News
Plug in America Extends Long-Term Tesla Battery Study to New Model S

Long-time electric vehicle (EV) advocate, Tesla Roadster owner, and Plug in America Chief Science Officer Tom Saxton has been conducting a long-term EV battery study with the goal to gather deep insight on how EV batteries perform (and degrade) over time.
Tom’s long-term battery study has been invaluable not only to the greater EV community but specifically to Tesla fans as well. The take rate for participants for the Tesla Roadster study is close to a 7% sample, while early 85 kWh Tesla Model S owners contributed to a healthy start. In an email correspondence with Tom, he has indicated that he is looking to expand the study to include the new 70 kWh and 90 kWh Model S variants as well as the Model X 90D.
With the EPA recently setting an unprecedented 303.2 mile Highway rating for the redesigned Model S, consumers may want to know what the long-term differences would be between a 90D classic fascia vs a 90D new fascia. Providing a third-party study of the effects of long-term battery health enables all concerned, especially amongst first time Tesla owners / Model 3 reservation holders, with a greater understanding and comfort to know “that Tesla knows what they’re doing.” Furthermore, it gives new EV drivers a sense of comfort when making the switch to electric powered car ownership.
Related:
- Tesla Roadster Battery Survey with Results
- Tesla Model S Battery Survey with Results
- DOWNLOAD (PDF) Plug in America Tesla Roadster Battery Study
Below are charts for the Model S as captured from Plug in America’s survey.
The first chart that caught my eye is one that plots battery range capacity vs. miles accumulated for that vehicle.
This same chart can be used to also track how a particular respondent’s vehicle matches with the universe of respondents. The vehicle in black on the chart below shows the performance of my vehicle in relation to other respondents’ cars.
The third chart that was of interest is the reliability of certain components, namely the drive unit, battery, and charger found on the Model S. I can’t help but wonder if the increase in reported failures on chargers for 2014 vehicles resulted in Tesla abandoning it for the current 48A charger found on newer Model S and Model X.
Lastly, the inspiration to my exhorting fellow owners to participate in this survey was the chart of participant vehicles.
For as many Model S’ are on the road today, I wonder as to the ability of this study in its current count, to fully report on the vehicle with such a small sample size. If you’re a new 70D or 90D Model S owner, please contribute your data to Plug in America through the Model S battery survey form. It’s fairly straight forward and serves our common purpose.
Tesla continues to improve in every sense, but it’s also wise to run a third party check against Tesla’s claimed figures.
Plug in America is an organization that formed out of the advocates that tried to stop the “murder”of the GM EV1 as told through the documentary, “Who Killed the Electric Car?”. According to the Plug in America site, they aim to accelerate the shift to plug-in vehicles powered by clean, affordable, domestic electricity to reduce our nation’s dependence on petroleum, improve air quality and reduce greenhouse gas emissions.
News
Tesla launches in India with Model Y, showing pricing will be biggest challenge
Tesla finally got its Model Y launched in India, but it will surely come at a price for consumers.

Tesla has officially launched in India following years of delays, as it brought its Model Y to the market for the first time on Tuesday.
However, the launch showed that pricing is going to be its biggest challenge. The all-electric Model Y is priced significantly higher than in other major markets in which Tesla operates.
On Tuesday, Tesla’s Model Y went up for sale for 59,89,000 rupees for the Rear-Wheel Drive configuration, while the Long Range Rear-Wheel Drive was priced at 67,89,000.
This equates to $69,686 for the RWD and $78,994 for the Long Range RWD, a substantial markup compared to what these cars sell for in the United States.
🚨 Here’s the difference in price for the Tesla Model Y in the U.S. compared to India.
🚨 59,89,000 is $69,686
🚨 67,89,000 is $78,994 pic.twitter.com/7EUzyWLcED— TESLARATI (@Teslarati) July 15, 2025
Deliveries are currently scheduled for the third quarter, and it will be interesting to see how many units they can sell in the market at this price point.
The price includes tariffs and additional fees that are applied by the Indian government, which has aimed to work with foreign automakers to come to terms on lower duties that increase vehicle cost.
Tesla Model Y seen testing under wraps in India ahead of launch
There is a chance that these duties will be removed, which would create a more stable and affordable pricing model for Tesla in the future. President Trump and Indian Prime Minister Narendra Modi continue to iron out those details.
Maharashtra Chief Minister Devendra Fadnavis said to reporters outside the company’s new outlet in the region (via Reuters):
“In the future, we wish to see R&D and manufacturing done in India, and I am sure at an appropriate stage, Tesla will think about it.”
It appears to be eerily similar to the same “game of chicken” Tesla played with Indian government officials for the past few years. Tesla has always wanted to enter India, but was unable to do so due to these import duties.
India wanted Tesla to commit to building a Gigafactory in the country, but Tesla wanted to test demand first.
It seems this could be that demand test, and the duties are going to have a significant impact on what demand will actually be.
Elon Musk
Tesla ups Robotaxi fare price to another comical figure with service area expansion
Tesla upped its fare price for a Robotaxi ride from $4.20 to, you guessed it, $6.90.

Tesla has upped its fare price for the Robotaxi platform in Austin for the first time since its launch on June 22. The increase came on the same day that Tesla expanded its Service Area for the Robotaxi ride-hailing service, offering rides to a broader portion of the city.
The price is up from $4.20, a figure that many Tesla fans will find amusing, considering CEO Elon Musk has used that number, as well as ’69,’ as a light-hearted attempt at comedy over the past several years.
Musk confirmed yesterday that Tesla would up the price per ride from that $4.20 point to $6.90. Are we really surprised that is what the company decided on, as the expansion of the Service Area also took effect on Monday?
But the price is now a princely $6.90, as foretold in the prophecy 😂
— Elon Musk (@elonmusk) July 14, 2025
The Service Area expansion was also somewhat of a joke too, especially considering the shape of the new region where the driverless service can travel.
I wrote yesterday about how it might be funny, but in reality, it is more of a message to competitors that Tesla can expand in Austin wherever it wants at any time.
Tesla’s Robotaxi expansion wasn’t a joke, it was a warning to competitors
It was only a matter of time before the Robotaxi platform would subject riders to a higher, flat fee for a ride. This is primarily due to two reasons: the size of the access program is increasing, and, more importantly, the service area is expanding in size.
Tesla has already surpassed Waymo in Austin in terms of its service area, which is roughly five square miles larger. Waymo launched driverless rides to the public back in March, while Tesla’s just became available to a small group in June. Tesla has already expanded it, allowing new members to hail a ride from a driverless Model Y nearly every day.
The Robotaxi app is also becoming more robust as Tesla is adding new features with updates. It has already been updated on two occasions, with the most recent improvements being rolled out yesterday.
Tesla updates Robotaxi app with several big changes, including wider service area
News
Tesla Model Y and Model 3 dominate U.S. EV sales despite headwinds
Tesla’s two mainstream vehicles accounted for more than 40% of all EVs sold in the United States in Q2 2025.

Tesla’s Model Y and Model 3 remained the top-selling electric vehicles in the U.S. during Q2 2025, even as the broader EV market dipped 6.3% year-over-year.
The Model Y logged 86,120 units sold, followed by the Model 3 at 48,803. This means that Tesla’s two mainstream vehicles accounted for 43% of all EVs sold in the United States during the second quarter, as per data from Cox Automotive.
Tesla leads amid tax credit uncertainty and a tough first half
Tesla’s performance in Q2 is notable given a series of hurdles earlier in the year. The company temporarily paused Model Y deliveries in Q1 as it transitioned to the production of the new Model Y, and its retail presence was hit by protests and vandalism tied to political backlash against CEO Elon Musk. The fallout carried into Q2, yet Tesla’s two mass-market vehicles still outsold the next eight EVs combined.
Q2 marked just the third-ever YoY decline in quarterly EV sales, totaling 310,839 units. Electric vehicle sales, however, were still up 4.9% from Q1 and reached a record 607,089 units in the first half of 2025. Analysts also expect a surge in Q3 as buyers rush to qualify for federal EV tax credits before they expire on October 1, Cox Automotive noted in a post.
Legacy rivals gain ground, but Tesla holds its commanding lead
General Motors more than doubled its EV volume in the first half of 2025, selling over 78,000 units and boosting its EV market share to 12.9%. Chevrolet became the second-best-selling EV brand, pushing GM past Ford and Hyundai. Tesla, however, still retained a commanding 44.7% electric vehicle market share despite a 12% drop in in Q2 revenue, following a decline of almost 9% in Q1.
Incentives reached record highs in Q2, averaging 14.8% of transaction prices, roughly $8,500 per vehicle. As government support winds down, the used EV market is also gaining momentum, with over 100,000 used EVs sold in Q2.
Q2 2025 Kelley Blue Book EV Sales Report by Simon Alvarez on Scribd
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