| 摘要 |
An electronic device includes a power input unit through which power from an external power source can be input, a battery connector that is electrically connectable to a battery, a device connector that is electrically connectable to a removable external device, and a power controller that controls supply of power to the external device from the external power source and the battery. When the external device is connected to the connector, the power controller stops supplying power from the power input unit and supplies power from the battery to the external device, before supplying power from the external power source to the external device.
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