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Tesla Model 3 battery details revealed in partial teardown and analysis

[Credit: Jack Rickard/YouTube]

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The Tesla Model 3’s battery pack was given a partial teardown treatment recently, thanks to the efforts of automotive veteran Jack Rickard and his team at EVTV. Rickard, a car enthusiast who conducts electric vehicle conversions, was ultimately impressed with how the Model 3’s battery was assembled, as well as the refinement of its design.

Rickard’s team was able to acquire the battery pack from a totaled Model 3. Upon removing the pack from the vehicle, the electric car conversion specialist’s interest was piqued by the covering of the battery modules. According to Rickard, the sections of the battery pack directly above the Model 3’s 2170 cells had a thin pad that was strangely wet.

This particular section mentioned by Rickard appear to be the “fluff” that Elon Musk mentioned during Tesla’s Q1 2018 earnings call. According to Musk, the fiberglass mats, which are placed on top of the battery pack, became one of the scenarios that proved human hands can work better than robots.

“They’re basically fluff. We tried to automate the placement and bonding of fluff to the top of the battery pack, which was ridiculous. ‘Flufferbot,’ which was really an incredibly difficult machine to make work. Machines are not good at picking up pieces of fluff. Hands are way better at doing that,” Musk said.

Another particularly compelling observation highlighted by Rickard was that the four modules of the Model 3 battery pack were not identical, with two modules featuring 25 cell groups in series and the other two featuring 23 cell groups in series. Rickard’s team did not tear down the battery packs down to its individual 2170 cells, but it was mentioned that each one of the cell groups includes 46 2170 cells that are connected in parallel. Overall, the vehicle appears to have a total of 4,416 2170 cells, at least for the Model 3’s long-range RWD configuration.

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The Model 3’s battery weighs 1,054 pounds, which, according to the group, places the energy density of the pack at around 168 Wh/kg. The individual modules of the Model 3 battery are lined with a ribbon-like circuit that goes across the top of the modules and into a BMS board. The BMS boards are sub-boards that are installed on each module, and are, in turn, connected to a main board using only two pins. 

One of the Model 3 battery pack’s BMS boards. [Credit: Jack Rickard/YouTube]

Ultimately, the EVTV team was impressed with the Model 3’s battery, with Rickard even dubbing it as the “best battery ever built to date.” The electric car conversion specialist also noted that the Model 3 battery would likely be a favorite among the DIY community. Considering that Tesla is attempting to achieve a production rate of 5,000 Model 3 per week by the end of Q2 2018, Rickard noted that the electric car’s batteries would probably be abundant in the market. This bodes well for DIY enthusiasts like Rickard, who could utilize the modules as batteries for RVs, home battery units, and electric car conversions, among other projects.

Jack Rickard and his team’s observations about the Model 3’s battery are in line with the findings of Sandy Munro during his firm’s teardown of the vehicle. In a recent episode of Autoline After Hours, Munro dubbed the Model 3’s pack as the best in the industry, noting the .2 milliamp differential between each of the battery blocks.

“Nobody can balance batteries that close. Nobody. Nobody’s ever done that,” Munro said.

Watch Jack Rickard and his team’s Model 3 battery teardown in the video below.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla flexes its most impressive and longest Full Self-Driving demo yet

Tesla is flexing a lengthy Full Self-Driving demo from San Francisco to Los Angeles.

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tesla full self-driving demo from san francisco to los angeles
Credit: Tesla

Tesla its most impressive and longest demo of the Full Self-Driving suite, showing a zero-intervention trek from the San Francisco Bay Area to Los Angeles. The drive required no interventions from the vehicle operator, the video showed.

It also included a quick Supercharging stop about two-thirds of the way in.

Tesla has been extremely confident in the performance of the FSD suite since releasing it years ago. However, with improvements in data comprehension and storage with its neural nets, as well as a more refined Hardware system, FSD has made significant strides over the last year.

I took a Tesla Model Y weekend-long Demo Drive – Here’s what I learned

Tesla’s prowess with driving tech has established the company as one of the industry leaders.

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In a new video released on Tuesday, Tesla showed a drive of roughly 360 miles from San Francisco to Los Angeles, a trek of about six-and-a-half hours, with zero interventions using Full Self-Driving:

Full Self-Driving is not fully autonomous, but it does operate under what Tesla calls “Supervised” conditions. This means that the driver does not have to have their hands on the wheel, nor do they have to control the accelerator or brake.

Instead, Tesla’s internal cabin-facing camera tracks eye movement to ensure the driver is ready to take over at any time and is paying attention.

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The version of FSD used in this example is likely the version that the public has access to; the only differentiating factor would be the Hardware version, as older vehicles do not have HW4.

With Tesla’s Robotaxi suite in Austin operating since late June, the company stated that those vehicles are using a version that is not yet available to the public. It does not require anyone to be in the driver’s seat, which is how the vehicles are able to operate without anyone in the driver’s seat.

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Elon Musk’s new $29B Tesla stock award gets strange synopsis from governance firm

Did CGI not realize that Tesla Shareholders supported Musk being paid not once, but twice?

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elon musk speaking
Credit: TED

Elon Musk was recently awarded around $29 billion in Tesla stock as the company’s Board of Directors is attempting to get its CEO paid after his original pay package was denied twice by the Delaware Chancery Court.

But a new and strange synopsis from the Corporate Governance Institute (CGI) says the award is potentially a strength move to “endorse the will of a powerful CEO.” The problem is, in the same sentence, the firm said the new award brings up a “question of whether the board exists to steward a company in the interests of all stakeholders.”

The problem with their new analysis of Musk’s pay package is that shareholders voted twice on Musk’s original pay package of $56 billion. They voted to give Musk that sum on two separate occasions.

Musk’s original $56 billion pay package was approved by shareholders twice; once in 2018 and once again last year. Last year’s vote was in response to Delaware Chancery Court Kathaleen McCormick’s decision to revoke the “unfathomable sum” from Musk.

Shareholders still showed support for Musk getting paid. Tesla said in its new award to the CEO that this is a way to give him compensation for the first time in seven years.

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CGI said in its note (via TipRanks):

“When a board builds its strategy around a single individual, it creates a concentration risk, not just operationally, but culturally and ethically. If that individual becomes a source of volatility, the company becomes fragile by design.”

What’s strange with this type of narrative is the fact that Tesla’s valuation has skyrocketed with Musk at the helm. Go back to 2020, and the stock is up over 200 percent. Since Musk’s $56 billion pay package was introduced in 2018, shares are up well over 1,000 percent.

Tesla engineer explains why Elon Musk deserves new pay package

Musk’s 2018 pay package was also not awarded to him without performance-based incentives. He was required to reach certain growth goals, all of which were accomplished through the launch of new vehicles and the advancements of its driver-assistance suites, like Autopilot and Full Self-Driving.

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It is tough to agree with CGI’s perception of Musk’s new pay plan, especially as it is much less than what shareholders voted on twice. Musk deserves to be paid for his contributions to Tesla.

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Tesla Robotaxi is headed to New York City, but one thing is in its way

Tesla is working to hire Vehicle Operators in New York City, but the company still needs some regulatory hurdles to go through.

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tesla store in New York City
Credit: Tesla

Tesla Robotaxi will be headed to New York City, but there is one huge thing that stands in its way: approval to test autonomous vehicles.

Tesla is expanding its Robotaxi platform across the United States as it currently operates in Austin, Texas, and the Bay Area of California.

The company has also been seeking approvals in several other states, including Nevada, Arizona, and Florida.

However, the company is also working to expand to major metropolitan areas across the U.S. that it has not explicitly mentioned, as it attempts to reach CEO Elon Musk’s goal of giving half of the country’s population access to the platform by the end of the year:

It appears New York City is next on the list, according to a job posting on Tesla’s Careers website.

The company says it is hiring a Vehicle Operator for Autopilot in Flushing, New York, a section of the borough of Queens. Queens is connected to Brooklyn and Long Island, so it seems more ideal than launching in Manhattan or the Bronx, where traffic is heavy and charging is not as readily available.

Tesla’s job posting states:

“We are looking for a highly motivated self-starter to join our vehicle data collection team. As a Prototype Vehicle Operator, you will be responsible for driving an engineering vehicle for extended periods, conducting dynamic audio and camera data collection for testing and training purposes. Access to the data collected is limited to the applicable development team. This role requires a high level of flexibility, strong attention to detail, excellent driving skills, and the ability to thrive in a fast-paced, dynamic environment.”

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It also lists the hours of operation as Tuesday through Saturday or Sunday through Thursday, with its three shifts listed as:

  • Day Shift: 6:00 AM – 2:30 PM or 8:00 AM – 4:30 PM
  • Afternoon Shift: 2:00 PM – 10:30 PM or 4:00 PM – 12:30 AM
  • Night Shift: 10:00 PM-6:30 AM or 12:00 AM-8:30 AM

We wouldn’t count on New York City being the next place Tesla launches Robotaxi. According to a report from CNBC, a spokesperson for the NYC Department of Transportation confirmed Tesla has not yet applied for permits that are needed to operate its ride-hailing service.

For what it’s worth, it could just be the first step in Tesla’s plans. It also has Vehicle Operator job postings in other regions. Houston, Texas, as well as Tampa, Miami, and Clermont, Florida, are all listed on Tesla’s Career postings.

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