Relation with hybrid electric vehicles

Cars that make use of electrical power in conjunction with another means of propulsion (often an ICE powered by fossil fuel) are known as hybrid electric cars. Most hybrid cars are not considered pure electrical vehicles because they operate in a charge-sustaining mode. A hybrid vehicle that can operate purely on electrical power becomes an EV when it enters its charge-depleting mode. Hybrid vehicles that can charge their batteries from an external source in the same fashion as electric vehicles are called plug-in hybrid electric vehicles (PHEVs).