Don't forget a 61kwh only has 57kwh usable, upper and lower buffer, rule of thumb you get 2 miles to 1% so 10% will be closer to 20 miles you are correct a 7kwh charger is around 10% a hour, I used 82% to do 170 miles yesterday so just a smidge over the 2miles to 1%, MG5 LR Excite