 Ordinarily, the Volt charged while at home overnight (plug-in hybrid-mode) through a charging port.A full charge reportedly takes 10-12 hours from a standard North American 120 V, 15 A household outlet, or 4 hours from a 240 V 15 A SAE J1772 electrical vehicle supply.The Refreshed 2016 Volt featured a 1.5L I4 engine generator that runs on regular, rather than premium gasoline, and an upgraded battery pack giving about 52 miles per charge vs. the 1st generation's 41 .