How long to charge my EV on 120V? 240V? Kris Kluzak August 18, 2018 06:27 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 Which JuiceBox is right for me? Complete Manual Limited Warranty (United States) JuiceBox and 120V operation Comments 0 comments Please sign in to leave a comment.