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Tesla Model X and Model S Performance are closing in on 400 miles with 18650 cells
With the rollout of the Model 3 “refresh,” Tesla has also updated the range of the Model X Long Range Dual Motor AWD and the Model S Performance. Both vehicles are now seemingly closing in on the 400-mile mark, which is quite remarkable in their own right considering that the Model S and Model X still utilize 18650 cells, the same battery form factor that the company used in the original Tesla Roadster.
The Tesla Model X Long Range Dual Motor AWD, which was already impressive with its previous EPA-estimated range of 351 miles per charge, now holds an EPA-estimated range of 371 miles. This speaks a lot about Tesla’s constant improvements to the vehicle, especially considering that the Model X is the heaviest and largest of the electric car maker’s current lineup of EVs.

The same is true for the Model S Performance, the quickest of the company’s current offerings with its supercar-beating 0-60 mph time of 2.3 seconds. While the Model S Performance is not tuned for maximum efficiency like its Long Range Dual Motor AWD counterpart, the vehicle now boasts a range of 387 miles per charge. That’s over twice the EPA range of the Porsche Taycan Turbo S, which has an EPA-estimated range of 192 miles.
The Model S Performance, like the Model X Long Range, utilizes a 100 kWh battery pack comprised of 18650 cells. The size of the two vehicles’ battery packs has remained identical to their initial Model X 100D and Model S P100D iterations, which boasted 295 miles and 315 miles of range per charge, respectively.

Considering that the Model X Long Range and Model S Performance have kept their battery pack size and 18650 cell form factor, it is evident that the massive range improvements Tesla rolled out over the years have been the result of serious optimizations in the vehicles’ design. These include suspension improvements that were rolled out in 2019 in the form of the Model S and Model X’s “Raven” updates, as well as constant battery cell improvements, as per statements from CEO Elon Musk.
The fact that the Model S Performance and the Model X Long Range are now closer to 400 miles while still having the same 100 kWh battery pack and 18650 cells is very impressive. Even more importantly, these developments hint at the exciting specs of Tesla’s next-generation vehicles, which will be using the company’s custom-designed 4680 cells, which have 5x the volume of the Model 3 and Model Y’s 2170 cells, which are, in turn, already larger and more energy-dense than the Model S and Model X’s 18650 cells.
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Tesla rolls out new Supercharging safety feature in the U.S.
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.
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.
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.