![2017 Tesla Model S 100D on cross-country trip from New York to California [photo: David Noland]](https://images.hgmsites.net/tmb/2017-tesla-model-s-100d-on-cross-country-trip-from-new-york-to-california-photo-david-noland_100643192_t.gif)
One of the reasons I traded in my 2013 Tesla Model S 85 last summer for a new Model S 100D was to get extra range. The newer car’s 100-kilowatt-hour battery gives it an EPA-rated range of 335 miles—70 miles more than the old car’s rating of 265 miles. Over four-plus years and 76,000 miles of driving, the 85-kwh battery in my...