Electronic endoscope system

An electronic endoscope system including an electronic endoscope provided with an image pickup device for photographing a region to be inspected within a body cavity, a processor unit for generating an endoscopic image using said image pickup signal outputted from said image pickup device, and an endoscope monitor for displaying said endoscopic image, said electronic endoscope system comprising:

• A. said electronic endoscope including:
• a battery for supplying electrical power;
• a storage device for storing a relation between discharge voltage and discharge time of said battery;
• a discharge voltage measuring device for measuring the discharge voltage of said battery;
• a time-measuring device for measuring a period of time for which said battery is used;
• a remaining available time estimating device for estimating remaining available time for said battery, said remaining available time estimating device performing the estimation based on the relation between the discharge voltage and discharge time of said battery that is stored in said storage device, the result of the measured discharge voltage obtained by said discharge voltage measuring device, and the result of the measured time obtained by said time-measuring device;
• and
• a transmission device for transmitting the result of the estimated time obtained by said remaining available time estimating device to said processor unit,
• B. said processor unit including:
• a receiving device for receiving the result of the estimated time obtained by said remaining available time estimating device transmitted from said transmission device;
• and
• a display controlling device for controlling display of said monitor, said display controlling device being configured to display remaining amount information indicating remaining available time for said battery based on the result of the estimated time obtained by said remaining available time estimating device on said monitor.