Portable charging devices for electric vehicle owners are among the key solutions for efficient, safe, continuous, and emergency energy use, enabling electric vehicles to function as both continuous power sources and loads. This paper discusses a four-port converter that performs energy conversion for loads, distributed power sources for EVs, and AC and DC microgrids for household distribution. The converter is designed with a structure aimed at connecting energy between main EV devices and distributed sources in the distribution grid using bidirectional energy conversion principles and voltage step-up/step-down for each independent operating mode. The converter performs with high efficiency of over 96% with a conversion capacity of 5kW and with simple control as described in the laboratory simulation results.