Abstract: A battery arrangement for a motor vehicle includes a first electrical energy store, a second electrical energy store, a charging connection, and a supply connection. The arrangement further includes first through seventh switches. The battery arrangement is switchable into four operating states via respective opening and closing of the first through seventh switches.

Abstract: An energy storage device for a motor vehicle includes a first energy store and a second energy store for storing electrical energy, a charging connection for charging the energy stores, an operating connection for operating a load on the energy storage device, and a switching device which has a plurality of switching elements and via which the energy stores can be connected selectively in series or in parallel. A fifth switching element of the switching device is permanently electrically coupled to the electrical poles of opposite polarity of the energy stores and the energy stores can be connected in series via the fifth switching element independently of the other switching elements of the switching device.

Abstract: An energy storage device for a motor vehicle includes a first energy store and a second energy store for storing electrical energy, a charging connection for charging the energy stores, an operating connection for operating a load on the energy storage device, and a switching device which has a plurality of switching elements and via which the energy stores can be connected selectively in series or in parallel. A fifth switching element of the switching device is permanently electrically coupled to the electrical poles of opposite polarity of the energy stores and the energy stores can be connected in series via the fifth switching element independently of the other switching elements of the switching device.

Abstract: The object of the invention is to realize a battery arrangement (10) in accordance with the provisions for high-voltage safety.