| 摘要 |
PURPOSE: A portable system is provided to allow for convenience of charging operation by permitting the charger of a single portable system to charge other portable devices. CONSTITUTION: A portable system comprises a charging device for charging the battery of the portable system; and a connection device for connecting the battery of the portable device and the charging device. The charging device includes a charger(140) for supplying charging voltage; a charging control unit for perceiving type of the portable device and outputting a control signal for adjusting output voltage, when the portable device is connected to the connection device; and a charging voltage adjustment unit for adjusting charging voltage of the charger in accordance with the control signal output from the charging control unit and supplying the adjusted charging voltage to the portable device.
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