A vehicle, comprising: a power storage device configured to be rechargeable; an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device; a charging mechanism configured to supply electric power output from a power source outside said vehicle to said power storage device; and a controller (48, 48A) configured to control state of charge of said power storage device when said power storage device is charged; said controller (48, 48A) including: a state estimating unit configured to calculate an index value indicating said state of charge, and characterized by a setting unit configured to increase an upper limit value of said index value when prescribed condition related to deterioration of said power storage device due to at least one of age of service of said power storage device and travel distance of said vehicle for age of service of said power storage device is satisfied; wherein said setting unit is capable of switching between a first mode taking a prescribed value for an upper limit of said index value and a second mode allowing adjustment of said upper limit value, and increases said upper limit value to the extent that said upper limit value is lower than said prescribed value, in said second mode the vehicle further comprising: a command generating unit configured to switch between generation of a command to extend age of service of said power storage device and stopping of generation of said command, by a manual operation, wherein said setting unit selects said second mode from said first and second modes when said command generating unit generates said command, and selects said first mode from said first and second modes when said command generating unit stops generation of said command, and wherein said prescribed condition is satisfied at least one of every time the age of service of said power storage device attains prescribed years and every time travel distance of said vehicle for age of service of the power storage device reaches a prescribed distance. a power storage device configured to be rechargeable; an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device; a charging mechanism configured to supply electric power output from a power source outside said vehicle to said power storage device; and a controller (48, 48A) configured to control state of charge of said power storage device when said power storage device is charged; said controller (48, 48A) including: a state estimating unit configured to calculate an index value indicating said state of charge, and characterized by a setting unit configured to increase an upper limit value of said index value when prescribed condition related to deterioration of said power storage device due to at least one of age of service of said power storage device and travel distance of said vehicle for age of service of said power storage device is satisfied; wherein a state estimating unit configured to calculate an index value indicating said state of charge, and characterized by a setting unit configured to increase an upper limit value of said index value when prescribed condition related to deterioration of said power storage device due to at least one of age of service of said power storage device and travel distance of said vehicle for age of service of said power storage device is satisfied; wherein said setting unit is capable of switching between a first mode taking a prescribed value for an upper limit of said index value and a second mode allowing adjustment of said upper limit value, and increases said upper limit value to the extent that said upper limit value is lower than said prescribed value, in said second mode the vehicle further comprising: a command generating unit configured to switch between generation of a command to extend age of service of said power storage device and stopping of generation of said command, by a manual operation, wherein said setting unit selects said second mode from said first and second modes when said command generating unit generates said command, and selects said first mode from said first and second modes when said command generating unit stops generation of said command, and wherein said prescribed condition is satisfied at least one of every time the age of service of said power storage device attains prescribed years and every time travel distance of said vehicle for age of service of the power storage device reaches a prescribed distance.