PROTECTION COVER OF BATTERY BOX OF ELECTRIC VEHICLE

An electric vehicle includes a frame unit and a vehicle body cover unit. The frame unit includes tread tubes extending toward a rear side of a vehicle body and arranged pairwise as a left tread tube and a right tread tube. The vehicle body cover unit includes a tread board that shields the left and right tread tubes. The frame unit receives a battery box that receives and holds therein a battery and has two sides provided with support shafts to be pivotally supported thereon. The battery box is shaft-supported by the support shafts on the frame unit. The battery box includes a battery access opening, which is provided with a protection cover that covers and closes the battery access opening. The battery is securely held in the battery box without being moved by inertial forces. Dust resistance of the battery box can be improved.