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Tesla’s battery supply constraint is ending, price parity with gas cars is at hand
Tesla’s Semi is coming, and it will be here sooner than expected. But the production of the vehicle could be pointing to one thing: Tesla is no longer battery constrained.
Past the face value portion of the story, something much bigger is happening. While the Semi entering a “volume production” phase is big news, the development of the commercial vehicle comes at a time where battery production for Tesla seems to be the main focus of the electric automaker.
In Q3 2019, CEO Elon Musk indicated that a shortage of battery cells primarily drove the Semi’s delay. If Tesla wanted to start producing the Semi, the company would have to make cells available for it. That would mean one thing: cutting back on cells utilized for Tesla’s mass-market vehicles, which at the time was the Model 3.
Building the Semi before a sufficient battery production and supply chain was established would have been detrimental to the company’s long-term plans. Of course, the Model 3 has been Tesla’s most popular vehicle since it started deliveries in 2017. Its affordability has helped Tesla reach a new market, which was all apart of Elon’s original Master Plan.
With the Model Y now being produced in Fremont, Tesla now has two mass-market vehicles that are affordable by a vast segment of the population. Ultimately, this means that Tesla needed to levy a majority of its available lithium-ion cells for the Model 3 and Model Y. Unfortunately, the Semi just was not a priority over those two cars. Why would it be? The Model 3 (and Model Y now) are Tesla’s two top sellers. Therefore, the battery needs pointed toward the 3 and the Y, with Semi production being dependent on the availability of battery cells.
If we think about Musk’s statement from Q3, he indicated that the Semi production would be based on when Tesla could manufacture the appropriate amount of lithium-ion batteries to power the Class 8 vehicle. Although demand for the 3 and the Y continues to increase, so is Tesla’s production rate, and it could be indicative that the Silicon Valley-based electric car maker is pumping out enough batteries to produce all of its vehicles without any worries of possible cell shortages.
Ultimately, this idea could lead to another significant development in the EV world as a whole, and that is price parity.
For a long time, analysts have pinpointed the electric vehicle movement’s price parity at $100/kWh for battery cell production. This means that when cells are produced at a high enough rate, batteries will be lower in cost. Then, electric cars will be the same price as gas-powered machines, making the argument of “EVs are too expensive” obsolete.
The Tesla Model 3 Performance utilizes a 75 kWh battery pack. If battery production is at $120/kWh, this would mean that the Model 3 Performance’s battery pack costs $9,000 to produce. The car’s $54,990 price tag, hypothetically at $120 per kWh, is made up of a battery pack that costs about $9,000.
If Tesla could produce batteries at a high enough rate where the cost per kWh could come down to $100, the battery pack would only cost $7,500 to build, meaning an additional $1,500 comes off the price of the vehicle altogether. Tesla’s goal is to produce enough battery cells to justify this pricing point for its cars. Also, $100/kWh is just the price parity point, and not where the cost will ultimately end up. If demand continues to increase and battery cell production keeps growing, the cost could get even lower.
If Tesla has enough batteries to justify producing mass quantities of the Model 3 and Model Y, along with the sizable battery packs of the Semi, parity could be coming sooner than expected. Most analysts indicated 2023 as the year when battery production would be on a level where EV prices could compete with their petrol-powered counterparts.
However, if the Semi is ready for a production run now, Tesla may have enough cells to introduce a more affordable pricing model for its vehicles. This could, in turn, lead to even higher production numbers, increased demand, and a sharp increase in the company’s delivery numbers.
The announcement of the Tesla Semi meant much more than the company producing its commercial vehicle. It means batteries are no longer in restricted amounts, the technology is improving, and the prices of the company’s vehicles could be coming down soon. With this, it appears that Elon Musk’s endgame with his Master Plan may be getting closer to reality.
A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.
The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.
There were no injuries reported.
🚨 A Tesla Semi reportedly caught fire, with California Highway Patrol confirming. The Semi was on I-880 SB
An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year
— TESLARATI (@Teslarati) October 28, 2026
The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.
However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.
@Tslachan From on of the videos looks like it’s an old Semi (not the refresh version that recently started production) https://t.co/KzwmR2kXow
— Area Under The Curve 🎗️ (@AreaUnderCurve) October 28, 2026
At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.
The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.
The truck’s driver said that the Semi caught fire, but he did not have an explanation.
An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.
Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.
A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.
“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”
🚨 Here’s the first look at Tesla’s Emergency Drive Away function in action:
Apparently this driver accidentally enabled it and drove forward; you can see the Supercharger pull with the car.
Tesla said previously this would cost up to $25k if not used properly. https://t.co/B4qQRrsO6B
— TESLARATI (@Teslarati) October 28, 2026
Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.
Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.
Tesla constitutes the following situations as reasonable justifications for activating the feature:
- You face an immediate threat to your life or personal safety.
- You must leave the area immediately.
- Exiting the vehicle is unsafe.
- Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.
After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.
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Tesla’s Cybercab battery design could make robotaxis even cheaper
Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.
Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.
Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.
The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.
Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.
The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”
That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.
The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.
Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.
Tesla Semi catches fire in California: what we know
Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world
