Tesla Enables 325kW Charging at V4 Superchargers Through OTA Update

By Karan Singh
@BLKMDL3 on X

Tesla has now enabled 325kW charging at its V4 Superchargers. Right now, this is exclusive to the Cybertruck, which is the first vehicle to charge above 250kW at Tesla’s Superchargers. This new charging speed was initially being tested by Tesla in early December 2024 at select Supercharger sites in the United States, but this speed upgrade is now rolling out across North America.

V4 Superchargers

The new 325kW peak charging speed has been enabled at V4 Supercharger posts across North America - in both Canada and the United States. V4 Supercharger posts also bring longer cables - a great boon for the Cybertruck in particular, which can sometimes be hampered by the short V2 cables.

While V3 posts are still the most common, Tesla’s Supercharging team is working on upgrading older sites with V4 hardware, including pull-through tow-friendly Supercharging stalls. Tesla’s V4 stalls currently make up approximately 14% of the Supercharger network today - which is a massive improvement since Q4 2023, where they made up just 2%.

Faster Charging

The new 325kW peak speed will bring about a 5-minute improvement in charge times, as per some initial testing by Cybertruck owners. That brings the current 0-80% charge speed from 40 minutes down to just 35 minutes. This is mostly due to the vehicle not being able to sustain the higher charge speeds for a significant length of time.

And the best part? This new feature was enabled with an OTA update to the Superchargers. Max de Zegher, Tesla’s Director of Charging, pointed out that this overnight change was delivered quickly, efficiently, and quietly - all without on-site visits.

Finding a V4 Post

Your Cybertruck’s touchscreen will display the location of 325kW chargers and automatically prefer navigating to these faster chargers, depending on stall availability. This is similar to how enabling Tow Mode will make your vehicle prioritize Supercharger sites with tow-friendly stalls.

Faster Charging Coming

Tesla also confirmed that it is working on its V4 cabinets, which will further upgrade the peak charging speed of the Cybertruck to a staggering 500kW. That’ll be double what other Teslas can do today - due to the massive improvements brought forward by the new 800V architecture.

We expect the arrival of the new V4 cabinets and their 500kW charge speeds to even further boost just how fast Cybertruck can charge. We expect that 35-minute charge time to drop to 30 minutes or less, depending on the Cybertruck’s updated charge curve.

Other Vehicles Next?

Currently, the Cybertruck is unique with its 800V high voltage and 48V low voltage architectures. While we expected Tesla to bring these two big changes to their first mass-market refresh - the Refreshed Model Y Juniper, that didn’t come true. As such, we don’t expect the new 325kW speed to open up to older vehicles - at least - not yet.

However, there is still room for Tesla to continue improving vehicle charge speeds, features, and curves. They recently enabled a new battery-heating feature for RWD Standard Range vehicles with LFP battery packs, allowing them to Supercharge even faster in cold environments.

Competition is Speedy

Some competitors have exceeded Tesla’s Supercharger speeds - and not just speeds - but overall charge curves. This is especially true with some Chinese competitors - who are pushing LFP battery packs to charge at a stable 150kW across the entire 30-80% range.

Tesla vehicles currently struggle to maintain the charge rate over a longer period of time, which means that while they start fast, they peter out more quickly than other vehicles. The time difference between faster-charging vehicles like the Porche Taycan and the Model 3 was about 60 minutes across an 800-mile distance.

That’s not a huge difference in time overall, especially considering the difference in price points between a Taycan ($101,000 USD - starting) versus a Model 3 ($47,490 USD - LR AWD). It sounds like Tesla is looking for good charging speeds while maintaining battery health and keeping prices low.

While charge speeds may not be the best in the industry, the number of locations and reliability of Superchargers currently more than makeup for it.

Tesla Completes the Cybertunnel: How It Improves Cybertruck Production

By Karan Singh
Not a Tesla App

Tesla’s newly completed Cybertunnel, designed exclusively for transporting Cybertrucks out of Giga Texas, is now fully operational. While its construction briefly delayed Cybertruck production, causing a short three-day pause, the long-term benefits far outweigh the short setback.

With the tunnel now open and operational, Tesla can seamlessly move Cybertrucks from the production floor to the transport area.

Creating the Cybertunnel

This tunnel is anything but boring. Excavated by Elon Musk’s Boring Company, which specializes in cutting-edge tunneling technology, this 1,355-foot passage was built explicitly for the Cybertruck—and that’s exactly what’s rolling through it.

The Boring Co. completed the entire tunnel in just nine weeks—a testament to Prufrock 3’s capabilities.

Why Build the Cybertunnel

This Cybertunnel isn’t just for the sake of making a grand appearance. It’s responsible for bringing completed Cybertrucks directly from the Giga Texas production line to the outbound shipping lot - which happens to be located on the other side of a major highway. This allows Tesla to quickly load vehicles going anywhere in North America.

By building the underground tunnel, Tesla connects its loading lot to the factory and avoids using public roads or having to load up Cybertrucks at the factory, where space is constrained. Crossing the highway on a level crossing would also mean the trucks would need to be registered and plated, as they’re no longer on private property.

New Cybertruck Route

The Cybertunnel in red, the old route in blue
The Cybertunnel in red, the old route in blue
Not a Tesla App

The Cybertunnel has interior and exterior lighting. The external face on the outbound lot side looks like a Cybertruck, complete with a Cybertruck lightbar in the front. After Cybertrucks make their way through the tunnel, they take a right turn at the exit of the tunnel and make their way to the outbound lot, all prepped and ready for loading.

The map above shows the Cybertunnel in red and the previous route that Cybertrucks would have to take in blue. The highway is highlighted in yellow.

The Cybertunnel drastically reduces the time and effort it takes to get the Cybertruck to the loading lot. Tesla is all about efficiencies and vertical integration, and this is just one more example of how Tesla is able to reduce vehicle costs by making vehicles more efficiently.

First Look at Tesla's New 'Trailer Profiles' Feature

By Karan Singh
BLKMDL3 / X

Tesla recently released Trailer Profiles for the Cybertruck with software update 2024.45.32.5. Trailer Profiles were spotted in decompiled code late last year but weren’t enabled until this release.

Back then, all we knew was that the new feature was coming soon, and we’d be able to make unique profiles per trailer to better track range, consumption, and trailer mileage. However, now that the feature has been released, we have our first look at what Tesla has put together.

Trailer Profiles

The new Trailer Profiles feature is available in the Towing & Hauling menu on the Cybertruck. However, it’s expected to arrive in other vehicles later this year.

Within the new menu, you’re able to create new trailer profiles, keep track of several unique values, and also adjust trailer-based settings. For now, you can have up to 20 unique trailers, which will enable you to build profiles for both loaded and unloaded variants of whatever you’re towing.

Supported Cars

While Trailer Profiles is currently exclusive to the Cybertruck, we expect other models that are capable of towing to receive the feature as well. Tesla typically likes to release features in smaller batches and limit their release. Sometimes this is done regionally, while other times, it’s done by model. Tesla has tried other ways to limit a feature, but these are typically the methods used. Future support should include the Model S, Model X and Model Y.

Trailer Setup

BLKMDL3 / X

You can set the following settings when setting up a new trailer:

Trailer Name: Name your trailer just like you would your vehicle or your Tesla profile. This will make it easier when you want to switch to that profile later.

Type: You can select between an open or enclosed trailer variant here to help the system adjust for range estimation better.

Trailer Mass: You can put in the weight of the trailer. This value can also be adjusted later on, so you can update it on the fly.

Dimensions: You can put in the dimensions of your trailer. For now, this appears to be locked to the imperial measurement system, but we’re sure metric support will be available soon.

Mileage: Finally, you can add in the mileage of your trailer as the starting mileage, if you know it. This value will also adjust automatically as you tow the trailer, so there’s no need to manually update it in the future. This feature, along with better range estimations, are probably the two biggest reasons to use Trailer Profiles. You’ll now have a better idea of when to check your trailer’s tires and brakes based on mileage.

Settings Menu

A batch of trailer-towing-specific settings is also available in the Towing and Hauling Menu, enabling you to fine-tune your trailer tow setup. These are saved per trailer profile, so you can quickly get going once you select your trailer.

Trailer Brake Gain: This is a sliding scale between 1 to 10 that calibrates the overall degree of braking applied. 0 applies no brakes, whereas 10 applies the full brakes.

Trailer Brake Boost: The brake boost option increases the reaction speed of the trailer brakes. By default, Tesla recommends the Low option, as braking will become much more harsh at the higher settings.

Adaptive Regenerative Braking: At the start of the drive, your vehicle will automatically estimate the total load being towed to calibrate the proper level of regenerative braking. Regenerative braking starts at a “standard” level and increases as the vehicle learns the trailer’s weight and cargo.

Trailer Auxiliary Power: Enables or disables auxiliary power to your trailer and its accessories.

Right Scroll Wheel Trailer Brake: Enabling this allows you to tilt the right scroll wheel to the right, which will trigger the trailer brake. This disables the follow distance control for TACC.

Trailer Alarm: Cybertruck can extend its coverage of Sentry Mode to the trailer hitch - if the trailer is disconnected, the alarm will sound, and you will be notified.

Profile-Derived Improvements

Tesla’s new Trailer Profiles allow your vehicle to make better predictions of its energy usage. This will also let your in-vehicle navigation adapt to charging stations, better predicting when you need to stop and for how long. Plus, while you have tow mode engaged, your vehicle will automatically prioritize trailer-friendly Superchargers.

For anyone who tows, this will greatly help when towing, especially over longer drives. As your vehicle adjusts to your trailer’s energy usage the accuracy of the feature will continue to improve.

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