Battery Electric Vehicle (BEV) is the name given to vehicles that run exclusively on battery power. Electric vehicles contain at least one electric motor as an energy converter and an electrically rechargeable energy storage system that can be charged externally – the battery. In addition to external charging, the battery can store and use recovered braking energy. In contrast to the purely electrically operated BEV, vehicles with Plug-In Hybrids (PHEV) combine the electric motor with another drivetrain.