BATTERY SYSTEM FOR A MOTOR VEHICLE, AND MOTOR VEHICLE WITH A REPLACEABLE BATTERY

The invention relates to a battery system () for a motor vehicle (), comprising: a battery () for providing electrical energy for the motor vehicle (), the battery having a first converter () for converting a direct current of the battery () into an alternating current and a first coil () for producing an alternating magnetic field for transmitting energy to the motor vehicle (); and a second coil () for receiving energy from the first coil (), which second coil can be arranged on the motor vehicle () and can be electrically coupled to a vehicle electrical system () of the motor vehicle (). The first coil () is wound around a first coil core () and the second coil () is wound around a second coil core (), the first coil core () having a first contact region () for mechanically coupling to a second contact region () of the second coil core () in order to produce a joint coil core. The invention further relates to a motor vehicle ().