Tesla Model S
Decoding Your Tesla Battery Pack Version
Identifying Your Tesla Battery Pack
Did you know the Tesla Model S battery comes in either an A, B, D, or E pack?
Your Tesla battery pack information is found on a sticker affixed to the front right side of the battery pack that can be seen when looking under your car from just behind the front right (passenger side) wheel.
The first and arguably the most important part of the label is the top portion which indicates the size of your battery pack. This is useful when validating that you received the correct battery ordered. The next piece of information which may have some potential value is the model of the battery indicated by the last letter trailing the part number. In my case I have the “D” battery pack.
Tesla Battery Pack Version
The main notable difference in features between battery pack versions occur between the A and B packs. An improvement to the cooling system of the battery pack was made starting with the B packs that allowed for faster Supercharging. Those with A battery packs can only Supercharge at a maximum of 90kW while those with B battery packs and later can Supercharge at 120kW, or possibly higher.
Tesla Model X P90D(L) 90 kWh Battery Pack
According to the TMC Wiki that tracks Tesla battery pack part numbers, the basic pack versions can be decoded through the following:
- 1071941 is the 90 kWh pack from a Model X P90D(L)
- 1063792 is a new 90 kWh pack
- 1014114 is a new 85 kWh pack
- 1020422 is a new 60 kWh pack
There’s a large variation of part numbers which may contain notable differences that the community has yet to identify. Or it may simply be an indicator for a refurbished pack versus a factory new one.
ALSO SEE: [Video] Tesla Model S Battery Replacement Service
Barring formal confirmation from Tesla, the working theory is that battery pack versions A, B and D are equivalent to model years of the car. They’re evolutions of the same core battery pack with each subsequent letter being better than its predecessor. Superchargers capable of greater than 120kW are just starting to emerge. The 100th Supercharger, recently installed in NJ, was a 135kW Supercharger.
D battery packs began shipping sometime in the second half of 2013 and represent the latest versions to be installed. If you have a D pack rest assure that you’ve got the latest.
So far there have been no reported differences between the B battery pack and the D battery pack in terms of charge rates or performance, but the current theory is that the B pack may be limited to charging at 120kW while the D pack may be capable of supporting 150kW.
Summary
If you purchased a Model S in late 2013 or 2014, you’re most likely using the latest and greatest battery pack version from Tesla. However, if something should ever go wrong and you’re given a replacement battery pack by the Tesla Service Center, make sure you do not receive a refurbished A pack or any pack labeled with a version older than your existing one.
If you don’t know the version of your battery pack, do yourself a favor and go take a picture of it and save it for your records. You might be thankful you did one day.
RELATED: Comparing Tesla battery technology against the competition
Firmware
Tesla unlocks in-car web conferencing to extend Google Meet, Teams and beyond
Tesla’s Summer Update lets owners join Google Meet, Teams, and Discord calls via cabin camera.
Tesla’s 2026 Summer Update, which just began rolling out to customer vehicles, now links the built-in web browser with the in-cabin camera feed and microphone input, thereby letting owners join video calls on nearly any browser-based service instead of just Zoom.
The change appears in Tesla’s own release notes for software version 2026.26 under “Web Browser,” which states that the vehicle can now use its interior camera and cabin microphone when a website requests access, with permission granted the same way a desktop browser handles it. As NotATeslaApp notes, this feature opens the door to Google Meet, Microsoft Teams, Discord, and other webcam-enabled sites to activate the in-car cabin-facing camera. The feed automatically crops and zooms to center the driver in frame.
Tesla has offered in-car video calling before, but only through a dedicated Zoom app that launched at the end of 2022, a stripped-down browser preloaded with Zoom’s own web client and gated behind Premium Connectivity. Opening the full browser to any camera-requesting site removes that walled garden. Elon Musk first called video conferencing “definitely a future feature” back in 2020, when the pandemic pushed remote meetings into daily life, so this update effectively finishes something Tesla has been promising for six years.
Tesla Summer Update begins rolling out: a look at the new features
The feature keeps the same restrictions that applied to Zoom on Tesla vehicles. It only works while the car is parked; shifting into Drive disables the camera feed, according to the release notes. It is also limited to vehicles running Tesla’s AMD Ryzen infotainment hardware, meaning older Intel-based Model S and Model X units, along with early Model 3 and Model Y builds, don’t get it.
Turning the browser into a general entry point for the in-cabin camera, rather than routing everything through one local app, widens the number of third-party sites that can ask for access, even though Tesla’s permission prompt.
With the Summer update only days into its rollout, be sure to stay with us on TikTok and X to see the latest video demonstrations.
News
Tesla to open source Model S and Model X designs and software
In a move echoing its earlier commitment to open innovation, Tesla CEO Elon Musk announced recently that the company plans to make the design and software of its Model S and Model X fully open source.
This follows the same approach Tesla took with its original Roadster, releasing all available design, engineering, and diagnostic materials in November 2023 so that “whatever we have, you now have.”
Just as Tesla made the original Roadster design & software open source, we plan to do the same with Model S & X
— Elon Musk (@elonmusk) July 24, 2026
The Model S, introduced in 2012, was Tesla’s first mass-produced vehicle and a groundbreaking luxury electric sedan. It offered impressive range, rapid acceleration, and over-the-air software updates that redefined expectations for electric cars.
The Model X, launched in 2015, built on that foundation as a high-performance electric SUV notable for its distinctive falcon-wing doors, spacious interior, and advanced safety features. Both models served as flagships that helped establish Tesla as a leader in the EV industry and popularized long-range battery-electric vehicles.
Production of the Model S and Model X was wound down earlier in 2026, with manufacturing ending in the second quarter. Tesla redirected the Fremont factory space previously used for these vehicles toward higher-priority projects, including Optimus humanoid robots and the Cybercab autonomous vehicle.
By the time of Musk’s open-source announcement, custom orders had closed and only remaining inventory was available.
Open-sourcing the designs and software offers several clear advantages. Owners of these aging but still capable vehicles gain better access to technical documentation, diagnostic tools, and software resources, making independent repairs and modifications easier and more affordable.
Independent repair shops and third-party specialists can support the large existing fleet without relying solely on Tesla’s service network. Enthusiasts and engineers can study real-world implementations of Tesla’s battery, powertrain, and software systems, potentially accelerating broader industry progress in electric mobility.
The step aligns with Tesla’s 2014 patent pledge and its overall mission to advance sustainable transport by sharing hard-won knowledge rather than locking it behind proprietary walls.
By releasing these materials now that the models have left production, Tesla ensures continued support for its early adopters while freeing internal resources for future technologies. The open-source release of the original Roadster already enabled simulations, community projects, and deeper technical understanding.
Extending that practice to the Model S and Model X should deliver similar benefits on a larger scale, helping keep these influential vehicles relevant and repairable for years to come
Cybertruck
Tesla Mobile App gets a new feature that wrap fans are going to love
Tesla’s Summer Update removes the USB drive step from customizing your car’s digital wrap design.
Tesla’s latest 2026 Summer Update quietly closes out one of the more tedious steps in personalizing a Tesla’s digital appearance. Uploading a custom wrap design used to require a USB drive. Now it doesn’t.
The feature is listed in Tesla’s release notes as “Send Custom Wraps from Mobile App.” The company described it plainly: “Skip the USB drive and upload a custom wrap of your car from the mobile app. Instructions for creating a custom wrap here: github.com/teslamotors/custom-wraps.”
The digital wrap tool has been around since Tesla’s 2024 Holiday Update, when it launched for Cybertruck owners first, as Teslarati reported at the time. Getting a design onto the car meant formatting a USB drive, creating a folder named exactly “Wraps,” dropping in PNG files sized between 512×512 and 1024×1024 pixels and under 1 MB each, then plugging the drive in and applying the wrap through Toybox. Tesla expanded the tool to other models and renamed it from “Colorizer” to “Paint Shop” with the 2025 Holiday Update, while also adding license plate and window tint customization alongside the wraps.
Custom wraps via mobile app https://t.co/5OydZ26g9p pic.twitter.com/uexU0ZePxu
— Tesla (@Tesla) July 22, 2026
The latest Summer Update removes the USB step from that process. Owners will be able to pull a design from wherever they saved it, whether that’s a download from social media or something built from Tesla’s own GitHub templates, and push it to the car directly through the app.
Tesla reveals 2026 Summer Update with crazy fixes to Nav and more
It’s a small fix relative to the rest of this latest release, which also included expanded Grok voice commands, automatic navigation that learns regular routes, and self-driving stats inside the mobile app, all detailed in our rundown of the full Summer Update. The USB requirement was one of the more common complaints about Paint Shop since it launched. Tesla did not say when the wrap upload change would reach individual vehicles, only that the broader update is rolling out now in waves.



