An electric power converter device for charging a battery in a vehicle may include a power factor converter, a DC-to-DC converter, and a bypass switch. The power factor converter receives a DC power from a power source and increases a voltage level of the DC power. The DC-to-DC converter is operable to decrease the voltage of the DC power from the power factor converter. The bypass switch is operable to electrically couple a power output device to one of the power factor converter or the DC-to-DC converter such that the electrical power provided by the power output device to the battery is based on one of a voltage output of the power factor converter or a voltage output of the DC-to-DC converter.