Charging apparatus having backup function

A charging apparatus having a backup function, comprising:

• a first connecting interface, adapted to receive a power source;
• a second connecting interface, electrically connected to the first connecting interface for transmitting the power source;
• a processing unit, electrically connected to the second connecting interface;
• a memory unit, electrically connected to the processing unit;
• wherein the processing unit determines whether the second connecting interface is connected to a first electronic device;
• wherein when the second connecting interface is connected to the first electronic device, the processing unit activates the backup function to back up data stored on the first electronic device into the memory unit or to restore data stored on the memory unit into the first electronic device, and the first electronic device is simultaneously charged;
• a third connecting interface, electrically connected to the first connecting interface for transmitting the power source, and electrically connected to the processing unit;
• wherein the third connecting interface is adapted to be connected to an external memory device;
• wherein when the processing unit activates the backup function, the processing unit backs up the data stored on the first electronic device into the external memory device through the third connecting interface, or the external memory device through the third connecting interface and the memory unit, or the processing unit restores the data stored on the memory unit or the external memory device into the first electronic device.