The invention relates to a battery retaining device, comprising a guide device which is designed to receive a vehicle battery; at least one retaining element which is designed to rigidly retain a vehicle battery received in the guide device in a mechanical manner up to a first maximum retaining force value in a first operating state and to rigidly retain the vehicle battery received in the guide device in a mechanical manner up to a second maximum retaining force value in a second operating state; and an actuator system with at least one actuator which is designed to bring the at least one retaining element from the first operating state to the second operating state.