NOVELTY - The vehicle (100) comprises a chargeable electric storage device (110), a charging device (200) that charges the electric storage device by using power from an external power source (500), and an ECU (300) that calculates a shortfall with respect to a charge power supplied to the electric storage device in case charging is performed at maximum supply power, based on maximum supply power that is able to be supplied to the electric storage device and based on actual charge power actually supplied to electric storage device, and stores information relating to casual factor for the shortfall.    USE - Vehicle that is chargeable using power from external power source. Uses include but are not limited to electric vehicle, hybrid vehicle and fuel cell vehicle.    ADVANTAGE - The factor for charging time extension in a vehicle that is chargeable using an external power source can be identified, thus, any feeling of uncertainty on the part of the user is dispelled, and the user can be prevented from making unnecessary complaints. Charging operation is completed in as short time as possible, since charging operation is performed at the maximum power that can be supplied by the external power source.    DETAILED DESCRIPTION - The casual factor for the shortfall includes a shortage of the charge power arising from limitation imposed on output power of the charging device to protect the charging device against overheating. The electric storage device includes a secondary battery such as lithium ion battery, or nickel hydride battery, a lead battery, or a cell of electric storage component such as electric double-layer capacitor. An INDEPENDENT CLAIM is also included for a method for controlling vehicle provided with electric storage device.    DESCRIPTION OF DRAWING(S) - The drawing shows the overall block diagram of a charging system including a vehicle.    Vehicle (100)    Electric storage device (110)    Charging device (200)    ECU (300)    External power source (500)