I have a 2016 S 75 with around 21,000 miles on it. I've had the car for about 10 months, so I've obviously done quite a bit of longer trips and used Superchargers and CHAdeMOs. I have no idea of the percentage of DC charging and AC charging, but I'd guess it has been around 50/50 or relatively close to it. Recently, my supercharging experience has been terrible. This has happened at many different Superchargers, and I'm normally the only car charging. I've never been on a paired Supercharger. When plugging in, I'll initially get a charge rate of 90+ KW sometimes up to 96-97. The charge rate will stay in the 90 KW range for about 10 added miles before the rate quickly drops tick by tick into the 40s or 50s KW range (and sometimes lower) over the next 10-20 miles added and then stabilizes in that range. If I unplug and move to another bay, the charge will start at over 90 KW and then quickly slow again, so it doesn't appear to be related to a hot battery or charge cable. Today I deliberately ran the battery low before plugging in with only 24 miles remaining just to assure it wasn't related to the charge rate slowing as the battery filled, and this happened even with almost no juice in the battery. I plugged into all four circuits of an 8 bay Supercharger, and got the same results each time. Obviously this is very frustrating and adds substantially to the time spent at Superchargers. Has anyone else experienced anything similar? I have not contacted the service center yet because I wanted to try once when the battery was nearly depleted to see if this happened. Since it did, it looks like I've either got an issue with the car or am being throttled.