*** Mercedes-Benz B-Class charge and departure on your Watch, iPhone, and iPad *** Manage Mercedes B-Class charge and departure time from convenient iOS and watchOS apps. The MyB user interface is streamlined to provide the most important information and actions you need to supervise your electric vehicle remotely. MyB checks the Mercedes webapp every five minutes without draining your phone and watch battery. It achieves this by performing the checks from our servers — not your phone or watch. Changes are pushed to your phone and watch only when the servers detect differences or you explicitly request an update. Your app screens and watch complications stay fresh as long as you can receive silent (i.e., they don't bother you) data notifications. Do you share a car with someone else? Sign-in to MyB from as many iOS and watchOS devices as you want. Everyone stays in-sync! MyB is not associated with or endorsed by Mercedes-Benz.