Apparatus and method for providing electrical energy in a vehicle

An apparatus for providing electrical energy in a vehicle, the apparatus comprising:

• a main energy store for storing electrical energy;
• an additional energy store for additionally storing electrical energy, which additional energy store is switchable over by the main energy store;
• an apparatus connection for connecting at least one electrical component to the apparatus;
• a main switch for supplying the apparatus connection with a voltage provided by the main energy store;
• an additional switch for supplying the apparatus connection with a voltage provided by the additional energy store;
• and
• a control device for switching the main switch and the additional switch over between a first switching state and a second switching state,
• wherein, in the first switching state, the apparatus connection is supplied with the voltage provided by the main energy store, while the additional energy store is disconnected from the apparatus connection, and,
• wherein, in the second switching state, the apparatus connection is supplied with the voltage provided by the additional energy store, while the main energy store is disconnected from the apparatus connection.