I think it's worthwhile to prepare for a variety of charging scenarios. We were able to drive 249 miles non-stop from Norfolk, CT to our home near Philadelphia, PA last weekend with no range anxiety - because we could charge to 100% at our hosts' house.
Note - S100D, better-than-rated range due to:
- Chill mode / EAP
- Range mode
- Smart Air Suspension lowers car above 50 mph, better aerodynamics
- Tires at 49-50 psi cold instead of recommended 45 psi.
- Generally cruised at 72 - 75 mph.
- Fair weather, despite TeslaFi showing rain.
On road trips, our frunk carries:
- 50 foot NEMA 6-50 welder extension cord
- NEMA 10-30 and 14-30 dryer pigtails - plug with a few feet of cord. If the dryer outlet is beyond Mobile Charger reach, we use the welder's extension cord. I attach the appropriate pigtail to a 6-50 receptacle with a rubber boot.
- Mobile charger with full suite of Tesla adapter plugs
- Screwdrivers
Last weekend we visited my wife's cousin in Norfolk, CT - near the Mass border. Plugshare showed no chargers nearby. We arrived with 50% since we stopped at Greenwich SuC on the way up from Philadelphia. Figured we would stop at a rest area with SuperCharger on the way home.
Turns out the cousin is learning sculpture, has a huge air compressor plugged into a NEMA 10-50 outlet on a 30-Amp breaker. Tesla does not offer a NEMA 10-50 adapter.
Used cousin's grinder to make my NEMA 10-30 pigtail plug's ground blade compatible with a 10-50 receptacle. Plugged into the 10-50 wall outlet, attached Tesla 6-50 adapter to Mobile Charger, set 24 Amp charge limit in the Tesla. We charged at 240 Volts/24 Amps.
Battery was at 100% by morning. That allowed non-stop return, despite an enthusiastic demo drive before departure. Tesla's route planner predicted less than 20% charge on arrival. We were slightly above 25% when we parked in our driveway.
