Hyundai Ioniq 5 charges faster on a Tesla Supercharger than a Model 3 does
With the release of Hyundai’s 2025 Ioniq 5 with native NACS port, owners are heading to Tesla Superchargers to see how the experience is. And it turns out, the away team is beating the home team at charging speed… at least in some metrics.
This has been a busy time for the transition to NACS, the new EV charging standard for North America that was originally advanced by Tesla and now standardized by SAE.
We’ve seen several brands added to Tesla’s “coming soon” list for Supercharger access, and even beyond that, VW and Honda have both made their own announcements that access is coming soon. But we’ve also had a setback, as Kia announced access would be delayed (though some owners are finding ways to charge anyway).
Hyundai is one of the brands that was added to the “coming soon” list, but it also already released a vehicle with a native NACS port, and several of them are out in the wild. Given that the car includes the right port to charge on a Supercharger, it ought to be able to charge no problem, right?
Well, owners are finding that it can, if they go through the normal process for third party vehicles on Tesla Superchargers (download the app, set up payment information, start charge sessions through app, etc) and have the proper adapters or a 2025 car with native NACS. Hyundai hasn’t made it official yet, but it seems plenty possible.
And today we saw one test that shows Hyundai beating Tesla in one metric, even on Tesla’s home turf.
Out of Spec reviews took a Tesla Model 3 and a 2025 Hyundai Ioniq 5 with native NACS port to a local Tesla Supercharger to do a 1v1 charging test, and find out which vehicle charges better and faster on Tesla’s network.
The Ioniq 5 is based on Kia/Hyundai’s joint E-GMP platform, which has been hailed for its exceptional charging performance.
Despite it having a lower peak charge rate than some other vehicles (it tops out at around 230kW), it has an exceptionally broad charging curve, which means that it can maintain that peak charge rate for longer than other vehicles. Other vehicles start charging fast, but slow down rapidly as the battery fills up.
The upshot of this is that charging sessions will be faster with a broad charge curve, as long as you’re charging up to a high state of charge. Hyundai says the Ioniq 5 can charge from 10-80% in just 18 minutes, making it the current charging speed champion (and the Ioniq 6 charges even faster in terms of “miles per minute,” if you account for vehicle efficiency – more on that later).
That broad charge curve shined in Out of Spec’s side-by-side test, which you can see on its YouTube channel. The two cars have similar battery sizes, so it’s actually a pretty close test.
In the test, the Model 3, charging on home turf, charged for 31 minutes and 53 seconds, and 55.7kWh was delivered from the charger to the vehicle.
But the upstart Ioniq 5 managed to gain 59.6kWh in 30 minutes and 37 seconds, a slightly shorter time and slightly more energy delivered.
Those numbers are close enough to call it a wash, but still an impressive showing on away turf.
The victory is all the greater when considering that the Hyundai isn’t even charging at full power. The E-GMP platform uses an 800 volt architecture, and Tesla’s Superchargers mostly use 400 volts (the new V4 Supercharger will provide 400-1000 volts, but most in the wild are V3).
This means that the Ioniq 5 could only achieve a peak charge rate of 123kW in the test, which is nevertheless improved from the ~100kW that earlier model year E-GMP cars have seen when charging at Superchargers. But that’s far lower than the 250kW peak the Model 3 can reach.
But that aforementioned charge curve is still what ended up winning out. Slow and steady won this race.
There were a few difficulties in this specific test. For some reason, the Ioniq 5 randomly stopped charging, and Out of Spec couldn’t figure out why, and had to spend time restarting the charge session – which thankfully didn’t take that long, due to the much faster handshake speed to start charging sessions on Superchargers as compared to CCS stations.
The interruption also meant that the Hyundai had to ramp up its charging speed again. It may also be difficult to precondition a Hyundai – warming the battery to achieve better charging speeds – because so far, Tesla stations aren’t included in Ioniq 5’s navigation system, so preconditioning won’t happen automatically. An update should come soon to enable that.
However, this wasn’t a total victory for the Ioniq 5. Despite achieving a faster charge rate and getting more total energy, the Model 3 still won out in the most important practical metric – miles per minute.
Energy really doesn’t matter that much, what matters is how far it can get you. And the Model 3 is much more efficient than the Ioniq 5. While the cars have similarly-sized batteries, Tesla says the Model 3 can go 363 miles, whereas Hyundai says the Ioniq 5 can go 303 miles. Account for that ~20% higher efficiency, and the Model 3 won today’s test handily.
Now, if we were to try the same test with an Ioniq 6…
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Slate Auto, a new EV startup backed by Jeff Bezos, has poached a key Tesla manufacturing leader to build its electric pickup truck factory in Indiana.
Napoleon Reyes is a US Marine from Indiana who got a degree in mechanical engineering from Purdue after leaving the force.
He then worked a few years at Subaru and Wabash before joining Tesla’s manufacturing team at the Fremont Factory in 2020.
There, he became part of the Model Y production ramp and was quickly promoted to lead the Model Y General Assembly in Fremont in 2022.
Reyes led Model Y GA, one of the most critical parts of vehicle manufacturing, for more than a year before being promoted again to lead new pilot processes at the factory.
Most recently, he led the launch of the general assembly line for the Model Y refresh.
The new engineering manager announced this week that he is leaving Tesla to join Slate:
A bit late on the post but after nearly 5 years working at Tesla in Fremont, I made the difficult decision to leave the Company and move closer to home with my family. It was an incredible experience being part of multiple line expansions and multiple Model Y program launches. Leading and managing the Model Y Refresh launch for GA in Fremont this year tested me professionally however we ultimately succeeded due to our amazing cross functional team collaboration. It’s been an absolute pleasure working with such great people, and I will forever be proud and thankful for everything we accomplished together.
I will be taking on a new role as Senior Manager, Plant Vehicle Engineering at Slate Auto in Warsaw, In.
Slate emerged from stealth mode earlier this year to unveil a new type of electric pickup truck featuring modular customization and an affordable price.
The company raised over $700 million through two rounds of investments from several different investors, including Jeff Bezos. It is currently raising more, which basically guarantees that it will be able to reach production.
The startup acquired a former printing plant in Warsaw, Indiana. It is currently converting to manufacture its electric pickup with a team from legacy automakers and also several former engineers and leaders from Tesla.
Rich Schmidt, an early Tesla manufacturing director, is the head of manufacturing.
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Genesis is preparing to shake things up with its most luxurious SUV yet, the GV90. Thanks to a new patent filing, we are getting a detailed look at how its Rolls-Royce-style coach doors will work.
New patent reveals Genesis GV90 coach door system
When Genesis first unveiled the full-size SUV at the NY Auto Show last March, it wasn’t the stunning design or advanced tech that caught everyone’s attention. It was the coach doors.
Although we were worried it wouldn’t make it to the production model, like many concepts, the Genesis GV90 will be offered with coach doors.
The ultra-luxe electric SUV was first caught with coach doors earlier this year on a car carrier in South Korea. Just last month, the GV90 was spotted in California with a hinge at the rear to open the coach doors.
After several new patents were filed with the United States Patent and Trademark Office for new door latching devices, we are getting a sneak peek at how they are expected to work.
The patents, titled “Cinching Device For Door Latches in Vehicle,” and “Door Latch Device for Vehicles,” give a pretty detailed explanation of how the Genesis GV90’s coach doors will operate. The “Door Latch Device” uses a door striker on the lower side of the door, which is opened or closed by a hinge unit.
Unlike traditional doors, which use the B-pillar for support, the device is attached directly to the door itself, allowing for hinge-like movement.
The cinching device works in a similar way. It’s also attached to the door and part of the vehicle. However, unlike most of its kind, Genesis found a way to use a single cinching device to control multiple units. Again, the device is used for B-pillarless doors that swing open.
Genesis already said that B-pillarless coach doors are now feasible in production vehicles. The patent reveals a glimpse into how the luxury automaker could make it a reality.
Although the Genesis GV90 is expected to be offered with coach doors, they will likely not be standard. Other variants, with traditional door handles, have also been spotted testing in the US and South Korea.
Genesis is expected to launch the GV90 in mid-2026. It will be built at Hyundai’s Ulsan plant in South Korea. The flagship Genesis SUV is scheduled to debut on Hyundai’s new eM platform, which the company said will “provide 50% improvement in driving range.” It will also be loaded with the latest technology, software, connectivity, and Level 3 or higher autonomous driving capabilities.
Source: USPTO
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Environment
Podcast: Tesla Model YL, more Tesla probes and lawsuits, new Nissan Leaf pricing, and more
In the Electrek Podcast, we discuss the most popular news in the world of sustainable transport and energy. In this week’s episode, we discuss the launch of the Tesla Model YL, more Tesla probes and lawsuits, new Nissan Leaf pricing, and more.
The show is live every Friday at 4 p.m. ET on Electrek’s YouTube channel.
As a reminder, we’ll have an accompanying post, like this one, on the site with an embedded link to the live stream. Head to the YouTube channel to get your questions and comments in.
After the show ends at around 5 p.m. ET, the video will be archived on YouTube and the audio on all your favorite podcast apps:
We now have a Patreon if you want to help us avoid more ads and invest more in our content. We have some awesome gifts for our Patreons and more coming.
Here are a few of the articles that we will discuss during the podcast:
Here’s the live stream for today’s episode starting at 4:00 p.m. ET (or the video after 5 p.m. ET:
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