Charging cable and adapter for electrically charging a stored energy source at an energy supply device

The invention relates to a charging cable (1), in particular for electrically charging an electric vehicle, comprising a charging line (3), which can be detachably electrically connected at one end, by means of a connection device (4), to a stored energy source to be charged and is electrically connected at the other end to an adapter interface (5), which can be interlockingly detachably connected to an adapter (2), which adapter (2) can be detachably electrically connected to an energy supply device in order to transfer electrical energy from the energy supply device via the charging cable (1) to the stored energy source to be charged. According to the invention, in order to achieve a particularly compact and robust charging cable, the adapter interface (5) has a communication device, which enables wireless communication with the adapter (2), which has a corresponding communication device, when the adapter (2) is connected to the adapter interface (5), such that control signals can be wirelessly transferred between the energy supply device on one side and electronics of the charging cable (1) and/or of a stored energy source connected to the charging cable (1) on the other side, between the adapter (2) and the adapter interface (5). The invention further relates to an adapter (2) for a charging cable (1), which adapter can be interlockingly detachably connected to an adapter interface (5) of the charging cable (1) on one side and can be detachably electrically connected to an energy supply device on the other side in order to transfer electrical energy from the energy supply device via the adapter (2) to the charging cable (1). The invention further relates to a method for electrically charging a stored energy source at an energy supply device, by means of a charging device having a charging line (3), which is detachably electrically connected at one end, by means of a connection device (4), to the stored energy source to be charged and is detachably electrically connected at the other end to the energy supply device via an adapter (2) interlockingly detachably connected to an adapter interface (5).