The plug-in hybrid and the hybrid vehicles can have several configurations but at least they have an electric motor ,an internal combustion engine (ICE) and a set of batteries. The internal combustion engine (ICE) is the one that develops more power. The electric motor is usually used in urban driving, at low speeds or as a complement to the internal combustion engine.
In the HEVs the batteries can be charged using the internal combustion engine or recovering the energy from braking. The plug-in hybrid vehicles can also be connected to the electricity net for charging their batteries. They have an enlarged electricity storage capacity, which allows the vehicle to drive on all-electric mode longer distances than the HEVs, without having the handicap of limited ranges that the BEV have, because when the battery is empty the vehicle runs with the ICE.