Plug-in hybrid electric vehicles (PHEVs) are hybrids with high-capacity batteries that can be charged by plugging them in. Although PHEVs do not have to be plugged in to be driven, they will not achieve optimal fuel consumption or maximum driving range without charging. For an accessible version of this video, please visit: www.nrcan.gc.ca/energy/efficiency/transportation/cars-light-trucks/buying/16221