TRANSFER SYSTEM AND POWER TRANSFER SYSTEM

A power transfer system which includes a power transfer device as well as at least one portable device, and to a method of controlling the power transfer system specifically in case of a dead battery condition of a battery of the portable device. The power transfer device for wireless charging of the battery arranged in the portable device and the power transfer device each comprise a near field communication functionality for data communication by a data communication link between the devices. The method includes a step of starting to establish the data communication link between the power transfer device and the portable device.