External storage device, and remaining battery amount notifying method in the same

A remaining battery amount notifying method for a device in an information processing apparatus which communicates data with the device, comprising:

• transmitting a notifying method for information about a remaining amount of a battery to the device;
• receiving, from the device, information about the remaining amount of the battery acquired in the device on the basis of the transmitted notifying method;
• and
• notifying the device of information about the received remaining amount of the battery on the basis of the notifying method for the information about the remaining amount of the battery.

A battery information notifying system which notifies an information processing apparatus serving as a host device of information about a battery of an external device, wherein

• the information processing apparatus comprises:
• transmission means for transmitting, to the external device, setting information representing a notifying method for information about a remaining amount of a battery of the external device, and a remaining amount of the battery at which a warning is generated,
• the external device comprises:
• a battery which supplies power to a communication section which communicates with a plurality of information processing apparatuses;
• means for detecting a remaining amount of said battery;
• means for storing setting information transmitted from the information processing apparatus;
• and
• means for notifying the host device of information about the remaining amount of said battery detected by said detection means, on the basis of the setting information stored in said storage means, and
• the information processing apparatus further comprises:
• means for receiving the information about the remaining amount of said battery from the external device;
• and
• means for exhibiting the received information about the remaining amount of said battery on the basis of the notifying method for the information about the remaining amount of said battery represented by the setting information.

An external storage device comprising:

• a battery which supplies power to a communication section which communicates with an information processing apparatus;
• means for detecting a remaining amount of said battery;
• means for storing setting information representing a notifying method for information about a remaining amount of said battery transmitted from the information processing apparatus, and a remaining amount of said battery at which a warning is generated;
• and
• means for notifying the information processing apparatus of information about the remaining amount of said battery detected by said detection means on the basis of the setting information stored in said storage means.