Plug-in hybrid electric vehicles (PHEVs) use batteries to power an electric motor and another fuel, such as gasoline, to power an internal combustion engine (ICE). PHEV batteries can be charged using a wall outlet or charging equipment, by the ICE.

Formula E, an all-electric racing competition, is pioneering technology that could find its way into vehicles at a charging station near you.

Machine learning shows that even existing batteries can charge safely and speedily if you treat them right. Vastly shorter charge times could arrive to consumers within the next five years.