Tesla’s Robotaxi: A Look at Batteries, Range, and Pack Size

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Tesla’s Robotaxi - called the Cybercab - took to the streets at the We, Robot event - Tesla’s latest event covering autonomy for vehicles and humanoid robots.

Tesla was pretty light on the specifications and details behind the vehicles, but there was some information that made its way out to the open in the following days. We’ve gathered up all that juicy information, so leave your Supercharger cable behind, and let’s take a look at some Cybercab battery and range details.

In addition to Tesla Vision, Optimus leverages many of our vehicles' hardware components, like batteries, cameras & computers

This greatly helps accelerate its development pic.twitter.com/JcMS35yHpY

— Tesla Optimus (@Tesla_Optimus) October 15, 2024

Robotaxi Batteries

Tesla released this excellent animation on X recently, which looked at the similarities between Optimus - Tesla’s humanoid robot - and the Cybercab. The key note is that the Cybercab and Optimus share the same batteries, same computer, and same cameras, all based on AI5. So, assuming the video is accurate, we can roughly determine how many batteries are inside the Robotaxi, and then extrapolate the range as well. We’ve also got a second method to take estimate the vehicle’s battery size, based on the video where Tesla showed off the Cybercab’s wireless charging capabilities.

Method 1: Counting Batteries

Based on the animation, the grid of cells is 27 wide by 30 tall. If the video accurately depicts the Cybercab’s battery pack, that gives us 810 cells. We already know the 4680 battery pack in the Cybertruck has 1,344 cells, with a capacity of 123 kWh.That’s about 0.09kWh per cell, which works out to 74.685kWh in the Cybercab.

However, we feel that this number is far too large, especially given that Tesla is already intending to use the new NC05 battery format in the Cybercab. We expect the Cybercab to launch with a battery smaller than the Model 3 Standard Range (54 kWh). Therefore, we can try a different method to determine the pack size.

Method 2: Charging Math

Rafael Levy on X helped out with this calculation - it's possible to extrapolate the battery size in the Cybercab by looking at the charge rate, time remaining, and battery max charge level in Tesla’s wireless charging video. In the video, the car starts charging at 35% and is being charged at about 25 kW. The video shows the charger starting at 19 kW and going up to 25 kW of power. The video also shows that the vehicle is charged for 56 minutes. Near the end of the video the vehicle finishes charging at 80% - likely suggesting a non-LFP battery. 

When you calculate it out - 25 kW for 56 minutes, you get 23.3 kWh, which is 45% of the battery pack (35% to 80%). Calculating for the full pack, it sounds like the Cybercab’s battery pack is approximately 51kWh, a much more reasonable number.

We expect the Cybercab to launch with the new NC05 cells that Tesla has been working on, which will likely be a smaller, more efficient cell than the Cybercells in today’s Cybertruck. Those smaller cells will also have less energy per cell while also taking up less space and being easier to warm or cool due to overall thermal mass. 

The Cybercab doesn’t need to solve every travel case, just the most popular, which would be shorter distances. Tesla’s goal with the Cybercab is efficient and cost-effective, and a smaller battery pack definitely fits into that motive. We expect the Cybercab to include between a 40 kWh and 50 kWh battery pack.

Being autonomous, the Cybercab will have more opportunities to charge and clean itself without inconveniencing the consumer since it could go to a nearby hub after dropping off a customer.

Cybercab / Robotaxi Range

Yesterday, Tesla shared its Q3 earnings call deck, which revealed some new information about the Cybercab. In it, Tesla stated that the Cybercab will include a new powertrain and will achieve an estimated 5.5 miles per kWh. For reference, the Model 3 Long Range gets about 3.9 miles per kWh, so this is a massive improvement. Some of the improvements likely lie in the Cybercab's lighter weight and improved aerodynamics, but the new powertrain likely also brings some increased efficiency.

If the Cybercab achieves 5.5 miles per kWh, we can speculate that, depending on the battery pack size, it’ll have a range between 220 and 270 miles.

Top Gear also attended the Robotaxi event and was told by an employee that Tesla is aiming for a vehicle with 200 miles of range, which matches the lower end of our calculations above. Top Gear also stated at the time that the Cybercab would achieve 5.5 miles per kWh, which Tesla revealed yesterday.

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Tesla Launches Full Self-Driving in Mexico

Not a Tesla App

Tesla has officially launched FSD in Mexico. This is the third expansion of FSD since it was first launched in the United States.

The news was shared by Tesla Owners Mexico on X, followed by confirmation from Tesla AI with a simple but exciting message: "¡Hola México!"

FSD features are geo-fenced, meaning that if a vehicle equipped with FSD crosses into a country where the software isn’t supported, it will automatically revert back to Autopilot. This expansion has likely lifted the restriction, meaning the U.S. Tesla owners should now be able to drive into Mexico and continue using FSD without interruption.

FSD Global Expansion Timeline

Tesla has set some lofty goals for itself, announcing in their FSD roadmap that it expects FSD to be ready to roll out internationally in Q1 and expand to right-hand drive markets in Q2. While it’s not clear whether Tesla still expects to meet these targets, this is the latest information that was shared in September 2024:

• Q1 2025: FSD is expected to launch in Europe and China, pending regulatory approval.

• Q2 2025: FSD rollout for right-hand drive (RHD) markets, with a flexible timeline based on approval processes.

Tesla has faced regulatory hurdles, particularly in China, where FSD testing was recently put on hold. One major hurdle is China’s strict data regulations, which require all training data to be collected and stored within the country. This means Tesla cannot rely on its existing U.S.-based data centers and must build local infrastructure to comply with government policies that prevent vehicle data from leaving China.

Additionally, since FSD relies heavily on fleet data, Tesla won’t be able to leverage its vast global dataset. Instead, the company will need to retrain its AI models using data exclusively gathered from vehicles operating within China. These constraints add complexity to Tesla’s FSD rollout, potentially delaying its expansion in the region.

¡Hola México! 🇲🇽 https://t.co/Hidp7vw9qz

— Tesla AI (@Tesla_AI) February 11, 2025

FSD Expansion History

After initially launching FSD Beta in the U.S. to a small group of influencers, Tesla expanded access to more users through its Safety Score program in late 2021. At first, only those with a perfect score of 100 were eligible, but as FSD improved and Tesla grew more confident in its performance, the requirement was gradually lowered.

In March 2022, Tesla took its first step beyond the U.S. by introducing FSD in Canada with the release of v10.11.1. Since then, Tesla has expanded FSD to Puerto Rico, and now, the launch in Mexico marks another major expansion of the software.

This news will likely raise excitement among users outside of North America who have been waiting for FSD for years. With regulatory hurdles in China presenting unique challenges, Tesla may shift its focus to expanding FSD in Europe and Oceania first.

Meanwhile, Tesla also focuses on launching its Robotaxi network, set to debut in Austin, Texas, in June. The upcoming Cybercabs in Austin could be running early builds of FSD v14 or a specialized version designed for Unsupervised FSD.

Like so many other things happening at Tesla right now, it’s an exciting time as Tesla prepares Unsupervised FSD for the Cybercab, continues the expansion of FSD, and works out all the details of its robotaxi network, such as the cleaning hubs and wirelessly charging capabilities.

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Tesla's New Model Y to Receive Adaptive Headlight Support in U.S. Soon

@DriveGreen80167 on X

In the latest episode of Jay Leno’s Garage, Tesla’s VP of Vehicle Engineering, Lars Moravy, confirmed that the new Model Y will feature adaptive headlights.

As Moravy was talking about the updated headlights in the vehicle, which now sit a few inches lower than before, he stated that in a couple of months, Tesla will add adaptive headlights in the U.S.

While Tesla has already introduced adaptive headlights in Europe and the Indo-Pacific, the feature has yet to make its way to North America.

Originally delayed in the U.S. due to regulatory issues, manufacturers have been able to implement adaptive headlights since mid-2024. Meanwhile, competitors like Rivian and Mercedes-Benz have already rolled out their own full matrix headlight systems, matching what’s available in other regions.

Update: This article has been updated to clarify that adaptive headlights will indeed be launched in the U.S., shortly after the vehicle launching in March.

Adaptive Headlights

Back in October 2024, Lars confirmed that matrix headlight functionality was just around the corner for North America. However, as we enter 2025, it’s still unclear when Teslas with matrix headlights will receive the feature.

Currently, Tesla in North America supports adaptive high beams and automatic headlight adjustment for curves, but full matrix functionality has yet to be rolled out. Meanwhile, matrix headlights are already available in Europe, where they selectively dim individual beam pixels to reduce glare for oncoming traffic and adapt to curves in the road.

It was surprising that matrix functionality wasn’t included in the comprehensive 2024 Tesla Holiday Update. This feature would likely improve safety ratings, so we can only assume Tesla is diligently working to secure regulatory approval.

Adaptive Headlights on Other Models

Lars didn’t confirm whether the refreshed Model Y comes with the same headlights as the new Model 3 and the Cybertruck, instead simply calling them "matrix-style” headlights.

The headlights on the new Model Y appear very similar to those available in the 2024+ Model 3, possibly meaning these other models will also receive adaptive headlight capabilities in the next couple of months.

For vehicles with older-style matrix headlights, it’s unlikely that adaptive beams support will launch at the same time, but they will hopefully become available soon afterward.

You can check our guide here to see if your vehicle includes matrix headlights.

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