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twobitshifteryesterday at 9:54 PM5 repliesview on HN

It looks like they have the BEV lasting just as long as ICE car without any battery replacement. Has it turned out that way? Seems like owning an electric car for 18 years really hasn’t been a thing since the model s was released in 2012, but is it projected to last that long.


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FabCHyesterday at 10:59 PM

As a data point: I’m at year 8 of Model X 100kWh with basically 0% capacity loss. If it exists at all, it’s less than 1-2%, so less than what I can reasonably measure with just the odometer and battery indicator.

Nissan Leaf gave BEV a bad name because it had much worse battery tech. Battery longevity is not a problem for modern, or even decade old cars.

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wcunningtoday at 12:05 AM

The issue is less the wear and tear of the battery and motors and more the wear and tear of everything else -- suspension and brake components are going to need replacing, along with radar and ultrasonic modules, etc. These parts will be at least partially end-of-life and hard to get by the end of that 20 year period. Federal law requires some amount of parts availability for 10 years + some release of part designs to the aftermarket after that, but I have a hard time getting parts for 21 year old Ford designs that were less than popular, so I would be surprised if early Tesla models are having an easy time 20 years on. This gets much much worse as you start to look at the number of abandoned EV models from the Big 3, the abandoned/dead/dying companies (Fiskar, Lucid, Lordstown, etc). That doesn't hit the vast majority of all EVs, which are just Tesla, but it does put a dent/makes the buying decision harder. Now expand that to not just Tesla, but what does Tesla do with a Cybertruck? Like all things, the specific product decision matters a lot, and this is a new area (even at 14 years old) so there will be lots of people who optimized for cost and not maintainability.

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bryanlarsenyesterday at 11:50 PM

4% of Toyota engines need to be replaced before 250,000 miles; 3% of Tesla batteries need to be replaced before 250,000 miles. "More reliable than a Toyota engine" is pretty high praise.

toomuchtodoyesterday at 10:07 PM

Yes.

EV Batteries Last Way Longer Than Expected - https://news.ycombinator.com/item?id=43001996 - February 2025 (2 comments)

New study shows: EV batteries last much longer than expected - https://news.ycombinator.com/item?id=42228901 - November 2024 (70 comments)

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

trollbridgeyesterday at 10:56 PM

Certainly not the case for hybrids like Priuses. The battery system lasts 10-15 years and 150k-200k miles. Any ICE car on the market now should be expected to last a lot longer than that; I drive cars that are 25+ years old and really don't need much significant in the way of repairs.

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