We visit our grandparents often in Indy, but they only have a standard 110v outlet at their townhouse garage. We routinely charge there at 4mi/h. We use the local Tesla mall charger to top off, but this is a small hassle. Their garage is detached and I don't think their breaker is in the garage. What is the easiest way to upgrade their outlet? A friend said a 240v 30amp line would be costly and a hassle for this detached garage. Is there a simpler outlet to change to that would allow us to do any better than 110v? Thanks!