Patent ID: 7688037

Claim:
A charging control apparatus of a mobile terminal, comprising: a battery; an external port connector operatively coupled to plural ports configured to be operatively coupled to corresponding plural power sources, the external port configured to receive power from one power source of the plural power sources through a corresponding port; a voltage detector configured to detect a voltage inputted from the one power source, and a voltage of the battery; a microcontroller configured to perform operations comprising: determining the port to which the one power source is operatively coupled, through which the external port connector receives power, causing a charging unit to provide charging currents to charge the battery, establishing two or more stages to provide charging currents, changing the charging currents provided to the battery, wherein a charging current at a first stage is based on the detected input voltage received from the determined port and a charging current at a second stage is based on the detected battery voltage of the battery being charged; and the charging unit operatively coupled to the microcontroller configured to control a charging of the battery according to the charging current changed by the microcontroller.