New Tesla Model Y with BYD batteries charges much faster | Hacker News Reader

New Tesla Model Y with BYD batteries charges much faster

electrek.co

37 pointsmfiguiere16 comments

Or you could buy the entire car from BYD [1][2] and cut out the middle man.

[1] https://ev-database.org/car/1784/BYD-HAN

[2] https://electrek.co/2023/02/17/byd-han-first-drive-chinese-e...

Is this really even close to the same car or battery?

The article references a 60kWh LFP battery that charges at 170kW peak. The EV database site is an 83kWh LFP with 120kW peak charging...

Also, the Han is a sedan. Y is a crossover.

They are rather good cars. More interesting than a Tesla too in my opinion.

Not sold in the US

BYD makes a lot of batteries, at different price and quality points.

Their own car might not be using the same grade of battery they are selling to Tesla, depending on the price point they are hitting. (Samsung sells their best stuff to Apple, but doesn't use the same high grade materials in their popular A-series phones.)

...or they might be, we need better battery-specific reviews.

We don't care much about the fuel in our cars because they are mostly the same the world over.

Sure we can talk about leaded-unleaded or which RoN we use for petrol, but tbh, the difference far less relevant in the long term. One Pump didn't work out, next time go somewhere else.

Batteries on the other hand...since we lug the damn things around and whatever flavour they came with, will stick with the car of the lifespan of it... that matters a lot.

But does it come at a compromise of battery life? Peak charging can stress the battery a lot.

Even with cooling? I know that Tesla heats up and cools down the batteries depending on the temperature.

I’m not an expert so others can weigh in, but as far as I know, temperature is only part of the equation when it comes to battery life. I know pressure build up is a thing which can stress the battery. There could be more factors.

The whole point of advancements in this area is to charge the battery faster without wearing it faster. Cars with slower-charging batteries still stress them to the limit, just with worse results.

this has no effect on whats coming out of Fremont yet does it?

At first sight, the headline appeared to be about a "BYD" battery chemistry.

This shows the much hyped original Tesla Gigafactory is a failure. Tesla cannot make batteries any cheaper or better than the supply chain.

It's not a matter of "cheaper or better" batteries, EVs need more supply of batteries, total.

Tesla can't get enough of them. That's why Tesla is building giga factories and buying from CATL, BYD etc.

Iirc, other EV companies are also struggling to get any batteries, and are facing difficulty ramping production. Ford's F150 Lightening is massively popular, but Ford just can't make enough of them, because battery supply isn't matching demand.

No, Tesla has not expanded the Nevada gigafactory to its promised size (https://en.m.wikipedia.org/wiki/Gigafactory_Nevada). It’s been half built from the beginning. Tesla has another factory in Buffalo which is pretty idle as well. If it were economical to expand production there, they would do so. If anything, they will obsolete some lines to add others (4680), but I’m not holding my breath. It’s just not economical to produce batteries in the US, except to satisfy new subsidy requirements for US EVs.

But it is economical with subsidies you’re saying?

The Nevada one is being expanded, the Panasonic portion is fixed, but they are adding their own two new sections, one for 4680, and one to build the Semi; I recall reading a news-piece relatively recently, so I disagree, something is happening.

The Buffalo one...yeah, Tesla is just biding their time till they can't be asked to return their subsidy, imho. absolute crap-shoot of an investment all around.

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