I realize that the less amount of time the car is at a high SOC, the better. However, here is my question/dilemma: My electricity company does not have a plan that includes cheaper electricity for off-peak. Electricity is the same price (.06kwh total :wink regardless if you are pulling it at 1PM or 1AM. When I first had my Model S, I had it set to charge at 1AM just to minimize the amount of time it would sit at a high SOC. I normally charge to 85 or 90%. However, I've also thought "What if I have an emergency at 8PM". Like a family member goes to the hospital 90 miles away, or some other unforeseen event that I"ll need all the miles I can get. I realize this is far fetched, but still. So how much harm would I do if I just cancelled the scheduled charging and let the Model S start charging as soon as I get home from work up to 85 or 90%? I drive anywhere from 80-130 miles a day, depending on if I go visit any clients. It would just make me feel a little better if we had to rush out of the house one evening, going ahead and having a fully charged vehicle versus one that only has 115 miles on it. How much real damage would I be doing to have the car sit at 90% for an extra few hours everyday?