Patent ID: 9577430
Date: 2017-02-21
CPC Classifications: H01L,H02J,H04B,Y02B,Y04S

Claim:
1. An electronic device including a display screen, comprising: an external power supply unit configured to receive power from an external power source; an auxiliary power storage unit configured to be charged upon receiving the power from the external power supply unit and store the power; a first switching element connected to the external power supply unit and the auxiliary power storage unit and configured to select any one power unit of the external power supply unit and the auxiliary power storage unit as a power source; a power information receiver configured to receive power information including at least one of electric rate information and power demand information; a controller configured to control the first switching element based on the power information received from the power information receiver; and a display configured to provide a popup window having an alarm message on the display screen, wherein the alarm message provides two kinds of information together within the popup window, the two kinds of information including first information that indicates the selected power unit by the first switching element, and second information that indicates whether the auxiliary power storage unit is being charged or not based on the selected power supply unit and the received power information, and wherein the alarm message is provided with at least one of four message types including: