I'm planning out a road trip between Columbus, MS and Oklahoma City. There is a 370 mile supercharger gap along I-40 between Little Rock and OKC.
Luckily there is a destination charger in Russellville, AR and we were planning on spending the night along the way anyhow.
My question is this: is it reasonable to do the 270 interstate miles on a 100% charge? I highly doubt I can do the 75mph speed limit along I-40 through Oklahoma. What speed should I trip plan at? 65mph steady?
We'll be departing around 6AM so Air Conditioner won't be running too hard.
I think I would attempt the 270 miles on a full charge. I just returned from a 4,100 mile road trip and my confidence in the car is sky high. I would think that if you slow down bit you won't have any problems. On our trip I drove 78 when the limit was 75, and sometimes went up to 80 or so to pass slower vehicles.
Here are some numbers for you. All of these are east to west legs of my trip driving into a headwind. AC was generally on setting 5 or 6:
Grand Island, Nebraska to Gothenburg, Nebraska - Began with 213 miles on the battery, as shown on the screen. Drove 102.5 miles and arrived at Gothenburg with 88 miles showing on the battery. If my math is correct, I drove 102.5 actual miles but used 125 "battery miles." So my actual miles X 1.22 = battery miles.
Gothenburg, NE to Colby, KS = Began with 226 miles on the battery. Drove 161 actual miles arrived in Colby with 53 miles on the battery. I drove 161 actual miles but used 173 battery miles. Actual miles X 1.08 = battery miles.
Colby, KS to Limon, CO - Began with 258 miles on the battery. Drove 145 actual miles and arrived in Limon with 89 miles on the battery. I drove 145 actual miles but used 169 battery miles. Actual miles X 1.17 = battery miles.
Albuquerque, NM to Gallup, NM - Began with 233 miles on the battery. Drove 147 actual miles and arrived in Gallup with 57 miles on the battery. I drove 147 actual miles but used 176 battery miles. Actual miles X 1.2 = battery miles.
Gallup to Holbrook, AZ - Began with 226 miles on the battery. Drove 88 actual miles and arrived in Holbrook with 132 miles on the battery. I drove 88 actual miles but used 94 battery miles. Actual miles X 1.07 = battery miles.
So if I'm doing this correctly, your trip would look like this:
Leave Russellville, AR with 310 miles on the battery. Drive 270 miles. If you use my worst leg from Albuquerque to Gallup as the multiplier, you would need 270 X 1.2 = 324 battery miles. If you use 1.12 as the multiplier, you would need 302.4 miles on your battery at the start. But, if you slow down to 65 I think you could make it. I'm not super familiar with Oklahoma winds, but I would think they would be worse west of Oklahoma City rather than east of there.
Kelly