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Tesla’s pilot Roadrunner line will be one of the world’s largest battery cell plants

(Credit: Tesla)

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During Tesla’s Battery Day event, Elon Musk and Drew Baglino announced that its pilot Roadrunner cell production line would be capable of producing about 10 GWh worth of batteries per year. The facility’s output was almost spoken as an aside, with both executives simply stating its target as a given. A closer look at the Roadrunner line’s planned annual output shows that Tesla has created something that’s incredibly disruptive and innovative at the same time.  

As noted by Benchmark Mineral Intelligence, a market intelligence publisher for the lithium-ion battery to electric vehicle (EV) supply chain, the Roadrunner line’s 10 GWh output actually makes it the world’s 13th-largest battery production facility in the world. Granted, the facility is still in the process of being ramped, but once it achieves its full potential, it would be making a significant amount of batteries. Today, after all, Gigafactory Nevada’s output still stands below 40 GWh, and that’s with a monster battery factory that’s already considered as the largest in the world. 

(Credit: Benchmark Mineral Intelligence)

The disruption of Tesla’s next-generation battery and cell production system becomes even more evident when one considers just how compact the system is. The Roadrunner line is located in Tesla’s Kato Road facility, which is comprised of two buildings that cover 184,880 sq ft combined, as per the company’s filings to the City of Fremont. To build a 10 GWh battery production plant from such a space is something truly remarkable. 

It should also be considered that the 10 GWh Roadrunner system is a pilot production line, which means that it’s still bound to be improved over time. The Kato Road facility may hold its place as the world’s 13th-largest battery production plant when it hits its target output, but there will likely be very little that could stop Tesla from upgrading the facility even further, or at least as soon as improvements become available. Such is the culture of Tesla, after all. 

The Roadrunner line’s 10 GWh output is nothing to scoff at. Back in 2010, the entire battery production industry produced 20 GWh, as per data from the European Commission. This means that the pilot Roadrunner line has an output equal to half the world’s battery production output a decade ago. Interestingly enough, neither Elon Musk nor Drew Baglino emphasized these points during the Battery Day event. Any other carmaker would likely have highlighted such a point. 

The innovations that were announced on Battery Day have the potential to change not only the electric vehicle sector but the transportation industry as a whole. With its new battery tech, Tesla will be able to produce batteries at the terawatt level from facilities that are smaller than the completed iteration of Gigafactory Nevada, which is expected to produce 150 GWh. This is key to the company’s long-term goal, which includes producing 20 million vehicles for the global auto market by 2030. 

H/T JPR007.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla rolls out new Supercharging safety feature in the U.S.

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tesla's nacs charging connector
Credit: Tesla

Tesla has rolled out a new Supercharging safety feature in the United States, one that will answer concerns that some owners may have if they need to leave in a pinch.

It is also a suitable alternative for non-Tesla chargers, like third-party options that feature J1772 or CCS to NACS adapters.

The feature has been available in Europe for some time, but it is now rolling out to Model 3 and Model Y owners in the U.S.

With Software Update 2026.2.3, Tesla is launching the Unlatching Charge Cable function, which will now utilize the left rear door handle to release the charging cable from the port. The release notes state:

“Charging can now be stopped and the charge cable released by pulling and holding the rear left door handle for three seconds, provided the vehicle is unlocked, and a recognized key is nearby. This is especially useful when the charge cable doesn’t have an unlatch button. You can still release the cable using the vehicle touchscreen or the Tesla app.”

The feature was first spotted by Not a Tesla App.

This is an especially nice feature for those who commonly charge at third-party locations that utilize plugs that are not NACS, which is the Tesla standard.

For example, after plugging into a J1772 charger, you will still be required to unlock the port through the touchscreen, which is a minor inconvenience, but an inconvenience nonetheless.

Additionally, it could be viewed as a safety feature, especially if you’re in need of unlocking the charger from your car in a pinch. Simply holding open the handle on the rear driver’s door will now unhatch the port from the car, allowing you to pull it out and place it back in its housing.

This feature is currently only available on the Model 3 and Model Y, so Model S, Model X, and Cybertruck owners will have to wait for a different solution to this particular feature.

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LG Energy Solution pursuing battery deal for Tesla Optimus, other humanoid robots: report

Optimus is expected to be one of Tesla’s most ambitious projects, with Elon Musk estimating that the humanoid robot could be the company’s most important product.

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Credit: Tesla Optimus/X

A recent report has suggested that LG Energy Solution is in discussions to supply batteries for Tesla’s Optimus humanoid robot.

Optimus is expected to be one of Tesla’s most ambitious projects, with Elon Musk estimating that the humanoid robot could be the company’s most important product.

Humanoid robot battery deals

LG Energy Solution shares jumped more than 11% on the 28th after a report from the Korea Economic Daily claimed that the company is pursuing battery supply and joint development agreements with several humanoid robot makers. These reportedly include Tesla, which is developing Optimus, as well as multiple Chinese robotics companies.

China is already home to several leading battery manufacturers, such as CATL and BYD, making the robot makers’ reported interest in LG Energy Solution quite interesting. Market participants interpreted the reported outreach as a signal that performance requirements for humanoid robots may favor battery chemistries developed by companies like LG.

LF Energy Solution vs rivals

According to the report, energy density is believed to be the primary reason humanoid robot developers are evaluating LG Energy Solution’s batteries. Unlike electric vehicles, humanoid robots have significantly less space available for battery packs while requiring substantial power to operate dozens of joint motors and onboard artificial intelligence processors.

LG Energy Solution’s ternary lithium batteries offer higher energy density compared with rivals’ lithium iron phosphate (LFP) batteries, which are widely used by Chinese EV manufacturers. That advantage could prove critical for humanoid robots, where runtime, weight, and compact packaging are key design constraints.

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Tesla receives approval for FSD Supervised tests in Sweden

Tesla confirmed that it has been granted permission to test FSD Supervised vehicles across Sweden in a press release.

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Credit: Grok Imagine

Tesla has received regulatory approval to begin tests of its Full Self-Driving Supervised system on public roads in Sweden, a notable step in the company’s efforts to secure FSD approval for the wider European market. 

FSD Supervised testing in Sweden

Tesla confirmed that it has been granted permission to test FSD Supervised vehicles across Sweden following cooperation with national authorities and local municipalities. The approval covers the Swedish Transport Administration’s entire road network, as well as urban and highways in the Municipality of Nacka.

Tesla shared some insights into its recent FSD approvals in a press release. “The approval shows that cooperation between authorities, municipalities and businesses enables technological leaps and Nacka Municipality is the first to become part of the transport system of the future. The fact that the driving of the future is also being tested on Swedish roads is an important step in the development towards autonomy in real everyday traffic,” the company noted. 

With approval secured for FSD tests, Tesla can now evaluate the system’s performance in diverse environments, including dense urban areas and high-speed roadways across Sweden, as noted in a report from Allt Om Elbil. Tesla highlighted that the continued development of advanced driver assistance systems is expected to pave the way for improved traffic safety, increased accessibility, and lower emissions, particularly in populated city centers.

Tesla FSD Supervised Europe rollout

FSD Supervised is already available to drivers in several global markets, including Australia, Canada, China, Mexico, New Zealand, and the United States. The system is capable of handling city and highway driving tasks such as steering, acceleration, braking, and lane changes, though it still requires drivers to supervise the vehicle’s operations.

Tesla has stated that FSD Supervised has accumulated extensive driving data from its existing markets. In Europe, however, deployment remains subject to regulatory approval, with Tesla currently awaiting clearance from relevant authorities.

The company reiterated that it expects to start rolling out FSD Supervised to European customers in early 2026, pending approvals. It would then be unsurprising if the company secures approvals for FSD tests in other European territories in the coming months. 

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