At the Cybertruck event, Tesla showed off the Cybertruck’s extended battery, an optional accessory permanently mounted to the truck’s bed. This was Tesla’s solution to keeping the truck price as low as possible while also giving owners a chance to get close to the truck’s original range of 500 miles.
The Range Extender is engineered to boost the Cybertruck's mileage substantially, increasing the truck’s total range by about 35%.
Tesla's Range Extender is a departure from traditional range-extending methods, often involving gasoline generators. Its design, occupying roughly a third of the truck bed, strikes a balance between added functionality and maintaining the truck’s cargo space. It addresses range limitations and makes the Cybertruck more suitable for towing and long-range trips.
Range / Battery Size
The Ranger Extender extends the Cybertruck total range by 120 miles (193 km). For the Cyberbeast, it’ll take the truck’s range from 320 miles up to 440, whereas for the AWD version, the range will be increased from 325 miles to 445 miles.
These are Tesla’s latest numbers, which have been reduced slightly from Tesla’s original estimates that the Ranger Extender pegged at adding 130 miles.
The Ranger Extender uses a huge 47 kWh battery pack, which explains why it takes up a significant portion of the truck’s bed. For comparison, Tesla’s Standard Range+ Model 3 has a 54 kWh pack, capable of driving about 260 miles.
Price
Though official pricing for the Range Extender has yet to be officially announced, it looks like it’ll be priced at a hefty $16,000 USD. The night the Range Extender was revealed, code was found on Tesla’s website that showed off the $16,000 price tag. However, it’s not clear whether this price was a placeholder or if the price will change before it becomes officially available.
Size & Weight
The Ranger Extender fits perfectly alongside the back of the Cybertruck’s bed. Instead of being laid evenly across the bottom of the bed, it’s nestled up against the cabin, making it easier to load items into the truck.
Elon Musk elaborated on the Range Extender's functionality: "It's an optional pack that fits in about 1/3 of the truck bed. There is still room for plenty of cargo. It's meant for very long trips or towing heavy things up mountains."
With a battery pack of 47 kWh, the Range Extender isn’t going to be something light. The Cybertruck’s “battery pack” is estimated to weigh about 600 to 650 lbs (272 kg to 294 kg), which also means that it’ll reduce the truck’s towing capacity by that much.
Installation
A few Cybertruck owners have discussed a marketing idea for the range extender would be to rent it out. Cybertruck owners could rent it for a weekend trip or an extended holiday camping. It's unlikely that Tesla will take on that business, but it is an idea for when more Cybertrucks are around and need that extra range.
Unfortunately, the Cybertruck Range extender is not something that could be easily removed or added, mostly due to its weight. Tesla has said that the Range Extender will need to be installed by Tesla Service and it’s a “permanent” install. We imagine it could also be removed at a later date, but it’s not something you could just do on your own when you don’t need it.
Unfortunately that means that owners will have to choose between additional range or cargo room. If you use the truck mostly for towing, the reduced cargo space may not be a big deal, but for other owners that use their truck for a variety of tasks, it could be a deal breaker.
—
Some Cybertruck owners have suggested renting the Range Extender for weekend trips or extended camping holidays.
However, the Cybertruck’s range extender isn’t designed for easy removal or installation, primarily due to its weight and high-voltage connections. Tesla has stated that installation must be performed by Tesla Service and is considered a “permanent” modification. While removal may be possible later, it won’t be something owners can easily swap in and out as needed.
This means Cybertruck owners will have to choose between additional range or cargo space. For those who use the truck primarily for towing, the reduced cargo capacity may not be a major issue, but for owners who use their truck for a variety of tasks, it may not be an easy decision.
Availability / Release Date
The Range Extender was initially expected to be available for pre-order customers in early 2025, but that timeline has now slipped to mid-2025. Given Tesla’s ambitious production goals this year, it wouldn’t be surprising if it gets pushed even further, possibly into 2026.
One potential reason for the delay is Tesla’s ongoing work on perfecting its dry-cathode battery process. Since the Range Extender is a low-volume product, Tesla may be prioritizing it as a testbed for dry-cathode cells before scaling them to full vehicle production. Unlike an entire truck, a battery pack like the Range Extender is easier to replace or refine if necessary.
In the meantime, Tesla is likely focused on the Cybercab and its next-generation vehicle. The Ranger Extender is expected to use the same 4680 battery cells as the Cybertruck, so Tesla will also want to ensure it has sufficient supply for vehicle production before producing the Range Extender.
Subscribe
Subscribe to our newsletter to stay up to date on the latest Tesla news, upcoming features and software updates.
With Tesla’s first major expansion of the Robotaxi Geofence now complete and operational, they’ve been hard at work with validation in new locations - and some are quite the drive from the current Austin Geofence.
Validation fleet vehicles have been spotted operating in a wider perimeter around the city, from rural roads in the west end to the more complex area closer to the airport. Tesla mentioned during their earnings call that the Robotaxi has already completed 7,000 miles in Austin, and it will expand its area of operation to roughly 10 times what it is now. This lines up with the validation vehicles we’ve been tracking around Austin.
Based on the spread of the new sightings, the potential next geofence could cover a staggering 450 square miles - a tenfold increase from the current service area of roughly 42 square miles. You can check this out in our map below with the sightings we’re tracking.
If Tesla decides to expand into these new areas, it would represent a tenfold increase over their current geofence, matching Tesla’s statement. The new area would cover approximately 10% of the 4,500-square-mile Austin metropolitan area. If Tesla can offer Robotaxi services in that entire area, it would prove they can tackle just about any city in the United States.
From Urban Core to Rural Roads
The locations of the validation vehicles show a clear intent to move beyond the initial urban and suburban core and prepare the Robotaxi service for a much wider range of uses.
In the west, validation fleet vehicles have been spotted as far as Marble Falls - a much more rural environment that features different road types, higher speed limits, and potentially different challenges.
In the south, Tesla has been expanding towards Kyle, which is part of the growing Austin-San Antonio suburban corridor spanning Highway 35. San Antonio is only 80 miles (roughly a 90-minute drive) away, and could easily become part of the existing Robotaxi area if Tesla obtains regulatory approval there.
In the East, we haven’t spotted any new validation vehicles. This is likely because Tesla’s validation vehicles originate from Giga Texas, which is located East of Austin. We won’t really know if Tesla is expanding in this direction until they start pushing past Giga Texas and toward Houston.
Finally, there have been some validation vehicles spotted just North of the new expanded boundaries, meaning that Tesla isn’t done in that direction either. This direction consists of the largest suburban areas of Austin, which have so far not been serviced by any form of autonomous vehicle.
Rapid Scaling
This new, widespread validation effort confirms what we already know. Tesla is pushing for an intensive period of public data gathering and system testing in a new area, right before conducting geofence expansions. The sheer scale of this new validation zone tells us that Tesla isn’t taking this slowly - the next step is going to be a great leap instead, and they essentially confirmed this during this Q&A session on the recent call. The goal is clearly to bring the entire Austin Metropolitan area into the Robotaxi Network.
While the previous expansion showed off just how Tesla can scale the network, this new phase of validation testing is a demonstration of just how fast they can validate and expand their network. The move to validate across rural, suburban, and urban areas simultaneously shows their confidence in these new Robotaxi FSD builds.
Eventually, all these improvements from Robotaxi will make their way to customer FSD builds sometime in Q3 2025, so there is a lot to look forward to.
For years, the progress of Tesla’s FSD has been measured by smoother turns, better lane centering, and more confident unprotected left turns. But as the system matures, a new, more subtle form of intelligence is emerging - one that shifts its attention to the human nuances of navigating roads. A new video posted to X shows the most recent FSD build, V13.2.9, demonstrating this in a remarkable real-world scenario.
Toll Booth Magic
In the video, a Model Y running FSD pulls up to a toll booth and smoothly comes to a stop, allowing the driver to handle payment. The car waits patiently as the driver interacts with the attendant. Then, at the precise moment the toll booth operator finishes the transaction and says “Have a great day”, the vehicle starts moving, proceeding through the booth - all without any input from the driver.
If you notice, there’s no gate here at this toll booth. This interaction all happened naturally with FSD.
While the timing was perfect, the FSD wasn’t listening to the conversation for clues (maybe one day, with Grok?) The reality, as explained by Ashok Elluswamy, Tesla’s VP of AI, is even more impressive.
It can see the transaction happening using the repeater & pillar cameras. Hence FSD proceeds on its own when the transaction is complete 😎
FSD is simply using the cameras on the side of the vehicle to watch the exchange between the driver and attendant. The neural network has been trained on enough data that it can visually recognize the conclusion of a transaction - the exchange of money or a card and the hands pulling away - and understands that this is the trigger to proceed.
The Bigger Picture
This capability is far more significant than just a simple party trick. FSD is gaining the ability to perceive and navigate a world built for humans in the most human-like fashion possible.
If FSD can learn what a completed toll transaction looks like, it’s an example of the countless other complex scenarios it’ll be able to handle in the future. This same visual understanding could be applied to navigating a fast-food drive-thru, interacting with a parking garage attendant, passing through a security checkpoint, or boarding a ferry or vehicle train — all things we thought that would come much later.
These human-focused interactions will eventually become even more useful, as FSD becomes ever more confident in responding to humans on the road, like when a police officer tells a vehicle to go a certain direction, or a construction worker flags you through a site. These are real-world events that happen every day, and it isn’t surprising to see FSD picking up on the subtleties and nuances of human interaction.
This isn’t a pre-programmed feature for a specific toll booth. It is an emergent capability of the end-to-end AI neural nets. By learning from millions of videos across billions of miles, FSD is beginning to build a true contextual understanding of the world. The best part - with a 10x context increase on its way, this understanding will grow rapidly and become far more powerful.
These small, subtle moments of intelligence are the necessary steps to a truly robust autonomous system that can handle the messy, unpredictable nature of human society.
