Patent ID: 6509717
Filing Date: 2003-01-21
Classification: G06F,H01M,H02J,Y02E

Abstract:
In an apparatus for connecting a battery to a portable computer system, a secondary battery connection apparatus for a portable computer system, comprising:a primary smart battery and a secondary smart battery each respectively having a first connector and a second connector installed at an exterior thereof for connecting the secondary smart battery to the primary smart battery; a smart battery selecting unit for selecting the primary smart battery or the secondary smart battery and controlling the selected battery so as to supply power to a portable computer system; a system power supply unit for being supplied power from the primary or secondary smart battery selected by the smart battery selecting unit and supplying power appropriate for operating the portable computer system; a SM BUS (System Management Bus) host for checking operation states or operation information of both the primary and secondary smart batteries and requesting a charge state of each smart battery; an AC/DC adapter for being supplied AC power from an external AC power source and outputting DC power; and a charging unit for being supplied the DC power from the AC/DC adapter and supplying changing power to the primary smart battery or the secondary smart battery.