An electrical apparatus is provided including an electrical drive system and an electrical machine. The electrical machine includes a rotor, a first separate multi-phase stator winding and a second separate multi-phase stator winding. The drive system includes a first multi phase bridge inverter connected to the first multi-phase stator winding and which is adapted to be connected to a line voltage supply by a connection means when charging a battery. The apparatus further includes a second multi-phase bridge inverter connected to the second multi-phase stator winding and to the battery. A battery can be charged without the need of a specific charger and charging with galvanic isolation is provided.