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points by coldpie 1 day ago | 0 comments
I love my EV, but you're really not being at all realistic here. That's more of a perfect possible case scenario based on numbers from a website, not a real world scenario. I take a ~350 mile drive to Milwaukee in our 300 mile range car (2025 Ioniq 5) and we have to stop three times on the trip in each direction.

You're not actually going to get 200mi from 100% when you have 2 people and baggage loaded and traffic exists, and no one sane would be comfortable arriving with literally 0% battery. Charging stops take minimum 10 minutes just accounting for getting off & back on the freeway; usually more like 30-40 minutes because why would you not just charge back up to 80% since you're stopped anyway? Your destination hotel almost certainly does not have a charger, or if they do they charge an idle fee, so you can't just leave it overnight, so really that has to count as another charging stop.

For a 200mi each way trip, realistically you're talking probably two 30 minute charge stops in each direction. That's not completely unacceptable (eg just have some lunch at one of the stops) but your 5-8 minute quote is absolutely not realistic. A bump up to 300mi range would drop that down to one stop in each direction, which would be a real benefit.

[–] WarmWash 1 day ago
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).

[–] fullstop 1 day ago
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 1 day ago
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.
[–] WarmWash 1 day ago
Why are you leaving home with 80% charge and why are you limiting discharges to 20%?

Also using heat instead of seat warmers just hurts you for the same level of comfort.

[–] coldpie 1 day ago
There are 30-50 mile (>10%) stretches with no fast chargers in WI. I'm not going to risk being stranded if one is broken and I need to make it to the next one. I'm not really interested in nibbling around the edges & hypermiling to save one half-hour stop.