Tesla is making various improvements to its third-gen Wall Connector
@ChrisTesla/Twitter
Tesla operates two charging networks; the Supercharger and the Destination Charger. The Supercharger network consists of direct current, fast-charging stations for long-distance driving.
The Destination Charger network consists of slower-speed chargers, specifically the Tesla Wall Connector, installed at restaurants and hotels for Tesla owners to charge at their destination.
Destination Charging has typically been free up until now. Tesla announced that they are enabling paid charging at Destination Chargers. In order to set pricing at a Destination Charger location, restaurants and hotels will need at least six Tesla Wall Connectors.
In 2020, Tesla upgraded Destination Chargers with third-generation Wall Connectors, and the EV automaker told property managers that it would enable paid charging with this new generation charger.
Tesla’s Destination Charging locations have usually been complimentary. In most cases, the only requirement was that the Tesla owner was also a customer of the business.
The chargers would help bring more customers to the business, who would cover the cost of electricity from the Destination Chargers.
A great example of Destination Chargers that increase business is hotels. A Tesla owner may be more likely to choose a hotel with Destination Chargers if it means they could easily charge when needed while on vacation.
With the new 3rd generation Wi-Fi-connected Wall Connector, Tesla is enabling businesses to set their own price for charging. However, a business must have at least six Wall Connectors to activate the feature:
Tesla Commercial Services can be enabled on Gen3 Tesla Wall Connectors that are connected to either Wi-Fi or Cellular and have a signed Services Agreement with Tesla. A minimum of six units are required to be installed to be considered forthis service.
This excludes many Destination Chargers since most locations only have two to four Tesla Wall Connectors.
This upgrade will also encourage some property managers to add more chargers since they can charge customers for the service and cover their electricity costs.
Tesla Owners
Tesla Wall Connectors can add about 44 miles of range per hour of charging. In some circumstances, this is a better solution than a Supercharger, which has idling fees after your vehicle is done charging.
Property Managers
Now that property managers can charge for the service, they can cover the cost of deploying the chargers and the cost of electricity while also attracting Tesla owners to their businesses or apartment complex.
Apartment Complexes
If you live in an apartment complex and haven't bought an EV because of limited access to charging, this could be a turning point.
Up until now, many apartment complex managers have been hesitant to add EV chargers due to the added cost. However, now they'll be able to pass on any costs to their residents, adding value to their apartment complex without accruing any charges.
Destination Chargers can be used by Teslas and any other EV with an adapter.
It'll be interesting to see whether Tesla opens up this feature further by removing the six Destination Charger requirement. That would allow almost anyone to charge for the use of their Wall Connector.
Tesla will soon retrofit some of their Superchargers with a CCS plug, allowing non-Tesla vehicles to charge without the use of an adapter. It's possible that the same feature may also arrive for the Wall Connector in the future.
Tesla’s been on a roll with Supercharger improvements lately, from the 325kW charging update for the Cybertruck, to 500kW with V4 Superchargers coming next year. While those improvements have been limited to the Cybertruck, Tesla didn’t put all their focus on their new flagship vehicle, but looked at their more affordable vehicles as well.
LFP Battery Heating
Tesla’s Superchargers can now heat LFP Batteries - those that are in the Model 3 and Model Y Rear Wheel Drive variants. This applies to Long Range and Standard Range models, which saw a limited run. This is another update included as part of the 2024 Tesla Holiday Update - which really arrived with a lot of unannounced new features and capabilities.
The change is pretty interesting - Superchargers of the V3 and V4 variety can now pre-heat batteries for Model 3 and Model Y vehicles equipped with LFP battery packs. That means those vehicles are able to get back on the road faster when it's extremely cold. Of course, Tesla still advises you to precondition before you arrive, saving drivers time and money.
Max de Zegher, Tesla’s Director of Charging, also commented on the new feature. Essentially, Tesla is inducing an AC (alternating) ripple current through the battery to warm it up. Keep in mind that Superchargers are DC charging. That means it is possible to get a cold-soaked LFP vehicle on the road 4x faster than before, assuming that it didn’t precondition at all and that it is in the worst-case scenario (below 0ºF).
In essence, Tesla is using some engineering magic to turn the circuits inside the LFP battery into an electric heater - and powering that heater through the Supercharger. An AC ripple current is a small oscillation in the DC charging current that generates heat through electrical resistance, warming up the battery. Those ripples are a byproduct of converting AC to DC and back - so Tesla is using the onboard charger to induce those ripples to warm up the battery. Definitely an innovative technique that’s really only possible with the versatility of the NACS connector.
We’re hoping Tesla can implement this across their full lineup of vehicles, but we’ll have to wait and see how it is trialed across LFP vehicles first and if it is even possible on vehicles with 2170 or 4680 battery packs.
Tesla launched two FSD updates simultaneously on Saturday night, and what’s most interesting is that they arrived on the same software version. We’ll dig into that a little later, but for now, there’s good news for everyone. For Hardware 3 owners, FSD V12.6.1 is launching to all vehicles, including the Model 3 and Model Y. For AI4 owners, FSD V13.2.4 is launching, starting with the Cybertruck.
FSD V13.2.4
A new V13 build is now rolling out to the Cybertruck and is expected to arrive for the rest of the AI4 fleet soon. However, this build seems to be focused on bug fixes. There are no changes to the release notes for the Cybertruck with this release, and it’s unlikely to feature any changes when it arrives on other vehicles.
FSD V12.6.1 builds upon V12.6, which is the latest FSD version for HW3 vehicles. While FSD V12.6 was only released for the redesigned Model S and Model X with HW3, FSD V12.6.1 is adding support for the Model 3 and Model Y.
While this is only a bug-fix release for users coming from FSD V12.6, it includes massive improvements for anyone coming from an older FSD version. Two of the biggest changes are the new end-to-end highway stack that now utilizes FSD V12 for highway driving and a redesigned controller that allows FSD to drive “V13” smooth.
It also adds speed profiles, earlier lane changes, and more. You can read our in-depth look at all the changes in FSD V12.6.
Same Update, Multiple FSD Builds
What’s interesting about this software version is that it “includes" two FSD updates, V12.6.1 for HW3 and V13.2.4 for HW4 vehicles. While this is interesting, it’s less special when you understand what’s happening under the hood.
The vehicle’s firmware and Autopilot firmware are actually completely separate. While a vehicle downloading a firmware update may look like a singular process, it’s actually performing several functions during this period. First, it downloads the vehicle’s firmware. Upon unpacking the update, it’s instructed which Autopilot/FSD firmware should be downloaded.
While the FSD firmware is separate, the vehicle can’t download any FSD update. The FSD version is hard-coded in the vehicle’s firmware that was just downloaded. This helps Tesla keep the infotainment and Autopilot firmware tightly coupled, leading to fewer issues.
What we’re seeing here is that HW3 vehicles are being told to download one FSD version, while HW4 vehicles are being told to download a different version.
While this is the first time Tesla has had two FSD versions tied to the same vehicle software version, the process hasn’t actually changed, and what we’re seeing won’t lead to faster FSD updates or the ability to download FSD separately. What we’re seeing is the direct result of the divergence of HW3 and HW4.
While HW3/4 remained basically on the same FSD version until recently, it is now necessary to deploy different versions for the two platforms. We expect this to be the norm going forward, where HW3 will be on a much different version of FSD than HW4. While each update may not include two different FSD versions going forward, we may see it occasionally, depending on which features Autopilot is dependent on.
Thanks to Greentheonly for helping us understand what happened with this release and for the insight into Tesla’s processes.
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