 The 2011 Chevrolet Volt has a 16 kWh / 45 A · h ( 10 @.@ 4 kWh usable ) lithium @-@ ion battery pack that can be charged by plugging the car into a 120 @-@ 240 VAC residential electrical outlet using the provided SAE J1772 @-@ compliant charging cord . No external charging station is required . The Volt is propelled by an electric motor with a peak output of 111 kW ( 149 hp ) delivering 273 lb · ft ( 370 N · m ) of torque . Capacity of the battery pack was increased to 16 @.@ 5 kWh ( 10 @.@ 9 kWh usable ) for 2013 models , which increased the all @-@ electric range from 35 to 38 mi ( 56 to 61 km ) . Other specifications remained the same . The battery pack capacity was increased to 17 @.@ 1 kWh for 2015 models . This incremental upgrade is likely to reflect in an improvement in range over previous model years , but as of July 2014 , the 2015 Volt has not been re @-@ certified with the EPA . 
