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Tesla’s next ‘big unveil’ after Model Y will be its battery growth story

The Tesla Semi visits Yandell Truckaway. (Photo: Arash Malek)

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6 years ago

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Tesla’s 2020 is bound to be a historic year, for more reasons than initially expected. Unlike 2017 and 2019, which were marked by impressive product unveiling events for the Semi, next-gen Roadster, Model Y, and Cybertruck, 2020 is poised to be a year where Tesla simply optimizes its operations to such a point that the company becomes sustainably profitable.

Save for 2018, Tesla has adopted the practice of unveiling new vehicles and energy products in a steady stream. This will not be the case this year, since Elon Musk himself has noted following the Cybertruck’s unveiling event that Tesla will not be holding formal vehicle launches for a while. The Model S Plaid is expected to be rolled out later this year, but the vehicle’s launch could be similar to that of the Raven Model S and X — subtle and simple.

Unlike previous years, Tesla will likely not be focusing too much on the rollout of an upcoming vehicle after initial Model Y deliveries are conducted. With the all-electric crossover being manufactured and delivered to customers, Tesla will likely end up focusing its resources on strengthening its core technology, particularly its batteries. This will partly be due to the arrival of three vehicles that are set to be released soon: the Tesla Semi, the next-gen Roadster, and the Cybertruck.

Part of the reason behind the Model Y’s quicker than expected production ramp is due to the vehicle’s similarity to the Model 3. The two midsize EVs share 75% of their parts, which meant that their production process is not too different from each other. Tesla learned a hard lesson with the Model X and the Model S by over-designing the SUV and making it far too different compared to its sedan sibling, which resulted in massive production delays. This lesson appears to have been learned and adopted for the Model Y ramp.

The Cybertruck in off-road conditions. (Photo: humdinger_3d/Instagram)

But Tesla’s next three vehicles are not quite as simple as the Model Y in terms of their battery tech and production processes. While the Model Y will likely use the same battery packs as its Model 3 sibling, the Semi, Cybertruck, and new Roadster do not. In fact, due to their specs and features, each of these new vehicles will likely be equipped with batteries that hold Tesla’s best and latest innovations, and they be built on platforms that are new and specifically designed for each vehicle.

The Semi, for example, is a Class 8 long-hauler that has a range of 300-500 miles per charge. Its capability to haul 80,000 pounds of weight on the road is no joke, and the vehicle’s near-sports car performance suggests that the Semi requires a very large battery pack. Tesla has not revealed the size of the batteries in the two Semi prototypes that are undergoing real-world testing today, but speculations from the EV community go as high as 1 MWh due to the truck’s weight. With better battery efficiency, optimized software, and higher energy density in its cells, Tesla may be able to achieve the Semi’s long-range targets without necessarily using as many batteries as a small fleet of Model 3s.

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The Cybertruck is not as large as the Semi, but it seems to require some notable battery improvements as well due to its price and specs. A top-tier Cybertruck costs below $70,000, and for that price, Tesla is offering over 500 miles of range per charge. Considering that the all-electric pickup truck is not exactly as sleek as the Model S in terms of aerodynamics, achieving such a range will likely require the all-electric pickup to have a pretty hefty battery. Batteries are usually considered as one of the most expensive parts of an EV, so it would be interesting to see just how low Tesla can push its battery prices down to make a behemoth of an EV go over 500 miles at a sub-$70,000 price.

Tesla’s design team with the next-generation Roadster. (Credit: Tesla)

The next-gen Roadster may only be seeing a production rate of about 10,000 per year, according to Elon Musk, but the vehicle still requires improvements in its batteries to become a definitive “hardcore smackdown to gasoline cars.” This is because the Roadster was announced with a 200-kWh battery pack that provides 620 miles of range. Tesla was at a different place when it announced the next-gen Roadster’s specs. Hence, it would not be a stretch to speculate that the production version of the all-electric supercar will either have a slightly smaller but more energy-dense battery that still provides 620 miles of range, or a 200 kWh battery pack that offers far beyond 1,000 km in one charge.

Tesla’s growth story is usually tied to the company’s release of one best-selling electric vehicle after another. But this year, after the Model Y, Tesla’s growth story will become more of a battery-driven narrative. The company’s battery tech will ultimately determine whether or not the Semi, Cybertruck, and new Roadster will be a success. But if Tesla’s batteries are up for the task, the company’s disruption of the auto industry will likely end up accelerating even more.

What’s pretty interesting to note is that all these potential battery-related breakthroughs also apply towards Tesla’s Energy business, which is rarely even considered by Wall Street when analysts evaluate the company. Every battery-related milestone that is rolled out to the company’s vehicles is also introduced to its energy storage devices. With this in mind, it is not too farfetched to speculate that this year may also end up becoming a renaissance of sorts for Tesla Energy. Part of this push could involve the introduction of slightly smaller but more energy-dense residential batteries and a line of cheaper energy storage units that are just as good as the company’s current products.

This sounds like another disruption in the making.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla refines Full Self-Driving, latest update impresses where it last came up short

We were able to go out and test it pretty extensively on Saturday, and the changes Tesla made from the previous version were incredibly impressive, especially considering it seemed to excel where it last came up short.

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8 hours ago

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December 14, 2025

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Credit: TESLARATI

Tesla released Full Self-Driving v14.2.1.25 on Friday night to Early Access Program (EAP) members. It came as a surprise, as it was paired with the release of the Holiday Update.

We were able to go out and test it pretty extensively on Saturday, and the changes Tesla made from the previous version were incredibly impressive, especially considering it seemed to excel where it last came up short.

Tesla supplements Holiday Update by sneaking in new Full Self-Driving version

With Tesla Full Self-Driving v14.2.1, there were some serious regressions. Speed Profiles were overtinkered with, causing some modes to behave in a strange manner. Hurry Mode was the most evident, as it refused to go more than 10 MPH over the speed limit on freeways.

It would routinely hold up traffic at this speed, and flipping it into Mad Max mode was sort of over the top. Hurry is what I use most frequently, and it had become somewhat unusable with v14.2.1.

It seemed as if Speed Profiles should be more associated with both passing and lane-changing frequency. Capping speeds does not help as it can impede the flow of traffic. When FSD travels at the speed of other traffic, it is much more effective and less disruptive.

With v14.2.1.25, there were three noticeable changes that improved its performance significantly: Speed Profile refinements, lane change confidence, and Speed Limit recognition.

Speed Profile Refinement

Speed Profiles have been significantly improved. Hurry Mode is no longer capped at 10 MPH over the speed limit and now travels with the flow of traffic. This is much more comfortable during highway operation, and I was not required to intervene at any point.

With v14.2.1, I was sometimes assisting it with lane changes, and felt it was in the wrong place at the wrong time more frequently than ever before.

However, this was one of the best-performing FSD versions in recent memory, and I really did not have any complaints on the highway. Speed, maneuvering, lane switching, routing, and aggressiveness were all perfect.

Lane Changes

v14.2.1 had a tendency to be a little more timid when changing lanes, which was sort of frustrating at times. When the car decides to change lanes and turn on its signal, it needs to pull the trigger and change lanes.

It also changed lanes at extremely unnecessary times, which was a real frustration.

There were no issues today on v14.2.1.25; lane changes were super confident, executed at the correct time, and in the correct fashion. It made good decisions on when to get into the right lane when proceeding toward its exit.

It was one of the first times in a while that I did not feel as if I needed to nudge it to change lanes. I was very impressed.

Speed Limit Recognition

So, this is a complex issue. With v14.2.1, there were many times when it would see a Speed Limit sign that was not meant for the car (one catered for tractor trailers, for example) or even a route sign, and it would incorrectly adjust the speed. It did this on the highway several times, mistaking a Route 30 sign for a 30 MPH sign, then beginning to decelerate from 55 MPH to 30 MPH on the highway.

This required an intervention. I also had an issue leaving a drive-thru Christmas lights display, where the owners of the private property had a 15 MPH sign posted nearly every 200 yards for about a mile and a half.

The car identified it as a 55 MPH sign and sped up significantly. This caused an intervention, and I had to drive manually.

It seems like FSD v14.2.1.25 is now less reliant on the signage (maybe because it was incorrectly labeling it) and more reliant on map data or the behavior of nearby traffic.

A good example was on the highway today: despite the car reading that Route 30 sign and the Speed Limit sign on the center screen reading 30 MPH, the car did not decelerate. It continued at the same speed, but I’m not sure if that’s because of traffic or map data:

A Lone Complaint

Tesla has said future updates will include parking improvements, and I’m really anxious for them, because parking is not great. I’ve had some real issues with it over the past couple of months.

Today was no different:

Full Self-Driving v14.2.1.25 is really a massive improvement over past versions, and it seems apparent that Tesla took its time with fixing the bugs, especially with highway operation on v14.2.1.

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Tesla hints at Starlink integration with recent patent

“By employing polymer blends, some examples enable RF transmission from all the modules to satellites and other communication devices both inside and outside the vehicle.”

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1 day ago

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December 13, 2025

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Credit: Grok

Tesla hinted at a potential Starlink internet terminal integration within its vehicles in a recent patent, which describes a vehicle roof assembly with integrated radio frequency (RF) transparency.

The patent, which is Pub. No U.S. 2025/0368267 describes a new vehicle roof that is made of RF-transparent polymer materials, allowing and “facilitating clear communication with external devices and satellites.”

Tesla believes that a new vehicle roof design, comprised of different materials than the standard metallic or glass elements used in cars today, would allow the company to integrate modern vehicular technologies, “particularly those requiring radio frequency transmission and reception.

Instead of glass or metallic materials, Tesla says vehicles may benefit from high-strength polymer blends, such as Polycarbonate, Acrylonitrile Butadiene Styrene, or Acrylonitrile Styrene Acrylate.

These materials still provide ideal strength metrics for crashworthiness, stiffness for noise, vibration, and harshness control, and are compliant with head impact regulations.

They would also enable better performance with modern technologies, like internet terminals, which need an uninterrupted signal to satellites for maximum reception. Tesla writes in the patent:

“By employing polymer blends, some examples enable RF transmission from all the modules to satellites and other communication devices both inside and outside the vehicle.”

One of the challenges Tesla seems to be aware of with this type of roof design is the fact that it will still have to enable safety and keep that at the forefront of the design. As you can see in the illustration above, Tesla plans to use four layers to increase safety and rigidity, while also combating noise and vibration.

It notes in the patent that disclosed examples still meet the safety requirements outlined in the Federal Motor Vehicle Safety Standards (FMVSS).

Starlink integrated directly into Tesla vehicles would be a considerable advantage for owners. It would come with a handful of distinct advantages.

Initially, the inclusion of Starlink would completely eliminate cellular dead zones, something that is an issue, especially in rural areas. Starlink would provide connectivity in these remote regions and would ensure uninterrupted service during road trips and off-grid adventures.

It could also be a critical addition for Robotaxi, as it is crucial to have solid and reliable connectivity for remote monitoring and fleet management.

Starlink’s growing constellation, thanks to SpaceX’s routine and frequent launch schedule, will provide secure, stable, and reliable internet connectivity for Tesla vehicles.

SpaceX reaches incredible milestone with Starlink program

Although many owners have already mounted Starlink Mini dishes under their glass roofs for a similar experience, it may be integrated directly into Teslas in the coming years, either as an upgrade or a standard feature.

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Tesla supplements Holiday Update by sneaking in new Full Self-Driving version

It seems Tesla was waiting for the Hardware 4 rollout, as it wanted to also deploy a new Full Self-Driving version to those owners, as it appeared in the release notes for the Holiday Update last night.

Published

1 day ago

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December 13, 2025

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Credit: Tesla

Tesla has surprised some owners by sneaking in a new Full Self-Driving version with the wide release of the Holiday Update, which started rolling out to Hardware 4 owners on Friday night.

Tesla has issued a controlled and very slow release pattern with the Holiday Update, which rolls out with Software Version 2025.44.25.5.

For the past two weeks, as it has rolled out to Hardware 3 and older Tesla owners, the company has kept its deployment of the new Software Version relatively controlled.

It seems Tesla was waiting for the Hardware 4 rollout, as it wanted to also deploy a new Full Self-Driving version to those owners, as it appeared in the release notes for the Holiday Update last night.

Tesla Full Self-Driving v14.2.1.25 made its first appearance last night to Hardware 4 owners who are members of the Early Access Program (EAP). It appears to be a slight refinement from FSD v14.2.1, which has been out for a couple of weeks.

Many owners welcome the new FSD version, us included, because we’ve been less than impressed with v14.2.1. We have experienced some minor regressions with v14.2.1, especially with Speed Limit recognition, Speed Profile tinkering, and parking performance.

As it stands, Full Self-Driving is still particularly impressive, but Tesla is evidently having an issue with some of the adjustments, as it is still refining some of the performance aspects of the suite. This is expected and normal with some updates, as not all of them are an improvement in all areas; we routinely see some things backtrack every once in a while.

This new FSD version is likely to take care of those things, but it also includes all of the awesome Holiday Update features, which include:

  • Grok with Navigation Commands (Beta) – Grok will now add and edit destinations.
  • Tesla Photobooth – Take pictures inside your car using the cabin-facing camera
  • Dog Mode Live Activity – Check on your four-legged friend on your phone through periodic snapshots taken of the cabin
  • Dashcam Viewer Update – Includes new metrics, like steering wheel angle, speed, and more
  • Santa Mode – New graphics, trees, and a lock chime
  • Light Show Update – Addition of Jingle Rush light show
  • Custom Wraps and License Plates – Colorizer now allows you to customize your vehicle even further, with custom patterns, license plates, and tint
  • Navigation Improvements – Easier layout and setup
  • Supercharger Site Map – Starting at 18 pilot locations, a 3D view of the Supercharger you’re visiting will be available
  • Automatic Carpool Lane Routing – Navigation will utilize carpool lanes if enabled
  • Phone Left Behind Chime – Your car will now tell you if you left a phone inside
  • Charge Limit Per Location – Set a charge limit for each location
  • ISS Docking Simulator –  New game
  • Additional Improvements – Turn off wireless charging pad, Spotify improvements, Rainbow Rave Cave, Lock Sound TRON addition

Tesla also added two other things that were undocumented, like Charging Passport and information on USB drive storage to help with Dashcam.

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