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Why are Tesla Superchargers Only for Long-distance Travel?

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Liquid-cooled Tesla Supercharger in Mountain View, CA

Liquid-cooled Tesla Supercharger in Mountain View, CA

Before going on vacation around July 4th holiday, PlugInsights sent a short survey to me with questions about Tesla supercharging procedures and also about recent comments by Elon Musk. About half way into the short survey, it delves into Elon Musk’s supercharging “overuse” comment regarding some daily Tesla commuters relying on the free charging stations in southern California.

My first thought, this again. Musk’s comments made some waves last month but why dredge this issue to the surface in the form of a survey from PlugInsights, a division of RECARGO.

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Is something afoot at Tesla? Why is the company worried enough to conduct a survey about this topic and especially Musk’s comments at the annual shareholders meeting. One question from the survey actually discusses the actual comments by Musk. “Before today, were you aware that Mr. Musk recently made these statements?”

Below are Musk’s comments at the recent annual shareholders meeting held in June:

(paraphrased via the survey)…”that superchargers are meant for free, long-distance travel” and “that drivers who aggressively use the network for local charging may receive an email reminder that it’s ‘cool to do this occasionally but it’s meant for a long-distance thing.’

So why did Elon Musk comment on this relatively small issue? Ashley Vance recent biography on Elon Musk points out that Musk usually doesn’t get involved in PR, unless an issue threatens one of his companies. So how could this threaten Tesla Motors? My speculation is the very real possibility of  battery capacity loss and drastically reduced range with multiple instances of DC fast-charging on a daily basis.

Could these patterns lead to drastically reduced battery packs ranges by year three or four of ownership and possibly lead to Tesla replacing a lot of battery packs, due to their warranty coverage?

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My speculation centers around 120 kW of DC energy flowing into the battery pack on a daily basis. Did Tesla test battery packs for multiple, daily DC-charging usage? Maybe not.

Musk mentioned at the annual shareholder meeting that fast charging was intended for destination traveling and implied it wasn’t for daily use by commuters.

The Idaho National laboratory conducted a study on DC fast-charging and its effects on battery packs some years ago and released findings in 2014. Using 2012 Nissan Leafs, the study compared the effects of different types of charging: level 2 charging (3.3 kW) and DC fast-charging (50 kW).

The study revealed after 40,000 miles of testing that there was little loss of initial capacity and that the DC-fast charging battery pack had only lost 3 percent more than the other Nissan Leaf using level 2 battery charging.

Survey on usage of Tesla Superchargers

Screenshot of PlugInsights survey to Model S owners

However, Tesla Superchargers are dishing out 120 kW DC versus the Idaho study of 50 kW, more than 2x the amount of electricity coming into battery pack. That’s a lot stress on the battery management system to keep heat levels down, plus these car owners are supercharging daily, maybe doing it twice a day?

Many automakers have said that DC fast charging is fine on the battery pack, as long as it’s not done excessively. It seems twice a day could be considered excessive and cause concern for Tesla execs. This could be leading up to some proviso with excessive supercharging and the battery pack warranty, hence the PlugInsights survey on usage and expectations.

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What about you, any other thoughts on why this is such an issue for Tesla?

** My other mild theory is Tesla’s rising electricity costs for owners employing supercharging only mode. The results of PlughInsights survey showed that 26% of Model S owners polled have used Tesla Superchargers as a free local alternative to home charging.

 

"Grant Gerke wears his Model S on his sleeve and has been writing about Tesla for the last five years on numerous media sites. He has a bias towards plug-in vehicles and also writes about manufacturing software for Automation World magazine in Chicago. Find him at Teslarati

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Tesla top exec Tom Zhu highlights Elon Musk’s “prime directive” for FSD

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Credit: Tesla AI/X

Tesla Senior Vice President for Automotive Tom Zhu, a key executive behind the company’s success in China and Giga Texas, recently highlighted the “prime directive” of Full Self-Driving (FSD).

Zhu’s comments emphasize Tesla’s uncompromising focus on safety, which has made the company’s vehicles among the safest on the road.

Echoing Musk’s vision for safe autonomous driving

Zhu’s post quoted Musk’s statement from 2021, where the CEO reportedly stated that FSD must avoid accidents even if the most ridiculous events happened in the middle of the road. Zhu stated that beyond everything, Tesla’s systems like Autopilot and FSD are designed to keep passengers safe.

“Elon said it in 2021: “For self-driving, even if the road is painted completely wrong and a UFO lands in the middle of the road, the car still cannot crash and still needs to do the right thing. The prime directive for the autopilot system is: Don’t crash. That really overrides everything. No matter what the lines say or how the road is done, the thing that needs to happen is minimizing the probability of impact while getting you to your destination conveniently and comfortably,” Zhu stated.

“The prime directive, the absolute priority, is to minimize the probability of injury to yourself or to anyone on the road, to pedestrians, or anything like that. It can’t be dependent on the road markings being correct.”

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Tesla leadership rallies behind global FSD rollout

Tom Zhu, who previously led Tesla China through its record-breaking growth phase, now oversees automotive operations worldwide. He has reportedly become a problem solver for Elon Musk over the years, with previous reports stating that he was brought in to help Giga Texas optimize its vehicle production ramp.

Zhu’s comments may sound ambitious, but FSD has proven that it values safety above all else over the years. This was highlighted recently in an incident in Australia, when a Model Y was hit by what could very well be a meteor. Despite the impact and part of its windshield melting, the vehicle was able to drive safely and keep its passengers safe.

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Elon Musk’s biggest tech rival just canceled his Tesla Roadster

“I really was excited for the car! And I understand delays. But 7.5 years has felt like a long time to wait,” Altman said.

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Tesla Roadster at Tesla Battery Day 2020 Credit: @BLKMDL3 | Twitter

Elon Musk’s biggest tech rival just canceled his reservation for a Tesla Roadster, the supercar the company has been developing for nearly eight years.

Sam Altman, the CEO of OpenAI, announced on X on Thursday evening that he canceled his Tesla Roadster reservation, or at least is trying to:

Altman placed his Tesla Roadster reservation with a $50,000 deposit way back on July 11, 2018. However, he recently decided that he had waited long enough and decided to email the company to officially cancel the order.

“Hi, I’d like to cancel my reservation. Could you please refund me the $50k?” Altman emails to reservations@tesla.com.

He then received an immediate response, but not from Tesla. Instead, it was a bounce-back message from Google, stating that the message could not be delivered to the email because it was not active.

Altman then provided a reason for his cancellation, and it was not related to the intense rivalry he had with Elon Musk:

“I really was excited for the car! And I understand delays. But 7.5 years has felt like a long time to wait.”

Altman and Musk have a lengthy history with one another that dates back to 2015, when OpenAI was created. The feud has resulted in lawsuits over breaching founding agreements by prioritizing profits.

Musk has been especially critical in recent years because of Altman’s decision to turn OpenAI into a for-profit business that he says is “built on a lie.”

This year, Musk offered over $97 billion to buy OpenAI, and a judge blocked his request to stop the company from being converted into a for-profit in March.

OpenAI then countersued Musk in April, while xAI, Musk’s company, sued OpenAI for allegedly stealing secrets through poached employees in September.

Elon Musk explains why xAI sued OpenAI over alleged trade secret theft

Regarding the Roadster, Tesla has been developing it for several years and has delayed its release for five consecutive years. The company says it will have a demo of what it has changed since it was unveiled in 2017 later this year, but no date has been set quite yet.

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Neuralink’s first human patient reflects on 21 months with brain implant “Eve”

He credited Neuralink and Elon Musk for giving him “the opportunity to be the first,” as the experience has been life-changing.

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Credit: Neuralink

Nolan Arbaugh, the first person to receive Neuralink’s brain implant, shared his 21-month update this week, reflecting on how far he’s come since his groundbreaking surgery. 

Arbaugh, who became paralyzed after a diving accident, stated that his Neuralink implant, which he fondly calls “Eve,” continues to transform his daily life.

Arbaugh celebrates Neuralink’s progress

In his post on X, Arbaugh revealed that his hands-on involvement with Neuralink has decreased as more participants have joined the program. “The team might call me to test something once in a blue moon,” he wrote, adding that he’s happy to see others experience the technology’s full potential, from operating robotic arms to typing on keyboards with thought alone.

He credited Neuralink and Elon Musk for giving him “the opportunity to be the first,” as the experience has been life-changing. Despite a recent pressure sore that temporarily kept him bedridden, Arbaugh noted that he is still very optimistic, describing his journey as one of resilience, faith, and gratitude. He also teased “big news” coming for his two-year update in early 2026.

Studies and a growing public speaking career 

These days, Arbaugh stated that he is focused on his studies in neuroscience, taking full-semester courses in chemistry, biology, and pre-calculus while earning top grades. He credited “Eve” for making school possible again, as his current academic workload would have been “impossible without Neuralink.” Arbaugh stated that he has also begun building a speaking business after delivering a paid talk at Fortune’s Brainstorm Tech conference.

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“At the beginning of September I attended the Fortune Brainstorm Tech conference in Park City, Utah, as a paid speaker. That sentence seemed like an impossibility two years ago. But it’s just the beginning. My business is built, my legal is near complete, I’m surrounding myself with a team of amazing folks, and I plan on speaking once or twice a month in the same fashion beginning as soon as January. 

“Conferences, interviews, podcasts—you name it, and I want to be there spreading the word about how amazing this technology is, the growth it’s experiencing, the possibilities of the future, and how it has so deeply affected my life,” Arbaugh stated.

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