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4

the 'performance' of electric cars

submitted by boekanier to news 2.3 yearsMar 9, 2023 02:11:25 ago (+4/-0)     (www.thisismoney.co.uk)

https://www.thisismoney.co.uk/money/electriccars/article-11835971/Cold-weather-reduce-electric-car-battery-range-says-study.html?ico=mol_desktop_home-newtab&molReferrerUrl=https%3A%2F%2Fwww.dailymail.co.uk%2Fhome%2Findex.html&_ga=2.254309761.889894420.1678345628-975746541.1671979892&_gl=1*1lmtx8e*_ga*OTc1NzQ2NTQxLjE2NzE5Nzk4OTI.*_ga_XE0XLFFF16*MTY3ODM0NTYyNy40NS4wLjE2NzgzNDU2MzMuMC4wLjA.



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[ - ] localsal 0 points 2.3 yearsMar 9, 2023 04:50:47 ago (+0/-0)

The test process obviously was very well designed and controlled, but the results are "real world" comfort. Suppose the interior heat was not used, that would be more ideal test of battery degradation.

I could sit with my batteries heating the interior all night and get 90% performance loss too...

The interior heating mucks up the whole test, IMO. Yes, all cars were consistent, but it is obvious that using the battery for amenities will affect range. How does the battery performance suffer due to the cold???

That direct question remains unanswered.

[ - ] Moravian 0 points 2.3 yearsMar 15, 2023 17:06:35 ago (+0/-0)

The real world test is the way to go, who is going to spend tens of thousands of dollars on a car and freeze in the cold? Anyways this is not new knowledge batteries drop anywhere from 30-50% in Kwh during sub zero temperatures. The answer to the question is fully electric cars are gay, lame and retarded.

[ - ] localsal 0 points 2.3 yearsMar 15, 2023 19:13:35 ago (+0/-0)

If the option is to keep the heat off and actually make it home or to a charger, vs staying warm and being stranded? Really?

Yes, electric cars are overhyped and the negatives are always downplayed. But if the actual test is to figure out how much battery percent drops due to cold, keep the heater off.

[ - ] Moravian 0 points 2.3 yearsMar 16, 2023 12:43:32 ago (+0/-0)

How much do batteries drop in the cold is not a viable test. How cold? How much moisture. How long in the cold? There are so many factors. The fact is as I stated batteries drop 30-50% or more depending on how cold and other parameters. This is why electric cars suck in the cold, you'll never really know how much range you've got until you start driving.

[ - ] localsal 0 points 2.3 yearsMar 16, 2023 13:43:54 ago (+0/-0)

The test parameters in the study quantified the cold, and kept the cars in the cold for 14 hours - that seems like good methodology.


Prior to testing, the tyre pressures were set to the manufacturer recommendation, before the cars were fully charged and left outside overnight for roughly 14 hours in temperatures that ranged from 0 to 2 degrees centigrade.

Then the cars were driven in formation - also good methodology.

I have no problems with their methodology or study, other than the heater part. How much of the range decrease was due to the heater? That is my question.

An ideal test temperature would be more like -15C, but that really depends on the weather in the location. -40C would be very interesting to see for sure.

After reading so many stories about "range anxiety" for electric car drivers, if the choice was between an extra 3% battery life and warmer temps inside, I think drivers would opt for the range.

[ - ] Moravian 0 points 2.3 yearsMar 16, 2023 15:50:40 ago (+0/-0)

The answer to your question is "it doesn't matter because you need a heater to defrost the windows and there have been other tests done that show without a heater on using just the range drops 30-50% or more depending on many factors." What good does it do for you to know how much range you loose in a given electric car, with a given load, with a given temperature when those variables are constantly changing? Obviously if you're a person retarded enough to buy an electric car in cold climates and you realize you have not enough pwer to get home you need to shut everything off to conserve energy and get a few more Km's, it's fucking common sense.

[ - ] Kozel -1 points 2.3 yearsMar 9, 2023 02:40:41 ago (+0/-1)

[ - ] boekanier [op] 1 point 2.3 yearsMar 9, 2023 03:05:15 ago (+1/-0)

the result is the same, I just copied the address, don't know what the result would be. And you know what? I don't care.

[ - ] Kozel 1 point 2.3 yearsMar 9, 2023 16:14:42 ago (+1/-0)

The result is certainly not the same. The result is that people visiting your link are tracked by a unique identifier and their ip is logged using that identifier which is then used by third party cookies to track further.