Wrapped up a 4,500 mile Texas-California trip. No real problems with Supercharging across 30 chargers. Travelled mostly by day and often had Superchargers to myself. Only once had to share a pair!
Over all positives:
- Fantastic that this kind of trip is possible. Even a couple of years ago this would have been trying.
- In-car navigation reliably takes you to each charger.
Not quite so positive:
- During trip planning, worries about scarcity/spacing of chargers still exists. e.g. see I-40. Most are single points of failure, catastrophic to a planned trip. Would love to see alternates ("plan B") close to existing locations.
- We travelled mostly by day. I'm not sure I'd risk night travels. Most places are closed then anyway, so no restrooms. Hotel lots fill up at night; e.g. Sweetwater TX, had only half the stalls available when we arrived late one evening. The rest of the lot was filled, and the hotel staff was telling people to take the Supercharger spaces - there's nowhere else to send them.
- Heat, like 100ºF+, seems to slow charge rate, or at least accelerate the taper. Start at 110+kW but rapidly drops to 70-ish even while the battery is only at 50% full.
- Would love some shade on those I-40 chargers. Baker is amazing. Please shade all Texan chargers!
- After charging in the heat, the car's thermometer shoots up to 135ºF, and cabin AC turns off for 30 seconds or so while the car cools its electronics. Not a terrible thing just interesting to watch. There is an on-screen alert about reduced cabin cooling, and it is temporary.
In a way there's an overabundance of chargers - several times we were the only Tesla there.
Chargers are at seemingly random locations - burger joint here, hotel there, gas station next. Sedona and Santa Fe's are both located many minutes away from where people actually stay/go, in out-of-the-way malls. There's seemingly no master planner behind these location choices. Just "somewhere, anywhere".
Sweetwater, TX at 11:20pm:
I expect during the day this area is cleared.
But then Baker, California; feels like chargers as far as you can see!
The Baker experience was, like all the daytime stops, clear and easy to Supercharge.
A couple of long legs could be eased with an intermediate charger. Kingman <---> Flagstaff is loooong even with a 100kWh battery; it's very windy. And neither endpoint is at an interesting place to wait for a long charge. An intermediate would mean shorter charging at all 3 locations.
Texas is large. Supercharging's OK on the highways but Lubbock (paired with Clovis, NM) would allow a huge corner to be cut. It's also a long stretch from Cisco, TX to the Austin supercharger. I'm sure there are other criss-cross routes that could be better served.
Speaking of Austin - the Austin location has no facilities, and is stupid hard to park in. Whoever approved that location must have been having a joke!
California was beautiful as always. The most unexpected sight was the solar generator near Primm.
Three astonishingly bright candles, outshining the desert sun.
Autopilot drove probably 99% of the highway miles. A big help. Never gets tired, never gets distracted.
Road-tripping in a Tesla: thumbs-up!