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Tesla’s 12V batteries set to receive major improvements through software update

Credit: The Car Colony <a href="https://thecarcolony.com/how-long-do-teslas-last/

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The Tesla ownership experience is intended to be as convenient as possible, with the vehicles themselves needing very little maintenance and practices like charging being effortless with the Supercharger Network’s plug-and-play nature. Yet even amidst all these conveniences, Tesla owners have cited a notable pain point in their ownership experience: their cars’ 12V battery.

RELATED: Tesla 12V Lithium-Ion battery replacement (up to 70% lighter, 4x life)

Similar to traditional vehicles, Teslas utilize a conventional 12V battery to power components like emergency blinkers, airbags, seatbelt pre-tensioners, and the infotainment system. Typical 12V batteries last about 3-4 years under normal use in a fossil fuel-powered vehicle, but among Tesla owners, especially those who drive frequently, the lifespan of 12V batteries have been reported to go down to as short as 1-2 years.

Adding to the inconvenience is the fact that Teslas currently do not have a feature that notifies owners about the health of their cars’ 12V batteries. Tesla owners have responded to this by requesting for an update that would allow them to view the current state of their vehicles’ 12V batteries. One such request was posted on Twitter recently, with Tesla enthusiast @TeslaVibes stating that such a feature needs to be implemented in a future update.

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Interestingly enough, Elon Musk completely agreed with the Tesla enthusiast’s request. The Tesla CEO added that major software improvements are set to be released for vehicles’ 12V batteries, which should allow them to last longer. “Couldn’t agree more — major software improvements are already in place to extend its life & more coming,” Musk wrote.

Considering Musk’s post, it seems that an update that would include 12V battery health warnings is all but confirmed. Such a feature will likely be universally appreciated by Tesla owners, as it could address a particularly infuriating part of the electric car ownership experience. Such a feature, if any, would definitely reduce the instances of owners running into major inconveniences when their vehicles’ 12V battery dies.

Elon Musk’s Twitter post suggests that Tesla is well aware of the limitations that 12V batteries still bring to the EV ownership experience. With this in mind, it would not be surprising if the company comes up with a superior alternative for 12V batteries in the coming years. Tesla, after all, is known for its quick pace of innovation, and the 12V battery is certainly an area that is in great need of some innovation.

It should be noted that the earliest versions of the original Tesla Roadster did not use a traditional 12V battery. Instead, Tesla opted to utilize a portion of the vehicle’s main lithium-ion battery pack to supply 12V for the all-electric sports car’s accessories and lights. The system was quite novel, but the idea was later dropped in favor of a more traditional 12V battery. Conventional 12V batteries were initially used for the original Roadster 2.0, and in every vehicle that Tesla has released since.

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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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NTSB findings on fatal Tesla crash tell a very different story

The NTSB confirmed the driver, not Tesla’s FSD, caused the fatal Texas house crash.

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The National Transportation Safety Board released preliminary findings Wednesday confirming that a Tesla driver, not the vehicle’s software, caused a fatal crash in Katy, Texas in June. The driver, 44-year-old Michael Butler, had engaged Full Self-Driving Supervised mode on Rose Hollow Lane, a residential street with a 30 mph speed limit, before manually overriding the system by pressing the accelerator pedal all the way to 100%. Data recovered from the 2025 Tesla Model 3 showed the vehicle was traveling over 70 miles per hour when it struck a home and killed 76-year-old Martha Avila, who was inside. Weather was clear, the road was dry, and it was daylight.

Texas man charged in fatal Tesla crash where he blamed Autopilot

Butler told authorities he had passed out at the wheel. But security camera footage obtained by the NTSB told a different story, and showed the car accelerating through an intersection before leaving the road entirely. Police also found that Butler’s phone had Google searches including the terms “Tesla FSD not aggressive enough 2026” and “Tesla FSD too timid,” raising serious questions about how he was using the system before the crash. Butler has since been charged with manslaughter. The victim’s family has filed a lawsuit against both Butler and Tesla, alleging negligence.

The NTSB findings aligned directly with what Tesla VP of AI Software Ashok Elluswamy had already stated publicly on X in the weeks after the crash, writing that “the driver manually overrode self-driving by pressing the accelerator all the way to 100%.” The data confirmed his account.

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Investor's Corner

Lucid CEO dispels any rumors of bankruptcy: ‘So far from the facts’

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Credit: Lucid

Lucid CEO Silvio Napoli responded to rumors of an imminent bankruptcy that was reportedly being mulled after a report stated the automaker was working with the firm AlixPartners to iron out its next steps.

The company felt a massive loss on Wall Street yesterday, as the report essentially pushed the stock down as much as 55 percent on Tuesday.

The report, published initially by Eletric-Vehicles.com, claimed Lucid was essentially in dire straits and was told by AlixPartners, a commonly used restructuring advisor, to either take shares private or file for Chapter 11 bankruptcy protection.

Lucid denies rumors of bankruptcy after over 40% stock drop

Lucid’s head of Communications, Nick Twork, immediately challenged the report and stated the company “has sufficient liquidity to carry its operations well into next year.”

Now, the company’s CEO is chiming in as well, stating that the report is “so far from the facts that they require a direct response.”

Napoli said:

“Lucid is not considering bankruptcy or a transaction to take the company private. Those reports are false. The Board did not explore either scenario. Period.

As disclosed in our most recent quarterly filing, Lucid has sufficient liquidity to fund its operations well into next year.

We work with outside advisors to improve operational performance and execution. They are not advising Lucid on a take-private transaction or bankruptcy, and any suggestion that they have recommended either course of action to management or the Board is false.

My priority is clear: turn this company around. That is where the leadership team and I are focused.

I look forward to providing a full update during our quarterly earnings call on August 4th.”

It seems pretty clear that Lucid is confident things will be okay, and, to be honest, they should not have much to worry about, especially considering the company has been backed by the Saudi Public Investment Fund (PIF) for years. It has solid financial backing, and its sales, while weak, are pretty much right on par with a company of this age.

Lucid also sent a Cease & Desist letter to the publication for their report.

Lucid shares have rebounded nicely and are up nearly 21 percent at the time of publication. As soon as the company dispelled the rumors of bankruptcy yesterday, the stock began to climb back toward more reasonable levels.

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Tesla responds to strange Supercharging pricing error with classy move

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(Credit: Tesla)

Tesla has once again demonstrated strong customer focus by swiftly addressing and fully refunding a bizarre Supercharger pricing glitch that affected drivers in Atlantic Canada.

The issue surfaced earlier this month when the Tesla app began displaying dramatically inflated per-minute charging rates at stations in Prince Edward Island and parts of New Brunswick.

One widely shared screenshot from a Charlottetown, PEI Supercharger showed rates reaching ridiculous levels: $6.00 per minute for the 180-250 kW tier, along with $3.57/min for 100-180 kW and $2.29/min for 60-100 kW.

These figures were several times higher than normal Supercharger pricing in the region.

To put the error in perspective, charging at the highest incorrect rate would have been shockingly expensive.

At 250 kW, a common charging speed at Superchargers, a vehicle pulls roughly 4.17 kWh per minute. Under the glitch, a driver spending just 10 minutes at peak power would face a $60 bill. A typical 20- to 30-minute session to add meaningful range could have cost $120 to $180 or more, before any congestion fees.

Tesla gets another layer of gamification with Free Supercharging on the line

By comparison, standard Canadian Supercharger rates usually fall between $0.25 and $0.60 per kWh, making a similar session cost roughly $15–$40. The erroneous per-minute structure, combined with the inflated numbers, turned what should be a convenient stop into a potential financial shock.

The glitch appears to have started sometime around early July, and quickly drew attention on social media as owners questioned whether Tesla had implemented steep hidden increases. Some drivers even reported seeing $0 charges in their history, indicating broader billing confusion.

Tesla’s official Charging account on X stated that correct pricing would roll out at midnight on July 13, so the fix is already in effect. More importantly, the company announced it would waive all fees for every Supercharger session since July 2. This blanket waiver covers the entire affected period without requiring users to file individual claims, with automated refunds expected soon. The decision affects stations in PEI and nearby areas in New Brunswick and Nova Scotia.

It’s a classy move, and rather than issuing partial credits or forcing owners to submit support tickets, Tesla simply absorbed the cost of the system error and made drivers whole. In an industry where hidden fees and bill disputes are common, Tesla’s proactive, no-questions-asked approach reinforces owner trust and highlights the company’s commitment to service excellence.

The incident, while disruptive for a short time, ultimately showcases Tesla’s ability to own mistakes and prioritize customer satisfaction. Atlantic Canada Tesla owners can now charge with confidence again, knowing the company has their back when technology glitches occur.

In an era of complex EV billing, such transparency and generosity are refreshing and set a positive example for the industry.

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