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WarmWash • today at 4:05 PM • 2 replies • view on HN

Sorry to be blunt, but if you need to stop 3 times to charge to go 350 miles in an 300 mile range EV, you are doing something severely wrong or there is a problem with your car.

The only way I can make this happen in my head is the combination of driving in freezing temperatures, with the heat blasting the whole time, while doing ~80mph.

Mind you we do trips to Maine in the winter and only have seen ~20% range loss. Heated seats, cruise control at 65, heat on only as needed (about 5-10 minute an hour).


Replies

fullstop • today at 4:43 PM

I occasionally drive 300 miles in an EV rated for ~319 miles, and I have to stop once in each direction, but I also have to charge at my destination. There's a Tesla station near there, and the rates are fantastic if you get there before 7 AM.

I keep it at 65 and let the heater do whatever it wants to do so that people are comfortable. Temperature, elevation differences, and wind definitely change things.

There's a section of the drive where I average something like 1.3 mi/kWh on the way up the mountain, but something like 6 mi/kWh on the way down. On the return trip, it's kind of fun to see the guess-o-meter show 110 miles remaining over the course of 25 miles, or have it actually increase.

I'm sure that gas vehicles follow a similar pattern, but I don't pay attention to usage like I do in an EV.

coldpie • today at 4:27 PM

A drop from 80% to 20% in a 300mi car is 0.6 * 300 = 180 miles. It's a 350 mile trip. 350 / 180 = 2 80-to-20 discharges, and that's assuming no little detours for stopping at a cheese store or whatever. So we could do it in 2 stops if we were OK arriving with 20%, but we need some charge at the destination for getting around MKE, so it's three stops. And yeah, we drive 75 because that's the speed of traffic and the HVAC does whatever it does to make us comfortable.

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