News
Effects of Winter on Tesla Battery Range and Regen

Winter conditions has begun to set in here in New England with temperatures not exceeding the 20’s. Thankfully I’ve already prepared my winter wheels and tires in advance so I’m not overly worried about the potential for snow, however I’m quickly learning the effects of winter on the battery and overall energy efficiency.
Cabin Temperature
The first order of business is making sure I’m comfortable when I get into the car each day. This means preheating the Model S cabin temperature through the Tesla App (if I happen to remember to) or, better yet, have it scheduled to automatically preheat via the VisibleTesla app.
My daily schedule looks something like this: VisibleTesla preheats the car 30 minutes before I enter and while it’s still plugged in from my overnight charge. This ensures I enter a warm car every morning with no affect on my range – the best of both worlds!
Leaving for work at the end of the day, however, is a bit more erratic so I usually use the Tesla App to preheat on an ad-hoc basis. I realize that this preheating will eat into my overall battery range, but I’m not overly concerned because I have plenty of range to spare even with a 100 mile commute each day. It’s well worth it for a little more comfort.
I enjoy turning on the air conditioner during the summer months but getting into a warm car in the dead of winter is even better!
Limited Regenerative Braking
Prior to the winter, the only times I have experienced limited regenerative braking (regen) was directly after performing range charges in anticipations of my Tesla road trip adventures. The Tesla battery does not have the capacity to receive additional energy (when at a 100% state of charge) thus it disables regenerative braking all together.
Winter months, however, bring a completely different experience with regen. When the Model S is cold it limits the ability to regen since the batteries need to be at an optimal temperature before it receives any additional charge.
A dashed yellow line appears on the center display indicating that regenerative braking is limited. If you’ve been accustomed to driving with regen on, this new behaviour (with regen disabled) will feel and drive very differently.
I found myself quickly rolling towards the cars in front of me as I instinctively ignored the brakes and assumed that the car would just come to a gradual stop by letting go of the accelerator pedal. That obviously didn’t happen with regen limited. You’ll need to use your brakes so be careful not to “over press” it as you quickly adjust to driving with brakes again.
This winter-induced form of limited regeneration lasts for a very long. I wasn’t sure if the lack of regen was isolated to the weather conditions for that particular day so I decided to log my results over a larger sample of several days.
Here’s what I noticed about the effects of winter on Tesla’s regenerative braking:
- There appears to be a linear easing off of the “regen cap” through the first 30 minutes. At 0 miles, when the car is just started, the amount of regen is capped at 20 kW.
- 25 minutes into my drive, the regen cap is loosened to 40 kW.
As you can see from some of my data points, it took me over 45 minutes of driving (30 miles covered) before the regenerative braking behavior was back to normal — that’s almost my entire drive home!
I’ve been experimenting with various approaches to avoid the regen capping. One of which is timing my overnight charge so that it completes right at the time I’m about to leave for work. This ensures that the batteries are at a good temperature, by the time I begin driving, and with no regen cap in place. Timing it perfectly can be tricky.There’s been a few occasions where my charge completed earlier than expected and as a result the batteries cooled off before I got to drive.Here again VisibleTesla can help, but it’s an area that I wish Tesla would address directly —
add a feature to allow users to specify the END time for a charge as opposed to the start time. The Model S should calculate when charging begins based on the set end time.
I’ve been experimenting with ways to reduce the after-work limited regenerative braking occurrences but since there’s no charging infrastructure at my work, I can’t pre-warm the batteries. I’ve even tried warming up the cabin temperature in advance to see if this would have an impact on regenerative braking but unfortunately it doesn’t.
Higher Energy Use
Cold weather definitely affects energy use on the Model S. My tires, while great for winter, are less efficient — they’re not the low rolling resistance tires that came with the Model S. I’m also using extra energy for warming the cabin (despite my chilly 66 F year-round cabin temperature setting). The Model S is also using extra power when managing the battery temperature.
Prior to winter my average energy consumption was around 300-315 kWh/mi but now I’m averaging 350-365 kWh/mi or approximately 16% more energy used than summer months. I’m also using my brakes more during the winter, as a result of the limited regenerative braking, so that will also introduce more wear and tear.
One piece of advice from Tesla is to use seat heaters to warm yourself up over cabin heat. The seat heaters apply heat directly to your body and thus a more efficient use of energy. If you have your cabin temperature set at 72 F , try reducing it to 68 F and use your seat heaters to warm yourself up.
I’m sure I’ll be uncovering a lot more tips and interesting findings over the next few months especially as the snow storms start blowing in and temperatures dip into single digits! Stay tuned!
Elon Musk
Tesla gives a massive update on its affordable model plans
Tesla’s affordable model won’t have the opportunity to cannibalize sales of the Model 3 and Model Y as the company will wait until Q4 to launch it.

Tesla gave a massive update on its plans to launch a potential lineup of affordable models, something that it has been developing for the past couple of years.
During its Q2 2025 Earnings Call yesterday, Tesla revealed some new details regarding the production plans of the affordable vehicles, and while the company did not shed any light on the potential price, we now have some information on the plans and timing of the cars.
Tesla ‘Model Q’ gets bold prediction from Deutsche Bank that investors will love
In the Shareholder Deck released at the time the market closed, Tesla said it successfully completed initial production of the affordable models in the first half of the year, more specifically in June. The company said these vehicles would begin volume production in the second half of this year:
“We continue to expand our vehicle offering, including first builds of a more affordable model in June, with volume production planned for the second half of 2025.”
During the call itself, CEO Elon Musk confirmed these cars would be available starting in Q4. This makes sense as the EV tax credit will not expire until the end of Q3. Launching the affordable models before the tax credit is gone would likely cannibalize sales of Tesla’s current mass market vehicles, meaning the Model 3 and Model Y.
Musk said:
“As we said, we started production in June, and we’re ramping. We probably built some things throughout the quarter, and given that we started in North America and that our goal is to maximize production with higher rates by the end of Q3, we’re going to keep pushing hard on our current models to avoid complexity. Then, fortunately, that rolls away. We’ll be running with the more affordable models available for everyone in Q4.”
The pricing of the affordable models still remains a mystery, and because the term “affordable” is subjective, we truly do not know what to expect. In the past, Musk has stated that the affordable models will cost under $30,000, including the tax credit.
With that being phased out, we are hoping to see a price around the $35,000 mark, especially since the least expensive Tesla, the Model 3 Long Range Rear-Wheel-Drive, is $42,490 before the tax credit.
The affordable models could be Tesla’s key to returning to annual growth, as in the past two years, it has delivered 1.8 million vehicles. The number of vehicle deliveries might not be as important as the company’s focus truly turns to autonomy and Robotaxi, but many investors will still look at this annual delivery figure as a sign of EV adoption and its potential trends moving forward.
Investor's Corner
LIVE BLOG: Tesla (TSLA) Q2 2025 earnings call updates
The following are live updates from Tesla’s Q2 2025 earnings call.

Tesla’s (NASDAQ:TSLA) earnings call comes on the heels of the company’s Q2 2025 update letter, which was released after the closing bell on July 23, 2025.
Tesla’s Q1 2025 Results:
Total Revenues: $22.5 billion
Total automotive revenues: $16.7 billion
Total GAAP gross margin: 17.2%
Gross Profit: $3.88 billion
EPS non-GAAP: $0.40 per share
The following are live updates from Tesla’s Q2 2025 earnings call. I will be updating this article in real time, so please keep refreshing the page to view the latest updates on this story.
16:22 CT – Good day to everyone, and welcome to another Tesla earnings call live blog. Tesla had a pretty big quarter, and while the company’s vehicle deliveries are still down year-over-year, the Robotaxi pilot has been launched in Austin.
Now to see if this earnings call starts on time. Interestingly enough, the EV maker has not posted a link to its Q2 2025 earnings call livestream on its official @Tesla X account yet.
16:26 CT – The earnings call’s livestream on YouTube, however, is up:
16:28 CT – I wonder which Elon we will get on today’s earnings call? Will be get super locked-in Elon, serious Elon, or lighthearted Elon? Whichever Elon we get, TSLA stock will probably show some reaction in after-hours trading.
16:30 CT – Travis Axelrod of Tesla’s Investor Relations team opens the call. He states that Tesla CEO Elon Musk and other executives are present. And, here’s Elon’s opening remarks.
16:33 CT – Elon opens with the launch of Tesla’s Robotaxi service in Austin, which has gotten “bigger and longer” over the past few weeks. He stated that the service area for Robotaxi services in Austin will get even bigger and longer soon. He mentions the Robotaxi service’s expansion to the Bay Area, Arizona, and Florida in the coming months.
“I think we’ll have Robotaxi in half the population of the US by the end of the year?” Musk said, highlighting that this is subject to regulatory approval. He added that Tesla is expanding its Robotaxi service cautiously.
16:35 CT – Elon noted that the Model Y became the best-selling car in several countries in n Türkiye, Netherlands, Switzerland and Austria in June. This was despite the Model Y selling in these countries without its killer feature–FSD. Despite the regulatory challenges, Elon noted that Tesla will get these approvals, and he is hoping that some areas in Europe should experience FSD in the coming months. “It really is the single biggest demand driver,” Musk said.
16:37 CT – Elon also mentioned the launch of the Tesla Diner. “This is a very special diner,” Musk said, stating that the facility is a “shining beacon of hope.” He joked that it is rare that a diner makes the news, but the newly launched restaurant is quite something.
On the other hand, Elon noted that Tesla is making significant improvements to its FSD software, and that the company could probably 10X the parameter count from what users are currently experiencing.
16:43 CT – The CEO also highlghted the growth of Tesla Energy, which he noted was a “really big deal.” As for Optimus, Musk stated that the humanoid robot is in its current second generation. Its third generation will be “exquisite,” the CEO noted.
“Tesla is by far the best in the world in real-world AI,” Musk said. He threw some shade at Waymo as well, stating that while Google is good at AI, the tech giant is not as good in real-world AI applications. All those years producing and designing cars matter.
“Tesla has the highest intelligence density in AI so far,” Musk said. “Intelligence density will be a very big deal in the future.”
16:46 CT – Musk stated that Tesla will probably see prototypes of Optimus Version 3 this year, and scale production next year. Tesla will be ramping these initiatives as fast as possible, considering the company’s aspirations to produce millions of Optimus robots per year. Musk believes that a rate of 1 million Optimus robots per year is feasible within five years.
“We’re not always on time, but we get it done,” Musk said, referencing the company’s tendency to make the impossible feel late. He also reiterated the idea that Tesla can be the omst valuable company in the world if it executes very well.
16:50 CT – Tesla CFO Vaibhav Taneja mentioned the company’s milestone of delivering a car autonomously to a customer for the first time in Q2. He also mentioned the effects of the Trump administration’s regulatory changes for electric vehicles.
He mentioned that Tesla is seeing more test drives, and the company did start the production of more affordable cars in the first half of the year, with volume production planned for the second half of the year.
16:55 CT – Investor questions begin with an inquiry about Tesla Robotaxis. Tesla noted that it expects to 10X its current operation in the coming months. The Bay Area is next, and Tesla is looking to expeedite the service’s approval.
As for technical and regulatory hurdles for Unsupervised FSD, Elon Musk stated that he believes the feature should be available in a number of cities by the end of the year. Tesla, however, is being extremely paranoid about safety, so Unsupervised FSD’s rollout will be very, very cautious. Also, Tesla vehicles from Fremont could deliver themselves to customers autonomously by the end of the year.
16:58 CT – A question about Optimus was asked. Elon noted that Optimus V3 is the right design for the humanoid robot, since it has all the degrees of freedom necessary to ensure that it can do tasks very well. He also set expectations on Optimus’ ramp.
“If we are not making 100,000 OPtimus robots per month in 60 months, I will be shocked,” Musk said.
Another question was asked about Tesla’s affordable model. Tesla noted that production did start in the first half of 2025, and a ramp is expected in the remaining months of the year. As for Tesla investing in xAI, the CFO noted that this earnings call is not the right venue to discuss such matters.
17:07 CT – Elon Musk admitted that he is creating another Master Plan. He reiterated the idea that the future of Tesla is exciting, and the company has the potential to change the world.
An investor question about HW3 vehicle was asked. Tesla noted that it is focused on rolling out Unsupervised FSD to HW4 cars first, then go back to see what can be done with HW3 cars.
As for how the Trump administration’s regulations could affect Megapack sales, Tesla noted that it still believes solar and battery projects should still see growth. “We’re forecasting a very strong second half of the year,” the company noted. Tesla is expected to launch its third Megafactory in Houston next year.
17:11 CT – Analyst questions begin. The analyst asks if Tesla could share KPIs on Tesla’s Robotaxi rollout. Tesla noted that it only has a handful of vehicles for now, but the company has more than 7,000 driverless miles in Austin so far. Elon also emphasized that the Robotaxi service is designed for maximum comfort and safety, and that the Cybercab is designed to be optimal when it comes to cost. “Cost per mile for the Cybercab will be little,” Musk said.
“Tesla Roboatxi fleet will go from tiny to gigantic in probably a very short period of time,” Musk added.
17:15 CT – Adam Jonas of Morgan Stanley asked if Elon is comfortable with having just 13% control of Tesla. Elon Musk admitted that this is a major concern for him, and he is hoping that the topic could be discsused in the upcoming annual shareholder meeting.
Elon joked that he wants to have enough control in Tesla that he cannot be ousted by activist investors, but not tool large that he cannot be removed, just in case he goes crazy. He reiterated the idea that he would be joined by several Optimus robots onstage at the upcoming annual shareholder meeting.
17:21 CT – Barclays asks Elon about the idea of putting non-Tesla vehicles being put in the Robotaxi network. Elon admitted that Tesla has really not thought about it much, though the company is extremetly focused on safety.
Goldman Sachs asked if Tesla could comment on FSD subscription trends. Tesla noted that since FSD V12 was launched in North America, there has been a notable improvement in consumer adoption. When asked if more price adjustments for FSD should be expected, Elon noted that Tesla is in a transition period in the United States. He admitted that Tesla could have a few rough quarters, but once autonomy is at scale, he would be surprised if Tesla’s economics are not compelling.
17:29 CT – Truist asked about Tesla’s more affordable models and any updates on what it would look like. Elon Musk joked that it would just look like the Model Y. He also noted that people desire Teslas, but the cars are still not affordable enough.
When asked about xAI and Tesla, Elon Musk explained that the two companies are very different. He noted that there are also some people that like to work in xAI but not Tesla, and vice versa. Would they like to work on superintelligence, or real-world AI? Both are compelling endeavors.
17:30 CT – And that wraps up Tesla’s second quarter 2025 earnings call! Thank you so much for following along as we covered this event. Until the next time!
Investor's Corner
Tesla (TSLA) Q2 2025 earnings results
Tesla posted total revenues of $22.496 billion and non-GAAP EPS of $0.40 per share.

Tesla (NASDAQ:TSLA) has released its Q2 2025 earnings results in an update letter. The document was posted on the electric vehicle maker’s official Investor Relations website after markets closed today, July 23, 2025.
Tesla’s Q2 earnings come on the heels of a quarter where the company produced over 410,000 vehicles, delivered over 384,000 vehicles, and deployed 9.6 GWh of energy storage products. The second quarter also saw the launch of the Roboaxi service’s pilot program in Austin, a notable step forward for the company’s self-driving program.
Tesla’s Q2 2025 earnings in a nutshell
As could be seen in Tesla’s Q2 2025 update letter, the company posted GAAP EPS of $0.33 and non-GAAP EPS of $0.40 per share. Tesla also posted total revenues of $22.496 billion.
In comparison, Wall Street expected Tesla to post earnings per share of $0.39, down 25% from a year ago. Tesla’s revenue is forecasted to fall 13% to $22.19 billion, and analysts also expect the electric vehicle maker to post lower margins this quarter.
Tesla’s other Q2 metrics
For the second quarter, Tesla’s total revenue decreased 12% YoY to $22.5B. Operating income also decreased 42% YoY to $0.9B, resulting in a 4.1% operating margin. Tesla still has a strong war chest, as the company’s quarter-end cash, cash equivalents and investments was $36.8B.
Product Plans
Tesla noted in its Q2 2025 update letter that the company remains focused on “prudently growing our vehicle volumes in a capex efficient manner by using our existing vehicle production capacity before building new lines.” Still, Tesla noted that plans for new vehicles that will launch in 2025 remain on track, including initial production of a more affordable model in 1H25.
Tesla also reiterated that the Cybercab will be produced using the company’s upcoming “Unboxed” manufacturing process. Volume production of the Cybercab is expected to start sometime in 2026.
Below is Tesla’s Q2 2025 update letter:
TSLA-Q2-2025-Update by Simon Alvarez on Scribd
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