Hubby was running errands today up the SF peninsula, left home with about 100 mile range and ended up making an unanticipated trip stop he hadn't planned. He found himself with 37 range miles left afterwards, so decided to stop at the Mt. View SC. First time there. Told him it was one of the busiest locations from what I've read on here and to expect a line of cars waiting to charge. Got there around 4pm and said all 12 stalls were full with one car in front of him. Three cars pulled out so he got in pretty quickly, plugged in and walked across to the Starbucks. When he got back he was surprised to see that his car wasn't charging. Couldn't figure out what had happened as it was charging when he left and the car indicated he had 50 minutes remaining to charge to the level he set and he had come back before that time. So he starts charging again. Five minutes in he looks up and notices the stalls have a sign that says something like "30 minute general parking; vacate stall when charging complete." He didn't think to take a photo of the sign but thought the sign was kind of vague. So he figures this means that the superchargers have a time limit on them of 30 minutes and then shut off. He's charged at the Gilroy SC and never noticed anything like this and can't say I've read about it on the forum yet. Anyway he had 115 mile range at that point when he started charging the second time so stopped charging and that will get him to his next stop and home so he was okay. I know Mt. View is a super busy location used by many so can understand a limit being imposed. Not sure how that works for people traveling far beyond but guess the 30 minutes is enough to get you to another maybe less busy SC if need be or your home etc. for others not traveling that far.