The charge time for the 2013 model-year Volt will be longer than the 2012 model, due to the greater EV-only mode range, with a full charge taking 4.25 hours on a 240V charging system and 10.5 hours on a 120V system.
Kelley Blue Book's Kbb.com Names 10 Best Green Cars of 2012
New for 2012, the editors not only name what they feel are the 10 “Best Green Cars” of the year, but also rank their selections.