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Tesla celebrates key milestone for 4680 battery cell production cost

Tesla produces in-house 4680 battery cells at its Gigafactory in Texas, along with getting them from outside suppliers.

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Credit: Tesla | X

Tesla has highlighted an important 4680 battery cell milestone in recent weeks, noting that its Texas manufacturing team for the hardware has scaled production enough to outpace the cost-effectiveness of outside suppliers.

During Tesla’s first-quarter all-hands-on-deck meeting held a few weeks ago, CEO Elon Musk shared a number of recent milestones. One of them, as was also reiterated after the meeting by Michael Guilfoy, Tesla’s Giga Texas Director of Cell Manufacturing, is the fact that the company’s in-house 4680 battery cells have earned their place as the lowest-cost battery cell produced per kWh.

Musk also pointed out during the meeting that the achievement is particularly impressive, given that many of the company’s suppliers dedicate all or most of their businesses to battery cell manufacturing, while Tesla focuses on several other business sectors and still managed to surpass the milestone.

Check out Guilfoy’s full message below, as posted on LinkedIn, or watch Tesla’s Q1 all-hands meeting below that.

Been waiting to acknowledge this great achievement by Tesla’s 4680 Cell Manufacturing team since the end of last year….but as Elon announced last night, our Cell Manufacturing team in Texas reached a huge milestone at the end of 2024 with becoming the lowest cost per kWh battery cell producer for Tesla! The grit, determination, and passion of our team is unbelievable in helping deliver our mission.

Big thank you to our entire engineering and production teams for making this happen!! It’s the greatest honor of my career to lead this team and make such an impact in our mission to accelerate the world’s transition to sustainable energy.

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And we aren’t done yet! 2025 will have more big milestones with fully ramped dry battery electrode manufacturing to deliver even more cost efficiency. Exciting teams continue to be ahead. Cheers to this world-class team!

READ MORE ON TESLA’S 4680 BATTERY CELLS: Tesla working on four dry cathode 4680 battery variants: The Information

Although Tesla also sources its 4680 batteries from multiple other suppliers, including Panasonic and LG Energy Solution, the company has also been working to scale up in-house production of the cells over the past few years. In September, Tesla officially surpassed a milestone of producing 100 million 4680 battery cells, after surpassing 50 million last June, and exceeding 20 million in October 2023.

Tesla initially unveiled the 4680 battery cell during a 2020 “Battery Day” event, during which it explained the cost and efficiency benefits of the battery size in comparison with the 2170 form factor.

Tesla loses battle to keep 4680 battery tech under wraps

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Zach is a renewable energy reporter who has been covering electric vehicles since 2020. He grew up in Fremont, California, and he currently lives in Colorado. His work has appeared in the Chicago Tribune, KRON4 San Francisco, FOX31 Denver, InsideEVs, CleanTechnica, and many other publications. When he isn't covering Tesla or other EV companies, you can find him writing and performing music, drinking a good cup of coffee, or hanging out with his cats, Banks and Freddie. Reach out at zach@teslarati.com, find him on X at @zacharyvisconti, or send us tips at tips@teslarati.com.

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Tesla says fixes on Full Self-Driving’s two biggest issues are on the way

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Tesla Full Self-Driving is set to receive improvements to address its two biggest issues, according to a company engineer.

Director of Engineering at Tesla AI, Phil Duan, revealed in a post on X that improvements to both pothole avoidance and navigation “are coming,’ something we have heard many times in the past. However, there are a few things that seem to hint that things might be different this time around.

Pothole avoidance, navigation, speed control, and left lane camping are some of the most prevalent and frequently mentioned shortcomings of the Full Self-Driving suite. These are a few of the biggest issues that have kept Tesla Full Self-Driving as a Supervised suite, meaning drivers must remain attentive during operation.

Pothole Avoidance

Pothole avoidance was first mentioned as an “Upcoming Improvement” with the Tesla Full Self-Driving v14.3 update back in early April of this year. It was listed alongside “Expand reasoning to all behaviors beyond destination handling.”

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Tesla is fixing Full Self-Driving’s pothole problem

It’s been six months since we first saw pothole avoidance explicitly mentioned, and it has not moved beyond that and joined the main release notes yet.

Tesla has not shed any light on why pothole avoidance has been such an issue for it to solve, but it also has issues identifying large bumps much of the time, so its modeling of sudden changes in road conditions is likely pretty weak at this particular point. I’ve had more issues with large bumps than potholes, personally, but both are issues that need to be resolved.

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It makes sense that things might be pretty close to being released to the public, as we are going on such an extensive period of time between it being mentioned and it actually being deployed.

Navigation

Navigation is likely the most painful part of using Full Self-Driving, as it routinely takes strange routes, has trouble with local rules (like Except Right Turn Stop Signs in Pennsylvania), and sometimes does not realize that maneuvers it is suggesting are against the law. Turning out of my neighborhood, you cannot turn left, yet my Model Y still suggests it roughly 70 percent of the time when I’m leaving.

However, Tesla might be close to a breakthrough on this. With the Summer Update, Tesla added “Preferred Routes” alongside “Automatic Navigation.”

Preferred Routes prioritized roads that the driver had actually taken before, instead of always defaulting to what the vehicle believes is the most efficient path. This has already solved many of my issues. Formerly, I would turn off the Online Routing setting, and that would eliminate most of my complaints with routing, but then you lose out later on the Live Traffic Visualization.

Tesla’s Navigation has improved tremendously thanks to the Preferred Routes release with the Summer Update, but it still could use some polishing, as it still suggests strange routes from time to time, and it also has a lot of issues getting out of a parking lot. I find that those truly confuse FSD sometimes.

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SpaceX’s midnight spy satellite launch quietly set a new record

Falcon Heavy launched its first NRO mission while SpaceX landed four boosters in one day.

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SpaceX's Falcon Heavy lifts off from Launch Complex 39A at NASA's Kennedy Space Center at 11:54 p.m. ET on October 1, 2026, carrying the classified NROL-97 mission for the National Reconnaissance Office. (Credit: SpaceX)
SpaceX's Falcon Heavy lifts off from Launch Complex 39A at NASA's Kennedy Space Center at 11:54 p.m. ET on October 1, 2026, carrying the classified NROL-97 mission for the National Reconnaissance Office. (Credit: SpaceX)

SpaceX closed out one of its busiest days ever with a midnight Falcon Heavy launch from Florida, and the rocket’s two side boosters came home to finish off a landing record the company had never set before.

Falcon Heavy lifted off from Launch Complex 39A at NASA’s Kennedy Space Center at 11:54 p.m. ET Thursday carrying NROL-97, a classified payload for the National Reconnaissance Office. It was the first time the NRO has flown on Falcon Heavy after 22 missions on Falcon 9, and the first NRO mission bought through the National Security Space Launch Phase 3 Lane 2 contract awarded in 2025, according to Spaceflight Now.

Roughly eight minutes after liftoff, side boosters B1104 and B1072 touched down at Landing Zones 1 and 2 at Cape Canaveral Space Force Station, setting off double sonic booms across Brevard County. B1104 was flying for the second time and B1072 for the fourth. Both last flew on August 30 on NASA’s Nancy Grace Roman Space Telescope, making NROL-97 the quickest turnaround between Falcon Heavy missions to date. The brand new center core, B1106, was expended in the Atlantic so the payload could reach its high energy orbit, and SpaceX’s mission page noted the fairing had previously flown on the NROL-95 mission in July.

The two landings capped a record for SpaceX. Earlier Thursday, Falcon 9 booster B1101 returned to Landing Zone 40 after sending the Crew-13 astronauts to the International Space Station, and another Falcon 9 launched the Transporter-18 rideshare with 130 payloads from Vandenberg Space Force Base in California. Spaceflight Now reported it was the first time SpaceX has landed four boosters in a single day, wrapping up the triple header Teslarati previewed on Wednesday.

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The mission also brought Landing Zone 1 back for what may be its final landing. SpaceX first landed an orbital class booster there in December 2015, but its lease on the former Launch Complex 13 site ended in 2025 as the company moved Florida landings to new pads at its own launch complexes. With LZ-40 already holding the Crew-13 booster, SpaceX brought LZ-1 back into service for one more night. Launch tracker Next Spaceflight listed NROL-97 as the final expected landing at the site.

NROL-97 adds to a fast growing stack of national security work for SpaceX. The company has flown four Space Force missions from Vandenberg since mid August, several believed to carry Starshield satellites, pushing its Pentagon contract total for 2026 past $8 billion. Elon Musk was also named this week to help lead the Pentagon’s Project Meridian study on the future of warfare.

The Florida doubleheader stood out for another reason. The Space Coast saw only one launch in all of September as SpaceX shifts more of its East Coast infrastructure toward Starship, which reached orbit for the first time on Flight 14 just three days earlier.

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Investor's Corner

Tesla deliveries best Wall Street guesses alongside second-best energy quarter

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Credit: Tesla Europe & Middle East | X

Tesla (NASDAQ: TSLA) reported strong delivery figures that beat Wall Street guesses, and they were revealed alongside the company’s second-best quarter in terms of energy deployments ever.

Tesla announced this morning that it delivered 486,532 cars in Q3, while producing 464,391, exceeding analyst consensus, which sat around 462,000 units.

Meanwhile, Tesla reported 13.7 GWh of energy storage deployed for the quarter. That’s the second-best quarter Tesla has ever reported on that side of things.

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Vehicle Deliveries

Deliveries were strong, and it was another quarter when Tesla had the opportunity to outshine the Wall Street pundits who are quick to criticize and slow to give credit. Tesla saw a slight decrease in deliveries compared to Q3 2025, but Tesla still had the $7,500 EV Tax Credit to use to help incentivize consumers to pick an EV.

A small decrease of 2.1 percent is pretty telling because it shows Tesla does not need massive federal credits to convince consumers to purchase its vehicles.

It was also the company’s third-best performance all-time in terms of deliveries, trailing that of Q3 2025 with 497,099 deliveries and Q4 2024, when the company handed over 495,570 cars.

We reported several days ago that Tesla Showrooms across the United States were completely bare of inventory or unclaimed units. Many locations also removed Demo Drive units, which had been bought by customers looking to take delivery sooner.

Tesla showrooms picked clean ahead of Q3 end as demand looks strong

Energy Generation

Tesla’s Energy Generation performance in Q3 was also very strong, as the company deployed 13.7 GWh of energy storage over the past three months. The only quarter when Tesla reported stronger energy deployment figures was Q4 2025, when 14.2 GWh of energy storage was deployed.

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Tesla’s Q3 performance in energy generation has continued to grow each quarter, with the company increasing its deployments by ten-fold since Q3 2021, when just 1.3 GWh was deployed.

It is also nearly double what it was in Q3 2024, when the company reported 6.9 GWh. This is one of Tesla’s quickest-growing divisions, and it flies under the radar with fans and analysts, as many are focused on self-driving or the vehicles themselves.

Tesla Stock

Shares rose 5.07 percent to $372.06 at just after 10 a.m. on the East Coast. This is a rarity for Tesla after a strong delivery report, as positive news usually brings the stock down. Many quarters with extremely robust delivery reports have not been as kind to the Teslanaires of the world.

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