How long to charge my EV on 120V? 240V? Kris Kluzak February 12, 2019 19:08 Updated Follow Charging rates vary dramatically by the vehicle battery size and your electrical source. Please refer to this chart with individual charging times for a wide variety of EVs. Related articles Using a higher amperage station Limited Warranty (United States) Which JuiceBox is right for me? Complete Manual JuiceBox and 120V operation Comments 0 comments Please sign in to leave a comment.