Photovoltaic powered system with adaptive power control and method of operating the same

A photovoltaic powered system with an adaptive power control and a method of operating the same. A photovoltaic panel (10) is provided to generate electric power to supply a load (50). The photovoltaic powered system includes a charging control unit (20), a rechargeable battery unit (30), a first switch unit (Sw1), a second switch unit (Sw2), a power condition unit (40), and a switch control unit (60). The switch control unit (60) turns on the first switch unit (Sw1) and turns off the second switch unit (Sw2) when the photovoltaic panel (10) can generate the electric power, thus supplying the load (50) and charging the rechargeable battery unit (30), respectively. The switch control unit (60) turns off the first switch unit (Sw1) and turns on the second switch unit (Sw2) when the photovoltaic panel (10) cannot generate the electric power, thus providing energy stored in the rechargeable battery unit (30) to supply the load (50).