frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

BYD is bringing its 5-min 'Flash' electric car charging to Canada

https://electrek.co/2026/06/10/byd-flash-charging-canada-5-minute-ev-charging-network/
54•breve•1h ago

Comments

blondie9x•37m ago
Does anyone know if they have looked at how charging quickly impacts the longevity of the battery? Can the cells be damaged by the rapid increase in temperature and current?
bean469•34m ago
I looked, but didn't find anything. Perhaps it's too early to tell?
Grombobulous•27m ago
Even if it did, this type of rapid charging only happens on long road trips.

I don’t specifically know for this type of battery but I’ve looked at pretty in-depth analysis of smartphone batteries (way less sophisticated battery management tech) and fast versus slow charging made very little lifespan difference. The best mitigations were fewer cycles and keeping the battery in its sweet spot (not discharging to 0% and charging to 100%)

verelo•20m ago
Probably a bit but here’s the thing: if charging fast is, well….faster…then people care less if they loose a little extra battery because getting it back is less inconvenient.

There’s a graph i imagine here where slow charging, you want to retain all capacity. Faster it gets, you tolerate more battery loss.

bryanlarsen•15m ago
Fast charging appears to damage batteries less than expected. There are lots of reports of taxis which almost exclusively used fast charging with over 200,000 miles on their battery.

Of course that is normal fast charging. Flash charging is 3x or more faster, so that's unknown.

Peanuts99•14m ago
There's been a lot of study into this already and the forming consensus is that fast DC charging is less of an issue on battery longevity than was first thought. In cars with decent thermal management systems it seems to have a fairly limited effect on battery lifetime as opposed to natural calendar aging.
Tade0•8m ago
Overall it's less the lone act of moving ions and more the heat that affects battery longevity.

BYD is using, among other methods, a "3D direct refrigerant cooling system", so the batteries are dipped in phase-changing coolant.

Aside from that the cells are pre-warmed and were optimised for lower internal resistance.

pjc50•8m ago
Significant work has been done on the "dendritic" failure mode of electrodes, where crystals grow from one electrode to another and may punch through separator membranes. This has gradually increased cell lifetimes. Now it's all down to temperature. Control-loop monitoring has got a lot better than "shove X amps in there and hope for the best".
bean469•37m ago
> The automaker has built over 5,700 Flash Charging stations in China in about a year, and as we reported earlier today, it is now deploying 2.4 times more charging power per month than Tesla adds to its Supercharger network.

Glad to hear this!

gcanyon•34m ago
As an American, I'm going to be really sad when we miss this transition. Maybe there's still time?
Grombobulous•27m ago
It will happen. My guess is that Canada is BYD’s pilot into the US. They have very similar buyer characteristics and the Canadian tariff deal allows them to enter the market without taking the risks of local factories.

It won’t take much to get BYD access to the US. It’s a two-step process:

- Toss a million bucks at Trump or wait for a Democratic administration

- Build a plant in Alabama/Tennessee/South Carolina/Georgia

That’s literally all it takes.

galangalalgol•13m ago
A million? 100M only gets you an ev advertisement on the Whitehouse lawn. It will need to be something more like Saudi Arabia's investment in ivanka, i mean the affinity group. 25M a year to his son in law gets your phone calls answered when you feel like Iran is acting up too much.

I am not as optimistic. If that doesn't happen the only candidate likely to let china do as they wilt is aoc. Vance would happily start ww3 with them. Rubio/newsome/shapiro etc will all keep the full pressure of all allies in them, potentially kicking them out of places they already sell.

gpm•5m ago
> Rubio/newsome/shapiro etc will all keep the full pressure of all allies in them, potentially kicking them out of places they already sell.

I sincerely doubt the US is capable of this. Trump has lit your soft power on fire. Trying to get people to give up a superior and cheaper product is an extremely large ask.

infecto•
close04•34m ago
This will be a logistical challenge for the grid but absolutely fantastic for BYD owners in particular.

> it is now deploying 2.4 times more charging power per month than Tesla adds to its Supercharger network

And this is fantastic for EV owners in general, assuming the charging network is open to all.

> In short, BYD isn’t just shipping cars to Canada – it’s planning to build and operate its own charging infrastructure

They're mastering the "don't build on someone else's foundation" philosophy. Vertical integration is a very powerful tool.

fundatus•27m ago
> This will be a logistical challenge for the grid but absolutely fantastic for BYD owners in particular.

Interestingly BYD actually puts batteries next to these chargers that they charge "off peak" to minimise the strain on the grid. So often times cars will actually charge from that battery instead of directly from the grid.

stymaar•8m ago
> batteries next to these chargers that they charge "off peak"

I don't think that's what they'll do. Charging off peak means being able to store the entirety of the energy demand for the power station in a battery, which is going to be very expensive (assuming 20 cars charge during peak hours every day, that'd mean having to swallow the cost of 20 cars worth of battery per charging station. Good luck getting a good ROI with that).

Instead I think they'll just use the battery so that they never drain the full power of a charge when a car is charging. Drawing a megawatt of current 5% of the time is putting lots of pressure on the local grid, and it can be mitigated by having a battery with the capacity of a car battery that you charge slowly during the whole day (including during peak hour) and discharge fast when a car is charging (for instance, if in average you have 2 cars charging for 5 minutes every hour, you can draw 166kW continuously instead of having bursts of 1MW consumption).

soco
Grombobulous•25m ago
I read an article recently that said something along the lines of “China is pausing on the idea of a BYD Mexico factory over fears of US stealing their technology.”

Isn’t it ironic? Don’t ya think?

Update: link to the article I was reading: https://electrek.co/2025/03/19/chinese-authorities-delay-app...

throwatdem12311•24m ago
Is “flash” the blinding light the car makes when it bursts into flames?
THX1137•15m ago
No, it is a marketing term relating to the chargers BYD is deploying. According to the article the chargers can charge a car with enough electricity to provide a range of 400km in around 5 minutes. Another separate, but important, factor is that these chargers apparently work very well in winter and can provide a similar charging speed at -20°C.
vel0city•7m ago
You must be confused with the Jeep recall where even parked cars just spotaneously catch fire.

It's insane to me how so many people bring up the idea of EVs catching fire when ICE vehicles are constantly having recalls for spontaneously catching fire.

I've had multiple recalls on multiple ICE cars advising me to not park the car near my house. I haven't with my EV.

madhacker•20m ago
BYD's America containment policy to make Americans drool with jealousy. America will still be home to boring vanilla EVs that looked like it was stuck in the 2010s. BYD has a better chance of entering US market by offering tribute to Trump & Co over an inflexible protectionist / labor union friendly Democratic party.
christkv•13m ago
I'm against BYD factories unless car parts shipped from china are not heavily tariffed. You don't want to allow them to ship entire kits from china to final assemble in Europe. You want them to buy from providers in Europe. Otherwise I'm in favor of massive tariffs on their cars to avoid dumping.
beloch•5m ago
This is bold considering the uncertainty in the Canadian market right now.

For those not familiar with the situation...

Before Trump 2.0:

----------------

The auto sectors of Canada, U.S. and Mexico were highly integrated with parts and vehicles crossing the border at scale. There wasn't much EV production and the NA auto sector probably wasn't up to competing with the Chinese auto sector on prices, but there were steep tariffs keeping Chinese vehicles out of NA markets and many foreign ones too. The highly integrated nature of the sector was seen, by most, as a competitive advantage.

Trump 2.0:

---------

Trump wanted vehicles to be manufactured in the U.S., not Canada or Mexico. Because... reasons. He slapped sectoral tariffs (that violate CUSMA/USMCA/T-MEC) on cars and parts from Mexico and Canada. His desire seems to be to cut Canada and Mexico out of the NA auto supply chain but somehow still force Canada and Mexico to buy only American, while maintaining tariffs on Chinese autos. It's not exactly easy or quick to just pick up an auto plant and move it, nor is it clear that being inside the U.S. tariff wall is better than being outside of it. These tariffs have mostly just caused the NA auto sector to become really uncompetitive right when people are starting to notice that Chinese autos are offering a lot more bang for the buck.

Canada responds:

---------------

Canada now allows in 49,000 autos to enter the country without facing the former 100% tariff rate. This was in exchange for China lifting tariffs on some Canola products. That's a small fraction of the Canadian auto market, but it's also 49,000 cars that won't be from the U.S. (or Canada). This prompted Trump to suggest that China will not allow Canada to play ice hockey anymore[1]... Hockey aside, this move has sent a message. If Trump does succeed in completely strangling the Canadian auto sector, why would Canada continue to give U.S. autos preferential access to their largest export market?

The uncertainty going forward:

-----------------------------

Is China's foothold in the Canadian market secure? Is it a bargaining chip that might be traded away, or is it permanent? Are trade talks between Canada, the U.S., and Mexico going to go so poorly that the 49,000 number gets upped significantly? China's response to this door cracking open is, evidently, to ram their foot in as fast as they can. A new EV brand or two would likely not make a huge impact in Canada, but a new rapid charging network might make itself indispensable in very short order. It's not like the U.S. has a response for this. Their main EV brand, Tesla, is poison in Canada because of Musk's links to Trump.

[1]https://globalnews.ca/video/11645943/trump-warns-canada-that...

4m ago
It will absolutely happen. BYD is already in Mexico and the door has been opened in Canada.
•
5m ago
So do those batteries support fast charging AND fast discharging?

Show HN: A live map of how every country thinks the 2026 World Cup will go

https://www.worldcupmap.io/
1•jonesai•57s ago•1 comments

Show HN: Run production AI in your cloud in 5 mins

https://github.com/dagploy/dax
1•yodi•1m ago•0 comments

More AI-generated code doesn't make your team faster. It might slow you

https://twitter.com/awscloud/status/2064449711155589396
2•_____k•2m ago•0 comments

El Niño under way and threatens weather extremes, scientists say

https://www.bbc.com/news/articles/c75ylx7g00xo
1•helsinkiandrew•2m ago•0 comments

Show HN: ShellShot – Send screenshots and screen recordings into Claude Code

https://github.com/APIANT/shellshot
1•rcyeager•2m ago•0 comments

How We Moved Discord Voice to the Edge

https://discord.com/blog/how-we-moved-discord-voice-to-the-edge
1•riv991•2m ago•0 comments

Classer – high-performance zero-shot classification API

https://classer.ai
1•wdrezek•4m ago•0 comments

Digital health companies seek lasting edge amid GLP-1 gold rush

https://www.techtarget.com/virtualhealthcare/feature/Digital-health-companies-seek-lasting-edge-a...
1•brandonb•4m ago•0 comments

The optimal number of unreviewed PRs is not zero

https://jawnb.github.io/unreviewed-prs/
1•gheartt•4m ago•0 comments

We scanned 131 AI-built websites, and the "AI look" wasn't the biggest tell

https://siteblob.com/blog/we-scanned-131-ai-built-websites-ai-look-wasnt-the-tell
1•mirathesmart•4m ago•0 comments

AI Forge: Critical AI Challenges for National Security (DARPA) [pdf]

https://www.darpa.mil/sites/default/files/attachment/2026-06/ai-forge-report.pdf
1•tsumnia•5m ago•0 comments

Show HN: Agent Bondage – Agent Security Stack

https://learntoprompt.org/guides/agent-stack.html
1•nvk•5m ago•0 comments

You're Doing AI Agents Wrong – Engineer the Harness

https://www.youtube.com/watch?v=zf1mLAdaDug
1•dpeterson•6m ago•0 comments

TCS ties up with Anthropic to roll out Claude access to 50k employees

https://www.moneycontrol.com/europe/?url=https://www.moneycontrol.com/news/business/tcs-ties-up-w...
1•shrikant•6m ago•0 comments

Show HN: A better LLM-wiki with multi-path research [550 stars]

https://llm-wiki.net/
1•nvk•6m ago•0 comments

Honeybees Repair Broken Pottery in Kintsugi-Inspired Sculptures

https://mymodernmet.com/ava-roth-kintsugi-ceramics/
1•speckx•7m ago•0 comments

Claude Corps

https://www.anthropic.com/news/claude-corps
1•surprisetalk•7m ago•0 comments

JWST reveals dawn-dusk atmosphere split on ultra-hot exoplanet WASP-121B

https://phys.org/news/2026-06-jwst-reveals-dawn-dusk-atmosphere.html
1•wglb•7m ago•1 comments

Satya Nadella is trying to rein in the tokenmaxxers at Microsoft

https://www.businessinsider.com/satya-nadella-tokenmaxxing-microsoft-rein-in-2026-6
2•_____k•8m ago•0 comments

A short interactive simulation about market timing and financial independence

https://play.ampledawn.com/
1•sankaritan•8m ago•0 comments

Show HN: Blueprint – executable stage gates for AI-assisted product work

https://blueprint.ninochavez.co/
1•chavezabelino•8m ago•0 comments

Gaussian Primes and Black Hole Calculations

https://www.scientificamerican.com/article/are-prime-numbers-hiding-inside-black-holes/
1•ah27182•10m ago•1 comments

Show HN: We Have Been Drawing Flows for Years. But We Are Not Using Their Power

https://wanderer-flow.de/blog/we-have-been-drawing-flows-for-20-years-but-we-are-not-using-their-...
1•steampixel•10m ago•0 comments

Show HN: Remember Doodle for group planning? I made my own as I wanted, simple

https://kalerum.com/en/tools/kadoodle
1•mailforge•14m ago•0 comments

Your AI Agent Is Compromised

https://www.trendmicro.com/vinfo/us/security/news/cybercrime-and-digital-threats/pwning-agentic-a...
2•rantingdemon•14m ago•0 comments

Clang Fable 5: When a compiler builds itself

https://github.com/Lambda0x90/clang-fable-5
3•Lambda0x90•14m ago•0 comments

Show HN: Axona – Speak or type raw thoughts, get an encrypted knowledge graph

https://axona.network
2•eatakishiyev•14m ago•0 comments

Principles of an Accountable AI Agent Network

https://www.tigera.io/blog/five-principles-of-an-accountable-ai-agent-network-how-to-evaluate-any...
2•baroiall•15m ago•0 comments

Core PPI up 9.6% annualized (0.8% MoM) in May

https://www.bls.gov/news.release/ppi.nr0.htm
3•JumpCrisscross•16m ago•0 comments

Webrings as Collective OAuth

https://isaaccorbrey.com/ramblings/webrings-as-collective-oauth
2•speckx•17m ago•0 comments