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How BYD got EV chargers to work almost as fast as gas pumps

wired.com

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Re: How BYD got EV chargers to work almost as fast as gas pumps

#51

This [0] is the actual (good) news, linked from the article. [0] https://www.techradar.com/vehicle-tech/hybrid-electric-vehic...

Neither article really explains how they are able to charge this fast, aside from “vertical integration” and slightly increased energy density in the battery design. No real details on the charging technology itself.

Sounds like the trick is to use 1.5MW chargers. I guess that'll do it. I suppose the question is how they handel this thermally.

Re: How BYD got EV chargers to work almost as fast as gas pumps

#53
post #2

Is this how the US falls behind? Missing technological improvements due to blind disagreements with Chinese/etc, combined with inability to update infrastructure? (Unclear how/why but datacenters being stood up so quickly seems like an exception to US’s bad construction)

It's how Europe falls behind, you mean. Why do they always get left out of the comparisons? Because they're so far behind anything it would be an insult to include them?

Maybe, but BMW are at least trying. https://www.autocar.co.uk/car-news/electric-cars/electric-3-...

At least the Chinese tech will be available to European consumers, nothing says insecure like pretending a competitor doesn't exist.

Re: How BYD got EV chargers to work almost as fast as gas pumps

#54
Although the thought of getting an electric car has passed through my mind on a few occasions, I'm not 100% familiar with the intricate technical details. (for some reason, the tax incentives where I live are still in favor of continuing with the small petrol car I have. Taxes are primarily a function of weight in the Netherlands, and anything besides a lightweight Dacia Spring would imply significantly higher monthly expenditure for me).

What I'm wondering w.r.t. this article is: wouldn't such fast charging shorten the battery lifespan?

I have experience with ebike batteries. Bosch in particular, with very decent 29E samsung cells, that after 70k km or so, basically halved their capacity. I imagine this effect is severily reduced with a car battery because there are a lot more than 10p, so all the wear is distributed more evenly, and 29E are very old technology.

Re: How BYD got EV chargers to work almost as fast as gas pumps

#55

Absolute garbage. Just stop and think for one second what kind of power delivery is required to do this and you will quickly realize that’s it’s not feasible anywhere other than as a demo.

looks like they are aiming for 20,000 this year and already have 4,239 "In the first two months of this year alone, BYD has already completed 4,239 charging stations" https://carnewschina.com/2026/03/05/byd-unveils-blade-batter...

Re: How BYD got EV chargers to work almost as fast as gas pumps

#56

Based on the figures here, they’re claiming around 400 miles of range added in 300 seconds (60% of the full 677 mile range); contrast this with around 100 seconds for a typical gas pump (8 gal/min) and typical efficiency (30 mpg). It suggests that you’d need around 5MW chargers to truly get to the speed of a gas pump. On the other hand, 5 minutes is already a huge improvement over 15-30 minutes, and it’s fast enough…

5mins is really as good as it has to be. Almost everyone needs a bathroom break or gets a drink/snack after 400miles.

Re: How BYD got EV chargers to work almost as fast as gas pumps

#57
post #50

Absolute garbage. Just stop and think for one second what kind of power delivery is required to do this and you will quickly realize that’s it’s not feasible anywhere other than as a demo.

They use a buffer battery, it's quite feasible with that.

Feels like such a waste for marginal gains?

With the range as good as a modern EV the charge time already isn't a particularly that bad. I'd much prefer more chargers (so that you can combine charging with something else you were going to do anyway) than faster ones.

Re: How BYD got EV chargers to work almost as fast as gas pumps

#58

Earlier quoted context omitted.

It happens all the time that a government regulates foreign industries while giving domestic ones relatively free reign. Canada has no car manufacturers. Europe has no Facebooks or Apples. The US doesn't make diesel cars.

Canada might not own car manufacturers but they do have factories that build cars for GM, Ford, etc, and these are important to their economy. I thought some were sold in the US even? Chinese companies aren’t exactly building factories in Canada to sell to NAFTA, but I guess Carney figures it’s worthwhile overall?

Many are made in Canada [1]. I remember traveling to Quebec in the early 2000s and being surprised to see more people driving Fords than back home in the US.

I suspect part of BYD’s strategy is to get a foothold in the North American free trade zone. Maybe they won’t be able to export to the US at first. But if I recall correctly, an import US legal principle is that laws/tariffs cannot discriminate against a single company (excluding for national security). So BYD will simply iterate toward a design that satisfies US regulators. I am not familiar with Canadian safety regulations but I would be surprised if they were dramatically different. Unless American car manufacturers can find it in their hearts to sell an affordable car, this is an existential threat.

[1] https://www.guideautoweb.com/en/articles/76684/all-the-vehic...

Re: How BYD got EV chargers to work almost as fast as gas pumps

#59
post #2

Is this how the US falls behind? Missing technological improvements due to blind disagreements with Chinese/etc, combined with inability to update infrastructure? (Unclear how/why but datacenters being stood up so quickly seems like an exception to US’s bad construction)

[flagged]

The Chinese are selling their EVs all over the world.

There are credible American auto enthusiasts that have got these cars and have been using them in the. US.

The superiority of Chinese EVs isn’t propaganda.

The gas pumps maybe are just a ruse but we know they are operating in China since unlike the US auto industry the Chinese one is incredibly competitive so if BYD was lying about their gas pumps the nearly 100 other competitors would have called them out

Re: How BYD got EV chargers to work almost as fast as gas pumps

#60
I have a feeling that half the reason they're doing this is that they don't have a good idea how to increase energy efficiency.

Case in point:

2026 BMW i3 - 900km WLTP from a 108kWh battery.

2026 Denza Z9 GT - 800km WLTP from a 122kWh pack.

The former charges at a maximum of 400kW, while the latter at over twice that which saves... about 10 minutes at the charger after 450km of driving(12 vs 22 minutes approx).

Many such examples with Chinese manufacturers putting 700kg battery packs into the vehicles just to be able to say it's this and that kWh.

I don't know about anyone here but after 400km or so I'm done and want to at least stretch my legs.

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