Abstract: A method for charging a high-voltage battery of an electric vehicle, comprising: providing the high-voltage battery having a nominal battery voltage; providing a charging station outputting a DC charging voltage; selectively pre-charging a second charging terminal of the charging station to a predetermined pre-charge voltage using a controllably limited pre-charge current supplied by electric power from the high-voltage battery.

Abstract: A charging system for an electrical vehicle, the charging system including: a storage unit designed for the supply of electrical energy via two supply terminals, wherein the storage unit includes a store including two terminals disconnectably connected to the two supply terminals via a second disconnection switch and a third disconnection switch; a voltage converter unit designed as a construction unit which is separate from the storage unit and which is connected to the storage unit via three terminals, wherein in a connected state, within the storage unit, two of the three terminals are connected to the two terminals of the store, and a third of the three terminals is connected to one of the two supply terminals, and within the voltage converter unit the third of the three terminals of the voltage converter unit leads via a first disconnection switch.

Abstract: The invention relates to a charging device (100) for charging an electrical stored energy source (60) of an electrically operable vehicle (200), said charging device comprising: a charging connection (50) for electrically connecting the charging device (100) to an external voltage supply; a charging unit (10) for converting a first DC voltage applied to the charging connection (50) into a second DC voltage which is provided for charging the electrical stored energy source (60); and a power distributor unit (30) having a first and a second output (36, 38) for providing the first DC voltage applied to the charging connection (50) and/or the second DC voltage converted by the charging unit (10) to the electrical stored energy source (60) connected to the outputs (36, 38). The power distributor unit (30) has: a first electrical connection (52) for the charging connection (50); and a second electrical connection (56) for the charging unit (10).

Abstract: A method for charging a high-voltage battery of an electric vehicle, comprising: providing the high-voltage battery having a nominal battery voltage; providing a charging station outputting a DC charging voltage less than the nominal battery voltage; draining current between a first battery terminal and a protective earth terminal such that the voltage between the first battery terminal and the protective earth terminal essentially matches with the voltage between a first charging terminal and the protective earth terminal, and boosting the voltage at a second charging terminal of the charging station to match the charging voltage with the nominal battery voltage.

Abstract: A method for charging a high-voltage battery of an electric vehicle, comprising: providing the high-voltage battery having a nominal battery voltage; providing a charging station outputting a DC charging voltage; selectively pre-charging a second charging terminal of the charging station to a predetermined pre-charge voltage using a controllably limited pre-charge current supplied by electric power from the high-voltage battery.

Abstract: A method for charging a high-voltage battery of an electric vehicle, comprising: providing the high-voltage battery having a nominal battery voltage; providing a charging station outputting a DC charging voltage less than the nominal battery voltage; draining current between a first battery terminal and a protective earth terminal such that the voltage between the first battery terminal and the protective earth terminal essentially matches with the voltage between a first charging terminal and the protective earth terminal, and boosting the voltage at a second charging terminal of the charging station to match the charging voltage with the nominal battery voltage.