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Tesla Giga Berlin’s 4680 supply won’t start in Germany, and it was never supposed to
Tesla’s plans for the initial battery needs and efforts at Giga Berlin were answered in late 2020 by the automaker during the Q3 Earnings Call. While things tend to change on a somewhat regular basis as far as plans for something as large as a vehicle manufacturing plant, Tesla knew that its initial battery fulfillment plans likely wouldn’t come from the planned Giga Berlin 4680 cell production lines. Instead, Tesla will rely on its Kato Road facility in Northern California, where the development and manufacturing of a new, revolutionary electric vehicle battery is taking place. Tesla also plans to utilize strong relationships with its battery cell manufacturers to solve supply concerns during Giga Berlin’s early production dates.
Concerns regarding Tesla’s planned timeline for Giga Berlin have arisen over the past several days, especially after a German media outlet said that CEO Elon Musk was extending the beginning of the German plant’s EV production efforts to January 2022. While the Giga Berlin timeline remains uncertain as far as the exact starting date, those close to the situation, including Brandenburg Economic Minister Jörg Steinbach, told Teslarati yesterday that production should begin in late Summer or early Fall 2021.
EXCLUSIVE: Tesla Giga Berlin isn’t facing a 6-month delay: German Minister
The concerns about Tesla Giga Berlin’s initial production date started to appear around the same time that reports began to surface about Tesla adding the 4680 battery manufacturing unit plans to its application. German regulators take a deliberate and somewhat extended time for large projects, as so many different factors are considered before anything is given ultimate approval. Some indicated that this extensive regulatory process would delay the production efforts altogether. Still, local sources in Germany have clarified that this only prolongs the project altogether and doesn’t have much of an effect on the start of production. The project will just take longer to complete considering Tesla added another element to the Giga Berlin offensive.
As previously mentioned, the addition of the 4680 line to the application likely caused confusion over whether the Tesla Giga Berlin production lines would activate on time. 4680 production at Berlin will not begin before or at the same time as Tesla’s vehicle production at the German plant. However, Tesla’s plans were never to have the Berlin 4680 lines handle the initial vehicle production at the plant. Tesla originally planned for the Kato Road 4680 lines to supply Giga Berlin with cells when they are available.
Drew Baglino, Tesla’s Senior Vice President of Powertrain and Energy Engineering, said during the Q3 2020 Earnings Call:
“We will incorporate 4680 design solutions into many applications in time across both energy and vehicle, and we can use our pilot production facility in Fremont to support the new factory in Berlin as it ramps.”
Additionally, Tesla’s battery suppliers are being called upon to assist in the initial efforts at Giga Berlin.
Musk announced during the most recent Q1 2021 Earnings Call that Tesla is about 12-18 months away from volume production of 4680 cells. While Tesla may be slightly behind schedule regarding the production of the new 4680 battery, there is no indication that it will delay Giga Berlin’s production altogether. In fact, Musk also acknowledged that its suppliers, who Tesla shares “very strong partnerships” with would be called upon to supply cells “as much as they possibly can.”
Musk said:
“…It appears as though we’re about 12 — probably not more than 18 months away from volume production of the 4680. Now at the same time, we are actually trying to have our cell supply of partners ramp up their supply as much as possible. So this is not something that is to the exclusion of suppliers. It is in conjunction with suppliers. So we want to be super clear about that. This is not about replacing suppliers. It is about supplementing the suppliers. So…and we have a very strong partnership with CATL, with Panasonic and LG. And we would…our request to our strategic partners for cell supply is, please make us…please supply us with as much as you possibly can. Provided the price is affordable, we will buy everything that they can make.”
This includes CATL, a Chinese battery producer who manufactures LFP cells for the Standard Range+ Model 3 at Giga Shanghai. CATL began the construction of a cell manufacturing facility in Germany in 2019. LG Chem also started the construction of an EV battery cell manufacturing facility in Poland in 2017, which could be used to supplement Tesla’s battery efforts in Germany. These suppliers have both assisted Tesla with cells in the past, and these companies will likely supplement Tesla’s needs at Giga Berlin, as Musk requested during the Q1 2021 Earnings Call.
Tesla has been aware that the 4680 lines in Berlin will not take care of the initial production phases at the factory. Instead, it will rely on suppliers and its Kato Road 4680 lines in the United States to take care of the first months of production at Giga Berlin.
Tesla (NASDAQ: TSLA) is set to hold its Earnings Call for the first quarter of 2026 on Wednesday, and there are a lot of interesting things that are swirling around in terms of speculation from investors.
With the company’s executives, including CEO Elon Musk, answering a handful of questions that investors submit through the Say platform, fans want to know a lot of things about a lot of things.
These five questions come from Retail Investors, who are normal, everyday shareholders:
- When will we have the Optimus v3 reveal? When will Optimus production start, since we ended the Model S and Model X production earlier than mid-year? What’s the expected Optimus production rate exiting this year? What are the initial targeted skills?
- What milestones are you targeting for unsupervised FSD and Robotaxi expansion beyond Austin this year, and how will that drive recurring revenue?
- How will Hardware 3 cars reach Unsupervised Full Self-Driving?
- When do you expect Unsupervised Full Self-Driving to reach customer cars?
- When will Robotaxi expand past its current limited rollout?
Additionally, these are currently the three questions that are slated to be answered by Institutional Firms, which also answer a handful of questions during the call:
- Now that FSD has been approved in the Netherlands and is expected to launch across Europe this summer, can you discuss your Robotaxi strategy for the region?
- What enabled you to finish the AI5 tapeout early and were there any changes to the original vision? Last week, Elon said AI5 will go into Optimus and the Supercomputer, but one month ago said it would go into the Robotaxi. Has AI5 been dropped from the vehicle roadmap?
- Given the recent NHTSA incident filings, can you update us on the Robotaxi safety data? If safety validation remains the primary bottleneck, why not deploy thousands of vehicles to accelerate the removal of the safety driver?
The questions range through every current Tesla project, including FSD expansion and Optimus. However, many of the answers we will get will likely be repetitive answers we’ve heard in the past.
This is especially pertinent when the questions about when Unsupervised FSD will reach customer cars: we know Musk will say that it will happen this year. Is Tesla capable of that? Maybe. But a more transparent answer that is more revealing of a true timeline would be appreciated.
Hardware 3 owners are anxiously awaiting the arrival of FSD v14 Lite, which was promised to them last year for a release sometime this year.
The Earnings Call is set to take place on Wednesday at market close.
Elon Musk
Elon Musk reveals shocking Tesla Optimus patent detail
What looked promising on paper and in simulations failed to deliver the reliability required for a robot expected to handle delicate tasks like folding laundry, assembling electronics, or assisting in factories and homes.
Elon Musk revealed a shocking detail on the Tesla Optimus patent that was revealed last week. Despite it being made public for the first time, Musk said the company has already moved on from the design, an incredible truth about the development of new technology: things move fast.
Musk dropped a bombshell about the Tesla Optimus humanoid robot hand patent that was released last week. Musk, candidly replying to a post late at night on X, revealed that what is a new technology to many fans and insiders is actually old news to those developing the tech directly.
“We already changed the design,” Musk said. “This one didn’t actually work.”
We already changed the design. This one didn’t actually work.
— Elon Musk (@elonmusk) April 19, 2026
Patents, after all, are often viewed as blueprints for future products. Yet Musk revealed that the rolling contact mechanism—intended to provide smooth, low-friction articulation in the fingers—had already been scrapped after real-world testing exposed its shortcomings.
What looked promising on paper and in simulations failed to deliver the reliability required for a robot expected to handle delicate tasks like folding laundry, assembling electronics, or assisting in factories and homes.
The hand has been one of the biggest challenges for Tesla engineers since Optimus development started years ago. Musk has said that there is not enough recognition for how incredible and useful the human hand is, and designing one for a humanoid robot has been the biggest challenge of all.
Tesla is stumped on how to engineer this Optimus part, but they’re close
This moment underscores the persistent engineering hurdles in achieving reliable humanoid hand dexterity. Human fingers are marvels of evolution: 27 bones, intricate tendons, ligaments, and a network of sensors working in perfect harmony. Replicating that in metal and silicon is extraordinarily difficult.
Rolling contacts promised reduced wear and precise motion, but testing likely revealed issues with durability under repeated stress, grip stability on varied surfaces, or the micro-precision needed for fine motor skills.
These aren’t minor tweaks, but instead they represent fundamental challenges that have plagued robotics teams for decades. Even advanced competitors struggle here—hands remain the Achilles’ heel of most humanoids because the margin for error is razor-thin.
A fraction of a millimeter off, and a robot drops a glass or fails to button a shirt.
What makes Musk’s reply remarkable is how it signals Tesla’s direct communication style on prototype limitations. While many companies guard failures behind glossy marketing and vague timelines, Tesla openly shares setbacks.
Musk was forthcoming about the failure of this recent design. This transparency builds trust with investors, engineers, and fans. It shows Tesla treats Optimus development like true science: rapid iteration, rigorous testing, and zero tolerance for hype that doesn’t match reality.
The disclosure from Musk also highlights Tesla’s blistering pace of development. By the time the patents are published, which is often over a year after the initial filing, the technology has already evolved.
Optimus is far from a static product, and it’s a living project advancing weekly.
In the high-stakes race for general-purpose robots, Tesla’s approach stands out. Admitting a finger-joint design “didn’t actually work” isn’t a weakness—it’s confidence.
True innovation demands confronting failure head-on, and Musk just reminded the world that Optimus is being engineered that way. The next version of those hands is already in testing, and it will be better because Tesla isn’t afraid to say what didn’t work.
Elon Musk
Tesla is sending its humanoid Optimus robot to the Boston Marathon
Tesla’s Optimus robot is heading to the Boston Marathon finish line
Tesla’s Optimus humanoid robot will be stationed at the Tesla showroom at 888 Boylston Street in Boston, right along the final stretch of the Boston Marathon today, ready to cheer on runners and pose for photos with spectators.
According to a Tesla email shared by content creator Sawyer Merritt on X, Optimus will be at the Boston Boylston Street showroom on April 20, coinciding with Marathon Monday weekend. The Boston Marathon finishes on Boylston Street, and the surrounding area draws hundreds of thousands of spectators along with international broadcast coverage. Placing Optimus there puts it in front of a massive public audience at zero advertising cost.
Just got this email. @Tesla’s Optimus robot is coming to Boston.
“Join us from April 19 to 20, 2026, at Tesla Boston Boylston Street showroom to meet Optimus, our humanoid robot, for Marathon Monday. Optimus will be cheering with you on the sidelines and posing for photos.” pic.twitter.com/chxoooO2xV
— Sawyer Merritt (@SawyerMerritt) April 18, 2026
The Tesla showroom is at 888 Boylston Street, between Gloucester Street and Fairfield Street. The final mile of the marathon runs directly along Boylston Street, with runners passing the big stores before reaching the finish line at Copley Square.
Optimus was first announced at Tesla’s AI Day event on August 19, 2021, when Elon Musk presented a vision for a general-purpose robot designed to take on dangerous, repetitive, and unwanted tasks. In March 2026, Optimus appeared at the Appliance and Electronics World Expo in Shanghai, where on-site staff stated that mass production of the robot could begin by the end of 2026. Before that, it showed up at the Tesla Hollywood Diner opening in July 2025 and at a Miami showroom event in December 2025.
Tesla’s well-calculated display of Optimus gives the public a low-pressure first encounter with a robot that Tesla is preparing to soon deploy at scale. The company has previously indicated plans to manufacture Optimus robots at its Fremont facility at up to 1 million units annually, with an Optimus production line at Gigafactory Texas targeting 10 million units per year.
Tesla showcases Optimus humanoid robot at AWE 2026 in Shanghai
Musk has said that Optimus “has the potential to be more significant than the vehicle business over time,” and separately that roughly 80 percent of Tesla’s future value will come from the robot program. Whether that holds depends on production execution. For now, Boston gets a preview of what that future looks like, standing at the finish line on Boylston Street while 32,000 runners pass by.
Tesla Q1 Earnings: What Elon Musk and Co. will answer during the call
Elon Musk reveals shocking Tesla Optimus patent detail
