I occasionally work at the Community Hospital of the Monterey Peninsula. It's 104 mile drive, one way, from my home inSan Mateo. That's easy to do in my Roadster but of course I will need to charge up to get back. At that hospital there are four SEMA J1772 chargers, and I have the Tesla J1772 adaptor cable for my Roadster, though I have never used it. Has anyone here used the SEMA chargers at Monterey Community hospital? I would like to know how many amps they are. I called the hospital and spoke to someone who claimed to know about them but he had no idea of the amperage available. He said they were not heavily used and there was normally at least one or two available. He said you pay by credit card. I don't know if that is correct (there is also a Nissan CHADEMO charger there which I think takes credit cards but of course I can't use that). The Plugshare app on my iPhone claims to be able to make payments at SEMA chargers but it is unclear to me how I use it to do that. The help video in the app is remarkably short on details. I'll be getting there at 0630 and am sure there will be some chargers available at that hour. I'll be leaving my Roadster plugged in while I'm working and will probably be at the hospital for at least four hours. The question is how many miles of range will I be able to get? Thanks for any advice offered.