I just purchased an NEMA 10-30 extension cord with the intention of occasionally charging from a dryer connection at a friend's house. The dryer is located close to the garage, but not quite close enough to reach it with the mobile charger cord. Without it, I am reduced to plugging into 110v with the 12+ hours charging time message. I normally charge in my garage with a NEMA 14-50 plug without an extension cord.
Does anyone have experience with charging from a dryer connection using an extension cord?