ELECTRIFIED VEHICLE AND POWER SOURCE MANAGEMENT METHOD THEREFOR

An electrified vehicle capable of additionally mounting a swappable battery and a power source management method for the same are provided. A method of power source management of an electrified vehicle is provided, comprising connecting a swappable battery unit to a connector in an electrified vehicle comprising a first battery fixedly arranged with a main battery unit, a first battery management system configured to control the first battery, and a DC converter having a first end and a second end, the swappable battery unit comprises a second battery, and a second battery management system configured to control the second battery. The method further comprises determining, using a vehicle control unit, a target integrated voltage to be supplied to a power electric unit, and transmitting, using the vehicle control unit, a voltage command corresponding to a target output voltage to the DC converter, according to a determined target integrated voltage.