News
How Tesla Battery Day can silence critics once and for all
The hype surrounding Tesla’s Battery Day is very real. Enthusiasts and unknowns are talking about the potential findings that Elon Musk and his crew could unveil on September 22nd, and the event could make way for Tesla to become much larger than it already is. However, there is a good chance that the critics of the electric automaker will have little to say after the event, and if Tesla plays it right, it could be the beginning of the end of the Tesla FUD (Fear, Uncertainty, Doubt) movement.
It is understandable to assume that Tesla doubters will always exist. Some companies that have the best intentions still have their haters, and that’s just human nature. While Tesla will always have people who will doubt its intentions as a company, Battery Day could be the proverbial duct tape over the lips of the most vocal skeptics.
Tesla still has work to do, and Battery Day’s total appeal comes down to whether the company can manage to live up to the hype. Many rumors are circulating around what Elon Musk could unveil at the event, some related to batteries, and some aren’t. But whatever happens, it really comes down to the “Wow” factor, and whether Tesla can manage to attain that with their findings and unveilings.
To me, the most significant thing Tesla could announce is price parity, and something that is relatively an extra is the possibility that Musk could unveil the Plaid Powertrain. But if the company really wants to make a mark, several things, in my opinion, have to be confronted during the event.
Million-Mile Battery
Tesla’s Million-Mile Battery is almost certainly the most confirmed element of Battery Day. Developments from Jeff Dahn and his team of researchers have come up big for Tesla recently with electrolyte solutions and new studies that show revolutionary energy density measures. Reports across the globe have essentially confirmed that Tesla will unveil this development at the event, and it will be a big win for the electric automaker.
Having a battery that will last as long as two or three vehicle chassis means that when the increased longevity is combined with increasing production, Tesla will have a relatively large-scale supply of batteries available at their disposal. This opens the doors for many things, including price parity and the possibility of becoming a supplier for other electric car companies.
Price Parity…or close to it
Price parity with gas cars wouldn’t only be monumental for Tesla, but for EVs in general. It would prove that gas cars are not always going to be the most economical option for drivers, and the price of battery-powered cars would drop. Having Tesla announce price parity or something close would mean the premium EV brand would have the most affordable vehicles in terms of EV tech and range. It could mean the company’s growth may accelerate much quicker than initially anticipated. If the cars are cheaper, a lot of people will buy them, obviously. While $35,000 is reasonable for the Model 3 Standard Range, many people still are unwilling to spend that much on any car.
Getting the price of batteries down would literally begin the destruction of legacy automakers as if it hasn’t already started. Tesla being the best EV brand and having the best prices per kWh would be so massive, I don’t think many people can begin to fathom the possibilities.
This is a preview from our weekly newsletter. Each week I go ‘Beyond the News’ and handcraft a special edition that includes my thoughts on the biggest stories, why it matters, and how it could impact the future.
Status as a cell supplier for other companies
If Tesla can figure out price parity and long lifespan battery cells, the company will be well on its way to becoming a battery supplier. Long term battery life, combined with affordability, will be a big plus for Tesla’s plans to become a supplier for other EV brands. Having cheap batteries that are high-quality and offer an extended lifespan will be a no brainer. Tesla’s most notable competitors will be forced to source their cells from the Silicon Valley-based company.
Plaid Powertrain for the Model S
The Plaid Powertrain has been highly-anticipated for about a year, and there is a good chance Tesla unveils it at Battery Day. It seems that the issue with putting it into production last year was along the same lines as putting the Semi into production too early: battery shortages. The Plaid Powertrain will have a larger pack, meaning more cells, and putting it on Tesla’s menu too early would have spoiled their plans for the cars that are more crucial to the future of the company. The Model 3 is an excellent example of this. It’s a mass-market car, and the batteries should go toward these efforts instead of a sedan that has increased performance.
The Semi was not put into production because battery cells were not plentiful enough. Creating the Semi and fulfilling the preorders that the company had would have been troublesome for Tesla’s mass-market vehicle push, and it certainly wouldn’t have been the smartest strategy. However, Musk said that a “volume production” push of the Semi needed to occur soon, which basically confirms that the shortage is no longer an issue. The Plaid Powertrain will likely be the next piece of Tesla’s puzzle to be announced.
Is there the possibility that Tesla will shock us with something completely unexpected?
Of course, we’re talking about Elon Musk. The guy that unveiled the next-Gen Roadster as a surprise and the guy that rolled off a Cyberquad after the Cybertruck unveiling. While those are just a vehicle and a four-wheeler, we’re talking about Tesla’s most anticipated event, perhaps ever. There is a lot of potential for groundbreaking announcements next Tuesday, and there is no shortage of things that Musk could announce.
He has said on numerous occasions that Battery Day is going to be insanity and that it will likely blow a lot of minds. But what will transpire exactly, only a few people really know, and there is little sense in trying to guess what Musk will have for us on September 22nd.
A big thanks to our long-time supporters and new subscribers! Thank you.
I use this newsletter to share my thoughts on what is going on in the Tesla world. If you want to talk to me directly, you can email me or reach me on Twitter. I don’t bite, be sure to reach out!
United Airlines CEO Scott Kirby said that SpaceX’s Starlink satellite internet is its leading competitive advantage in the U.S. airline industry. However, in recent comments, while he described the service as “the biggest competitive advantage” the carrier currently holds, he also acknowledged that the edge is temporary.
“…everybody eventually is going to have high-speed low earth orbit internet connectivity. It’s going to be a must-have. We are going to have a few years of being the only airline that has it at scale, and that’s our mission,” Kirby said. Until everyone has it, United aims to capitalize on its head start by converting trial users into long-term loyal customers.
🚨 United CEO Scott Kirby calls Starlink “the biggest competitive advantage,” but says it’s temporary.
“I think it’s the biggest competitive advantage. And it’s temporary. Like it’s not, everybody eventually is going to have high speed low earth orbit internet connectivity. It’s going to be a must-have. But we are going to have a few years of being the only airline that has it at scale, and that’s our mission.”
“I think we’re going to convince customers that United is the best airline and we’re going to get customers to switch their loyalty, to get our credit card, switch their loyalty to United. Not because of Starlink. They’re going to try us for Starlink and they’re going to stay with all the other technology, and everything else is better, and the technology in particular is so much better than technology other, and it’s accelerating because we’ve got the right tech stack, and because we’re like, our gap is getting wider and wider with our technology every day.”
Next: LAX becomes United’s first 100% Starlink hub in the first half of next year, and the United app will show your Starlink odds for each flight. https://t.co/hToyFWaWj7
— TESLARATI (@Teslarati) October 27, 2026
United has moved faster than its rivals on Starlink installations. As of mid-to-late October 2026, the system was on roughly 43 percent of its fleet, with plans to reach 61 percent by year-end, 87 percent by June 2027, and full fleet coverage by the end of next year.
The airline already operates more Starlink-equipped flights than the rest of the U.S. industry combined. Los Angeles International Airport is scheduled to become United’s first 100 percent Starlink hub in the first half of 2027, and the carrier’s app will display the likelihood that any given flight has the service.
Kirby has pointed to early evidence that the offering influences booking decisions. Some passengers loyal to other airlines are already switching flights for Starlink connectivity, something the airline, along with American Airlines, has tried to leverage against competing airlines. Both companies used status-match programs, and some of those customers are pursuing company-specific credit cards, which signals an intent to stay.
Once onboard, these customers encounter the airline’s broader investments in aircraft, larger seat-back screens, oversized bins, connection tools, and a mobile app that Kirby says outperforms competitors. Wi-Fi satisfaction scores on Starlink-equipped planes have been reported to be nearly double those on aircraft with other systems.
Competitors are moving slowly to do the same. Southwest Airlines began installations in 2025 and expects to complete them soon. Delta is pursuing Amazon’s Leo system, while American expects to start Starlink work in early 2027 and has not yet detailed regional-fleet plans. This timeline gap gives United a multi-year window in which it remains the only major U.S. carrier offering Starlink at scale.
Kirby has framed the strategy as pressing that advantage while simultaneously widening gaps in other technology areas so that customers who try United for the Wi-Fi remain for the overall experience.
The approach reflects a calculated bet that superior in-flight connectivity can accelerate share gains and support longer-term financial targets, including a 10 percent pre-tax margin goal.
High-speed internet is particularly valued by premium and business travelers who can work or stream reliably. As low-Earth-orbit service becomes ubiquitous, the temporary nature of the pure connectivity edge means United’s retention will depend on whether its other product and operational improvements keep pace.
Tesla Cybercab skips the traditional paint shop entirely, marking an unorthodox process for coloring the fully autonomous vehicle. However, the decision was a smart one, as it slashed factory costs, floor space utilization, and complexity, since Tesla relied on specialized alloys and in-mold coloring.
Munro Live was given the opportunity to do a factory walkthrough with Tesla Vice President of Vehicle Engineering Lars Moravy, who explained and detailed how Cybercab production at Giga Texas eliminates one of the automotive manufacturing industry’s most expensive and space-hungry elements.
A conventional paint line can cost hundreds of millions of dollars and require a million man-hours to build. Moravy framed the choice around Tesla’s core rule: “Question the requirements: why do you need paint?”
🚨 Super cool quote from the Cybercab breakdown on the decision to avoid traditional paint:
“One of the most expensive parts of the factory is a paint line… a few hundred million dollars, a million man hours to build one… rule number one at Tesla, question the requirements. Why do you need paint?… the alloys we use in the castings… don’t oxidize and reduce strength over time.” -@larsmoravy
Model Y and Cybertruck bodies are fully coated and painted. On Cybercab, only the side pieces get the anti-corrosion dip coat, and there’s no paint shop at all, which helps cut factory floor space per car by about 50%.
— TESLARATI (@Teslarati) October 26, 2026
The structural answer lies in material selection. The aluminum alloys used in Cybercab’s front and rear castings do not oxidize and lose strength over time, the way many common automotive aluminum alloys do. Only the side modules, built around hot-stamped boron-steel door rings, receive an anti-corrosion e-coat, or dip coat. Front and rear modules skip coating altogether.
Model Y and Model 3 bodies, by contrast, are fully coated and painted.
Exterior colors come from the plastics shop, which Tesla engineers described as “our paint shop” for the Cybercab. Body panels are produced via reaction injection molding, referred to as RIM. Color is then mixed into a polyurethane resin at the mix head immediately before injection, so the panel emerges already colored with a Class-A surface.
Robots trim overflow to control sink marks and flow lines. The process avoids conventional spray-paint defects like orange peel and paint bleed. Scratches can still be repaired with compatible coatings that behave “basically like paint.” Because color is integral rather than a surface layer, shallow scratches do not expose a contrasting undercoat.
The secret behind Tesla’s Cybercab Gold goes well beyond just the color
Tesla has also explored related approaches, including in-mold lamination and painted films on stamped panels.
The manufacturing payoff is substantial because removing the paint shop, combined with the “unboxed” modular process that builds and tests front, rear, side, and center modules in parallel before a short final assembly, cuts factory floor space per vehicle by about 50 percent.
Final assembly itself uses only about 25 automated stations, far fewer than the typical Model Y line, and the overall line runs at about 78 percent automation, Moravy said. The approach also eliminates volatile organic compound emissions associated with traditional spray painting for these panels and shortens the coloring cycle from hours to minutes.
Cybercab’s paint strategy is clearly less about aesthetics than about systematically deleting capital-intensive, energy-heavy, and space-consuming steps once material science and process design make them unnecessary. It is a concrete example of Tesla applying first-principles questioning to one of the auto industry’s most entrenched factory requirements.
Investor's Corner
Tesla has a Cybercab problem nobody saw coming
Tesla’s Cybercab line now builds robotaxis faster than Tesla can deploy them, Lars Moravy says.
Tesla’s Cybercab line in Texas can now build the two seat robotaxi faster than the company can put it into service, according to Lars Moravy, Tesla’s Vice President of Vehicle Engineering. “We don’t run every day because the line can run so fast. It’s currently outpacing our deployments,” Moravy said in a new Cybercab deep dive from Munro Live. “So, it’s a bit of a race right now. Who’s going to go faster? Right now the manufacturing line’s ahead.”
Tesla’s official Robotaxi account shared a Cybercab analysis video on X on Monday, calling it a “Cybercab engineering deep dive.” Moravy’s comments go further than what he told analysts on the Q3 earnings call last week, when he said the Cybercab line’s listed capacity of more than 125,000 units a year undersells what it can actually run.
The tour shows where that speed comes from. Tesla’s unboxed process splits the Cybercab into front, rear, side and center modules that are built and tested on their own before they meet on a short final line. That final line has just 25 fully automated stations, which Tesla’s team estimated is a fifth to a tenth of what a Model Y needs. The full line is about 78% automated, the framing line is already at 100%, and the layout uses roughly 50% less floor space per vehicle. The stated goal is “100% automation in 10 second cycle time,” or one finished Cybercab every 10 seconds.
Tesla also deleted the paint shop. Only the side modules are coated, and the exterior panels get their color inside the molding machine. Engineers said the car is designed to run at least 500,000 miles, which matters for a vehicle that will spend most of its day carrying riders.
The battery got the same treatment. The Cybercab uses an 88S6P pack of 4680 cells in a steel enclosure, a first for Tesla, with each module potted separately so a single failed module can be swapped instead of the whole pack. Wireless battery management boards replace a wiring harness, and new contactors are fast enough to drop the pyro fuse entirely. Tesla’s battery director graded the pack an A minus, compared with a D for the Model Y structural pack and a B minus for Cybertruck. Up front, the drive unit runs an 11:1 gear ratio versus roughly 9:1 on most Teslas, since the Cybercab does not need a high top speed.
Cybercab engineering deep dive — Robotaxi (@robotaxi) October 26, 2026
The deployment side is now the bottleneck Moravy described. Tesla had more than 50 Cybercabs working the Formula 1 weekend in Austin, and Texas records show 463 Cybercabs registered. Tesla said on its earnings call that Cybercab service will launch in Dallas next month, and Moravy said the company is aiming to get Cybercabs to customers by the end of 2026. Every unit built so far has gone into Tesla’s own fleet since the line moved into volume production in April.
Munro Live also asked when it could get a Cybercab to tear down. Tesla’s answer: “Not yet.”
Starlink is ‘biggest competitive advantage,’ but it’s temporary, United CEO says
Tesla Cybercab’s unorthodox paint process explained
