You'll love it.
Learn Autopilot slowly on the open road - a long road trip is a great way to do this. You need to learn where you can trust it, and where you can't; where it works well, and where it doesn't - initially, treat it as Cruise Control where you're completely in control and paying close attention. If you have "Navigate on Autopilot", set "Require Lane Change Confirmation" to "Yes" until you get used to where/when it wants to change lanes.
AP is a great feature on long road trips - I pay attention, but at a more executive level. I see what traffic is doing, what the roadway is doing, without having to simultaneously manage accelerator, following distances, lane centering, etc. When traffic/roadway is challenging, I focus more heavily on the car's driving and am primed to take control quickly if necessary; when traffic/roadway is clear and simple, my focus can wander a bit more. As others have noted, this makes long trips much less tiring.
You really don't need to worry too much about charging adapters; there are so many Superchargers that the likelihood that you'll need them is essentially zero. I don't carry my Mobile Connector in the car because of that. But, if you wanted to be sure that you could charge anywhere you needed, take (in priority order):
1. A 5-15 Adapter with 25 or 50' 12 Gauge extension cord. The 5-15 is the standard US outlet, and means that you can charge (if even very slowly, about 4 to 5 miles of range for every hour of charging) anywhere. Perhaps you only need 5 more miles of range to make it to a Supercharger - this will give you that emergency capability. Perhaps your AirBNB doesn't have an EV charger - plug into an outlet in the garage or house and get a few miles added while you sleep. This adapter I believe comes with the car.
2. A J1772 Adapter. PlugShare or similar apps are great for finding non-Tesla chargers; J1772 is the most common one you'll find. And the adapter is free (comes with the car). This will give you reasonably fast charging, similar to the 14-50.
3. A 14-50 Adapter. This will let you charge at just about any RV campground in the US. Most have a policy at this point about charging - it might be free, it might cost a nominal amount, it might require that you rent a space for the daily rate. Regardless, in an emergency it's a great solution, and you get about 30 miles of range for every hour you charge.
4. Other adapters aren't really common or don't have much advantage over the listed ones:
- The 5-20 is an uncommon plug sometimes found in garages, kitchens, or commercial buildings. It's a modified 5-15, and will charge slightly faster - perhaps 6 miles of range per hour of charging.
- A TT-30 (not sold by Tesla; you can buy one from
Search Results for “tt-30” – EVSE Adapters) adapter is an older standard for RV's. You'll charge about twice as fast as a 5-15.
As others have noted, charging is fastest when the battery is low. Your emotions will want to keep the battery full, but as a practical matter you'll make better time by charging only enough to get to the next charger with 20% (when you start out; eventually you'll likely get comfortable with 10%) left on the battery. If you're using in-car nav, you can get it to tell you what your battery level will be at the next charger. Feel free to charge to 90% when you're stopped overnight, it may let you skip a charging stop, but otherwise it doesn't provide a whole lot of value to do so.
In-car nav is great. If it detects that you're going to get to a supercharger with less than about 10% charge, it'll warn you on screen to slow down - pay attention to it. Yeah, going 65 rather than 75 might be annoying, but trying to push a 4000 pound car for two miles to the next supercharger is even more annoying.
For your passengers, only a few games will run on the screen while you're driving - for example, Solitaire does for some strange reason but Backgammon won't. They may have to bring their own entertainment.
You'll find places on your trip where streaming radio won't work. Consider putting some music on a USB Flash drive for those sections of roadway (must be in MP3 format).
Have fun, and keep on grinning.