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Tesla is using a new 12V Lithium-ion battery in the Model S Plaid

Credit: Tesla / Tesla Raj

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Among the many changes that Tesla implemented in the new Model S Plaid, a new, 12-volt lithium-ion battery is one of the most subtle yet significant improvements the company made to its flagship sedan. The new 12V li-ion battery replaces the conventional lead-acid battery that has been considered the “standard” in automobiles for a long time. However, Tesla aimed to improve the life cycle of this low-voltage cell to improve convenience and lifespan for owners.

The new, smaller, more compact 12V battery actually holds several advantages over the previously used battery that Tesla used. While weight and size are obvious improvements, one of the biggest advantages is an increased lifespan. The previous lead-acid battery did not have a consistently long lifespan and was sometimes changed up to three times a year by some owners. This could be due to the overwhelming amount of strain that is put on battery cells when running an electric vehicle. In gas-powered and combustion engine vehicles, the lead-acid battery is a suitable choice because it is only used for starting the engine and minor electrical tasks like powering interior lights. In electric cars, the 12V battery could handle more tasks, thus decreasing the battery life.

Tesla Model S Plaid with ‘practically alien’ tech unleashed: 1000 hp, lowest drag coefficient, and PS5-level gaming

Lithium-ion batteries are more suitable for EV applications, especially as lead-acid batteries are more advantageous to utilize with vehicles that have high currents when starting an engine. This doesn’t apply to electric vehicles, and owners have been upgrading to lithium-ion 12V batteries for some time.

Initial photos of the new lithium-ion 12V battery seem to illustrate a significant number of advantages, including size and weight. A photo from Tesla Raj shows just how compact the new battery is, leaving more space under the hood and eliminating some of the weight that was held by the previous lead-acid battery.

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Looking into the specs that Tesla outlines in its new Model S owner’s manual, the low voltage battery has a rating of 6.9 amp hours, with a voltage of 15.5v. Previously, Tesla utilized a 33 amp-hour or higher battery with a 12V negative ground.

Credit: Tesla

The Model S Plaid could be looked at as a transitional vehicle for Tesla’s future models. Not only is the car a marvel of software and infotainment, but Tesla also utilized subtle technologies, like the new 12-volt battery lithium-ion battery to remove weight and increase space, to make the Plaid Model S its best vehicle to date.

Check out Tesla’s unveiling of the Plaid Model S below.

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Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

Investor's Corner

Tesla needs to confront these concerns as its ‘wartime CEO’ returns: Wedbush

Tesla will report earnings for Q2 tomorrow. Here’s what Wedbush expects.

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Credit: Tesla

Tesla (NASDAQ: TSLA) is set to report its earnings for the second quarter of 2025 tomorrow, and although Wall Street firm Wedbush is bullish as the company appears to have its “wartime CEO” back, it is looking for answers to a few concerns investors could have moving forward.

The firm’s lead analyst on Tesla, Dan Ives, has kept a bullish sentiment regarding the stock, even as Musk’s focus seemed to be more on politics and less on the company.

However, Musk has recently returned to his past attitude, which is being completely devoted and dedicated to his companies. He even said he would be sleeping in his office and working seven days a week:


Nevertheless, Ives has continued to push suggestions forward about what Tesla should do, what its potential valuation could be in the coming years with autonomy, and how it will deal with the loss of the EV tax credit.

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Tesla preps to expand Robotaxi geofence once again, answering Waymo

These questions are at the forefront of what Ives suggests Tesla should confront on tomorrow’s call, he wrote in a note to investors that was released on Tuesday morning:

“Clearly, losing the EV tax credits with the recent Beltway Bill will be a headwind to Tesla and competitors in the EV landscape looking ahead, and this cash cow will become less of the story (and FCF) in 2026. We would expect some directional guidance on this topic during the conference call. Importantly, we anticipate deliveries globally to rebound in 2H led by some improvement on the key China front with the Model Y refresh a catalyst.”

Ives and Wedbush believe the autonomy could be worth $1 trillion for Tesla, especially as it continues to expand throughout Austin and eventually to other territories.

In the near term, Ives expects Tesla to continue its path of returning to growth:

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“While the company has seen significant weakness in China in previous quarters given the rising competitive landscape across EVs, Tesla saw a rebound in June with sales increasing for the first time in eight months reflecting higher demand for its updated Model Y as deliveries in the region are starting to slowly turn a corner with China representing the heart and lungs of the TSLA growth story. Despite seeing more low-cost models enter the market from Chinese OEMs like BYD, Nio, Xpeng, and others, the company’s recent updates to the Model Y spurred increased demand while the accelerated production ramp-up in Shanghai for this refresh cycle reflected TSLA’s ability to meet rising demand in the marquee region. If Musk continues to lead and remain in the driver’s seat at this pace, we believe Tesla is on a path to an accelerated growth path over the coming years with deliveries expected to ramp in the back-half of 2025 following the Model Y refresh cycle.”

Tesla will report earnings tomorrow at market close. Wedbush maintained its ‘Outperform’ rating and held its $500 price target.

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Investor's Corner

Tesla (TSLA) Q2 2025 earnings call: What investors want to know

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Credit: Tesla Asia/X

Tesla (NASDAQ:TSLA) is set to report its second-quarter 2025 financial results on Wednesday, July 23, after markets close. With this in mind, Tesla investors have aggregated their top questions for the company at its upcoming Q&A session.

The upcoming earnings report follows a mixed delivery quarter. Tesla produced over 410,000 vehicles and delivered more than 384,000 units globally. In the energy segment, Tesla deployed 9.6 GWh of storage products, continuing momentum for its Megapack business. Tesla’s vehicle sales are currently down year-over-year, though a good part of this was due to the Model Y changeover in the first quarter.

Following are Tesla investors’ top questions for management, as aggregated in Say.

  1. Can you give us some insight (into) how robotaxis have been performing so far and what rate you expect to expand in terms of vehicles, geofence, cities, and supervisors?
  2. What are the key technical and regulatory hurdles still remaining for unsupervised FSD to be available for personal use? Timeline?
  3. What specific factory tasks is Optimus currently performing, and what is the expected timeline for scaling production to enable external sales? How does Tesla envision Optimus contributing to revenue in the next 2–3 years?
  4. Can you provide an update on the development and production timeline for Tesla’s more affordable models? How will these models balance cost reduction with profitability, and what impact do you expect on demand in the current economic climate?
  5. When do you anticipate customer vehicles to receive unsupervised FSD?
  6. Are there any news for HW3 users getting retrofits or upgrades? Will they get HW4 or some future version of HW5?
  7. Have any meaningful Optimus milestones changed for this year or next, and will thousands of Optimus be performing tasks in Tesla factories by year-end?
  8. Will there be a new AI day to explain the advancements the Autopilot, Optimus, and Dojo/chip teams have made over the past several years? We still do not know much about HW4.
  9. Cybertruck ramp is now a year in, but sales have lagged other models. How are you thinking through boosting sales of such an incredible product?
  10. When will there be a new CEO compensation package presented and considered for the next stage of the company’s growth?

Tesla will release its Q2 update letter on its Investor Relations website after markets close on Wednesday. A live Q&A webcast with management will then follow at 4:30 p.m. CT (5:30 p.m. ET) to discuss the company’s performance and outlook.

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Tesla Model Y becomes dual champ in China’s vehicle sales rankings

The Model Y’s recent accomplishments suggest that Tesla really has created something special with the all-electric crossover.

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Credit: Tesla Asia/X

The Tesla Model Y was recently deemed a double champion in China, with the all-electric crossover topping two notable sales charts in the country’s automotive sector. 

The Model Y’s recent accomplishments suggest that Tesla really has created something special with the all-electric crossover, as it has continued to outsell even vehicles that are newer and more affordable. 

Tesla China’s announcement

In a post on Weibo, Tesla China VP Grace Tao highlighted that the Model Y topped China’s sales of SUVs, as well as vehicles that are priced in the 200,000-400,000 yuan range. This is quite remarkable, as the Model Y is one of the more costly entries in both lists. She also invited everyone to try out the vehicle for themselves. “You will know the champion strength after a try,” the Tesla VP wrote.

For the first half of the year, the Tesla Model Y sold 171,491 units domestically in China. This number was enough to make it the country’s best-selling SUV and vehicle priced in the 200,000-400,000 yuan range, but it could still easily be higher in the second half of 2025.

This was because Tesla initiated a changeover in Gigafactory Shanghai to shift the facility’s Model Y line to the vehicle’s new iteration. Had Tesla sold the Model Y in full force during the first half of 2025 in China, the vehicle’s domestic sales figures would have been even more impressive.

Model Y L coming

Tesla China’s Model Y sales could see a notable boost in the second half of the year due to the addition of the Model Y L, an extended wheelbase version of the all-electric crossover. Tesla is yet to announce the details for the Model Y L, though the vehicle was listed in the MIIT regulatory catalog as a six-seater. This is game-changing, as the Model Y’s previous seven-seat configurations have caught criticism for being far too cramped and unusable for adults.

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With the six-seat Model Y in the company’s lineup, Tesla would be able to compete with popular vehicles from rivals like BYD, which have made it a point to release spacious three-row vehicles that are designed to carry the whole family. Provided that the Model Y L is priced correctly, it could very well raise Tesla’s vehicle sales this year.

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