I got my 70D delivered at the end of June. For tax deductions purposes, leasing it made far more sense than buying the car. I am going to turn this car in at the end of 36 months. Bottom line is that I don't really care about "battery life" being affected in year 4+ of ownership. So, is there any other logical reason why I shouldn't charge my battery to 100% each time and maximize the number of miles I can drive for each overnight charge? I don't drive much more than 40 miles per day with the exception of one or two days a month when I drive around 160 miles. Charging to 90% gets me around 212-214 miles and a full charge gets me around 235. Obviously I don't NEED to charge to 100% each time but I can't for the life of me figure out why I wouldn't WANT to charge the car fully? Does charging the last 10% of battery cost me the same as the prior 90%? Thanks!