An electric vehicle comprises an electric motor which rotates a wheel; a battery which is an electric power supply unit for the electric motor; and a battery accommodating space which is provided in a vehicle body and accommodates the battery therein; wherein the battery accommodating space includes a first accommodating section which stores a standard battery pack including a first battery as the battery, and a second accommodating section which accommodates an optional battery pack including a second battery as the battery such that the optional battery pack is removable from the vehicle body, and wherein a voltage of the first battery is a value corresponding to an activation voltage of the electric motor, and the electric vehicle is capable of driving with an electric power supplied from at least the first battery.