Abstract: An electric vehicle is disclosed. The battery unit of the electric vehicle comprises a stationary battery and a removable battery which needs to be exchanged at a battery exchange station. Temporary power shortage problems caused by power supply through a single stationary battery or a single removable battery are solved by power supply through each of or both of the stationary battery and the removable battery.

Abstract: An apparatus for the parallel connection and protection of batteries of an electric vehicle, which comprises a battery unit, a parallel load control and protection unit formed of two diodes connected in parallel, a chip protection unit having two ends thereof respectively electrically connected to the battery unit and the parallel load control and protection unit, and a capacitor unit having two ends thereof respectively electrically connected to the battery unit and the parallel load control and protection unit. The apparatus allows different types of batteries connected in parallel to be used jointly without affecting the characteristics and lifetime of the different batteries, thus can avoid the high cost problem of the conventional techniques caused by applying the battery management systems and prolong the lifetime of batteries and recycle residual electric energy to increase the cruise range of the electric vehicle.