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Old 06-01-2024, 10:10 PM   #46
enorbet
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Quote:
Originally Posted by shortarcflyer View Post
According to consumer reports:

"The cost can be between $5,000 and $15,000 and is akin to an engine or transmission replacement in a gas car."

https://www.edmunds.com/car-technolo...and-range.html
That's actually a very interesting article, shortarcflyer. I do hope you read the entire piece. I didn't realize for example, that right now in 2024 EV batteries are expected to last 15-20 years and rapidly improving battery technology drives all the numbers better every few months even at the current pace. I also didn't realize GMC was making EV Hummers with 200kWH capacity. Dayum!

I didn't see it in that article but I did see the Salton Sea area is about to boom because of huge investments somewhat like a gold rush but this time for Lithium, massive deposits of it. The locals are delighted at finally seeing so many jobs coming to their poor area. The US is delighted since it is poised to compete with China at a very high level while ending that dependency. The entrepreneurs are salivating over windfall profits and all modern battery users are wide-eyed over falling prices due to local resources. Oh yeah! It's happening!
 
Old 06-01-2024, 11:53 PM   #47
wpeckham
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Quote:
Originally Posted by replica9000 View Post
Forgive me if this has been mentioned in this thread...

When a car (with combustion engine) needs a new engine, it's common to get a rebuilt/junkyard engine. It can usually be cost effective so replacing the whole vehicle isn't necessary.

What about fully electric vehicles? What happens when the electric motors die?
You replace it and it gets rebuilt to sell to someone else. Just like starters for IC engines, which are just another electric motor.
Quote:
Or the batteries die? Supposedly the batteries are 90% recyclable, so they probably aren't (or shouldn't) be found in a junkyard when you need replacements. Will replacing them be cost effective? Or will EVs be like Apple products, where the cost of replacing parts is almost as much as replacing the whole thing?
Every generation of LI cells has been cheaper and better than the last one. We have alternate chemistry cells now that take less Lithium or none at all (Sodium cells look exciting, cheap, great capacity, longer lasting, and safer) that will be replacing LI cells soon. There is a horrifying chance that the darn car will last SO long that it will be out of style and make you look like an old fart before it must be considered "worn out" or "eol"! Some people will still be trading cars every year just because they get tired of driving the same car all the time, so the used market will glut and used car prices tank.

Actually, I suddenly rather like the sound of that.
 
Old 06-02-2024, 07:27 AM   #48
enorbet
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It is going to be interesting to watch what hot rodders and other tinkerers do with EVs. I watched a fascinating video a few days ago of a young fellow from the UK iirc that tried mounting a tiny drone motor (30,000 RPM) on his bicycle and 3D printed all the hardware to mount and gear it way down to see if it could even move the bike. It took a bit of tweaking but ultimately it did ~20mph... from a tiny drone motor!

As a kid, I used to build and fly model airplanes powered by IC engines that required fuel containing nitromethane. There was no way I could build my own tiny, precise motor like those let alone produce the fuel. I doubt I could make an electric motor capable of 30,000 RPM (the bearings alone would be a challenge) but I'm pretty confident today's tools would render it common to produce or re-purpose other motors capable of starting new industries. It's gonna get exciting.
 
  


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