So I’ve had my Series 3 just under a month and today is the first time I’ve needed to go a long distance. So I stopped at the Adderston supercharger just off the A1 before Berwick upon Tweed. I’d noticed while planning my route it’s the only 250kw supercharger station I've seen on the map. I had expected to plug in and the car to say it would be fully charged in something like 15minutes (after all 250kw is 35x more than my 7kw home charger), so I was a little shocked to see my car say 1hour to charge. As you can see in the pictures I was the only car plugged in but it was charging at less than 60kw. When I first plugged it it went to around 140kw but quickly fell. Is this normal or were my expectations off?