Last night I charged #304 for 1 hour then I drove to the Mall and back all on highways going about 75 mph.
The charging added 3% so I started with a 88% charge, drove 21.1 miles, and ended with a 66% charge, and an estimated 64 mile range.
I then plugged it in and let it charge overnight, of course I had to sneak out and see how it was doing during the night, one thing I noticed is that blinking charge light is bright, if you have windows on your garage the neighbors will think you have a strobe light going all night, it should dim based on time and ambient lighting.
Anyway after about 5 hours the charge was at 81%, after 10 it was at 92%, and after 11.5 it was at 95%
110V 12A charging is very slow, this really wouldnt be practical for everyday driving, but I do have another car I can use when the MINI E's charge is too low.
On the good side I'm finally driving an Electric car, and BMW is waving my lease payments while I dont have the wall charger.