Great car for that trip. Actual range is about 70% of the displayed Rated Range. That is the data from TezLab. This an app with thousands of users. Their aggregate data shows that the average "efficiency" among its Model S users is 71%. Newer cars may do a little better. Their app defines efficiency as actual miles divided by Rated miles. TezLabI'd be interested in learning more about your experience with charging and hotel destinations for this trip. I'm about to fly into Cincinnati next Thursday to pick up my car and drive it back home (Port Charlotte, FL). I bought a 2019 Model S Standard Range 285 estimated miles which I believe to be a Raven as the manufacture date is late Sept 2019. It was an inventory vehicle with 835 miles on it. This is a trip that I will probably make once or twice a year to go visit family. This will also be my first EV and first Tesla so I've been scouring the forums trying to learn as much as I can, but I'm definitely getting a little anxious over my first EV road trip. Any thoughts or suggestions on how to plan for maximum efficiency on this trip? I've been playing with A Better Route Planner, PlugShare, & Tesla's trip planner online, though the results are kind of all over the place.
As far as the variables are concerned: I'm planning on leaving with a 90% SoC, top max speed of 85mph (but likely average 75-80), planning on getting a hotel in Georgia along the way, and would prefer to split up the trip in about (2) 10 hour days give or take. I have also been putting in SoC times around 10% for arrivals and 80% max charge.
Any advice or suggestions you can send my way would be greatly appreciated!
Some of the things which can surprise you: headwinds, mountain climbing, and very cold weather. All can dramatically reduce range. Driving at 80-85 consumes lots more energy than, say, 65-70. More than you might expect. Keep tires at the maximum recommended pressure. That is 45 psi on my 19" tires.
I haven't done many long trips, but the In-car navigator does a good job. Better Route Planner may be a little better in some ways. But you have to set up a device for it. May not be worth the trouble. Do both. See how they compare and tell us. I would be interested.