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Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
  • The final cut of TMC Podcast #21 is available now. We covered the recent wide release of FSD Beta and shared our experiences. We also discussed the best times to charge and Tesla's official CCS adapter. You can watch it on YouTube.


  1. D

    fantasy charging system

    Someday I'd like to have solar panels; I'll have to move to a different house (not least so that I can have a driveway, for the charging component of this scenario). I gather that solar goes well with a big battery for the house. But that's expensive, in part because the battery doesn't last...
  2. CS@Tshields

    Vendor Everything you want (and don't) to hear about the new 4680 Tesla Battery - An in-depth look: brought to you by TeslaShields.com

    Tesla launched its latest 4680 battery cell in 2020, a new tabless cylindrical cell with a much larger format that, according to the company, has six times the power and five times the energy capacity while being considerably less expensive. Tesla has been manufacturing the 4680 cells at a...
  3. N

    How long do EV main battery packs last before failure (not just manageable degradation)?

    To start with, I'm not asking this question to attack Teslas or EVs in general. I love my model 3 and wouldn't change it for anything (well, perhaps a new model Y...) How long do EV main battery packs really last before they fail entirely? I'm talking about battery failure making the vehicle...
  4. Xambler

    Dealing with the Anti EV crowd on social media

    I used to just ignore the anti everything crowd, but in recent years realized that if they are the only ones plastering comments on social media sites with minimal efforts to correct their misinformation, well there is a good percentage of the people out there that believe whatever they read. I...
  5. M

    Model 3 CAN BUS logs

    Hello, I am working on Model 3 Batteries standalone. I am trying to close the contactors and I need historical CAN logs of a model 3 to get the 221 ID to close the contactors. I was able to close it on older versions of model 3, but failed on new models 2019+. Does any one has a CAN log of...
  6. T

    4680 on Model Y?

    Hi all! Apologies if this has already been asked. But I am very new to the EV world and don't have as much knowledge when it comes to Tesla. I ordered my MYLR towards end of August of this year. It originally had a delivery date range of December - January 2022. It now has changed to January -...
  7. R

    Europe Model Y - MIC or Berlin

    Hello to all For better understanding, I'm currently in Europe, Portugal. I'm in the process of closing an order on the model Y but then it hit me: Should I get now the model Y (Made in china MIC) or wait (more) for the Gigafactory to get it going with the "2.0" model y with the new battery...
  8. TMC Staff

    Blog Tesla Releases New Video on Battery Manufacturing

    Tesla has released a new video that teases its battery manufacturing efforts in an effort to recruit talent to its cell team. The video shows mesmerizing shots of Tesla’s battery cells moving through the production process. The music of Don Hinton’s 1960 tune “Honey Bee” accompanies the...
  9. TMC Staff

    Blog Tesla Secures New Lithium Supply Deal

    Tesla’s battery supply is getting a bump from a new five-year partnership with China’s Sichuan Yahua Industrial Group Co. Sichuan Yahua, a wholly-owned subsidiary Yaan Lithium, announced the deal Tuesday. Reuters reported a Shenzhen Stock Exchange filing that showed the company put the total...
  10. TMC Staff

    Tesla Is Officially Hiring For Its First Battery Cell Factory

    Tesla will produce the Model Y crossover with its upcoming 4680 cells and a structural battery pack at Giga-Berlin. As Tesla works to ramp up pilot production of battery cells on a small scale in Fremont, California, it’s also looking at the much larger picture in Germany. According to a report...
  11. TMC Staff

    New Cells Boost Tesla Model 3 Battery Capacity To 82 kWh

    Increased energy density leads to a higher capacity. According to the discussion on reddit.com/r/TeslaMotors, the recently refreshed Tesla Model 3 is equipped with more energy dense battery cells (by several percent) and a total capacity of 82 kWh. The precise number reportedly was found in...
  12. TMC Staff

    Tesla To Get Faster-Charging Energy-Dense Battery Cells From Panasonic

    Panasonic has already started converting production lines at Tesla’s Gigafactory 1 to produce the new, improved cells. According to information from a recent lecture for the Stanford StorageX International Symposium, Panasonic‘s new battery cells not only offer greater energy density, but also...
  13. TMC Staff

    Tesla Model 3 With 4680 Pack: Estimated Charging Time, Power, And Size

    It appears charging times could be competitive with gas cars. Tesla’s Battery Day presentation outlined big improvements in cost, energy, charging time, and pack size. We will show you our estimate of the new charging profile, an overlay of 2170 vs 4680 pack size, and an estimated cross-section...
  14. TMC Staff

    Musk Says Giga Berlin Will Be Testbed For New Tesla Technologies

    The German Model Y will have 4680 batteries, the new body structure, and more. Elon Musk clarified a lot of previous doubts we had with a single tweet. The main one was why Fremont did not get the “world’s most advanced paint shop” before Giga Berlin if it still produces vehicles with paint...
  15. TMC Staff

    Elon Musk: Tesla Model S Plaid To Have Structural Battery, 4680 Cells

    And the latest 4680 lithium-ion cells will make up the structure. Elon Musk has confirmed today that the upcoming Tesla Model S Plaid, scheduled for late 2021, will be equipped with the all-new structural battery pack, consisting of the all-new 4680 lithium-ion cells, announced at Tesla Battery...
  16. TMC Staff

    Tesla 4680 Cell: Thermal Analysis Suggests Unique Cooling System Design

    The analysis suggests that Tesla might integrate the cooling into the body. We consulted a mechanical engineer and heat transfer specialist* to get his opinion on how Tesla might design the cooling system for its new 4680 integrated battery system. The analysis suggests that Tesla might...
  17. TMC Staff

    Tesla ‘Battery Day’ to Start at 1:30 P.M. PT

    Tesla will present today new details into its homegrown battery efforts at a “Battery Day” event for shareholders. Chief Executive Elon Musk offered a few hints at what to expect. In a series of tweets on Monday, Musk said the company will present developments that will have more long-term...
  18. TMC Staff

    Blog Musk Hypes ‘Exciting Things’ for Battery Day

    Tesla Chief Executive Elon Musk hyped the company’s upcoming “Battery Day” Friday, promising “many exciting things.” The event, which was delayed for months and rescheduled because of the Covid-19 pandemic, is intended to inform investors on the company’s latest developments...
  19. TMC Staff

    Ex-Tesla Engineer Says Solid-State Batteries Are A 'False Hope'

    Now at the helm of Sila Nanotechnologies, he believes lithium-ion cells will reach $50/kWh in ten years. The whole world currently bets solid-state batteries will be a revolution in energy storage. Some bet even their own money on that, such as Volkswagen and Bill Gates are doing with...
  20. MichaelP90DL

    Apparently Ford will pass on building a battery factory....

    From Teslarati, by Joey Klender: Tesla’s battery strategy will not be adopted by legacy automotive company Ford, because Jim Hackett, the company’s CEO, says there is “no advantage” in migrating capital into owning a cell manufacturing facility. During Ford’s Q2 2020 Earnings Call in late...
  21. RubberToe

    Nuclear powered nano-diamond batteries

    Cross posted from the Energy, Environment and Policy forum since it's also applicable there. Not quite sure that its a battery but more like a small nuclear powered RTG like energy source. Be interesting to see if the output power levels can match 18650 cells. Battery powered car that never...
  22. TMC Staff

    Blog Panasonic Invests $100M to Boost Tesla Gigafactory Production

    Tesla’s battery production efforts have received a $100 million investment from Panasonic, according to a report from Nikkei, a a news outlet based in Japan. Proceeds will be used to expand Tesla’s Gigafactory located in Sparks, Nevada. The report said Panasonic will add another line...
  23. Annie

    Battery Upgrade Possible?

    Does anyone know if its possible to upgrade the capacity of the Model X battery, and range of the car. I have a 2016 October built car with,(I am guessing here based on DOM), the older 18650 type, model 90D. I have been reading upgrade the 20% density upgrade of the the more recent 2170 battery...
  24. TMC Staff

    Blog Panasonic Plans to Bump Battery Density by 20% in 5 Years

    Panasonic’s new “2170” lithium-ion battery cells will improve energy density by 20% over the next five years, the company said Thursday.  The “2170” lithium-ion cells were first used in Tesla’s Model 3 in 2017. The battery already has the highest density, but the latest development should...
  25. TMC Staff

    Tesla's Batteries Will Contain A Lot Of Nickel In Foreseeable Future

    Elon Musk: “Please mine more nickel.” Tesla CEO Elon Musk recently “urged miners to produce more nickel” as the company is happily willing to secure long-term nickel suppliers for battery production. Nickel is one of the key ingredients of the cathode of lithium-ion cells, especially in...
  26. TMC Staff

    Blog Tesla Battery Day Scheduled for September 22

    Tesla’s “Battery Day” will be held at the annual shareholder meeting to be held September 22 in Fremont, Calif. Tesla is expected to reveal details of its next-generation battery cell technology that will be used in a battery pack with a million-mile life, among other innovations. The...
  27. TMC Staff

    Tesla Semi's Latest Makeshift Megacharger Suggests Major Battery Upgrade

    Perhaps this is a forecast of the work of Tesla’s ‘Roadrunner Project’ and million-mile battery tech? Tesla unveiled its Semi back in 2017, and it has been spotted in the wild on numerous occasions. One of the main questions, when the Semi was seen crossing the country, was how was it going to...
  28. n.one.one

    Supercharger Improvements - 2020.24.6.1 - What Battery?

    The release notes for 2020.24.6.1 include these notes for some X & S Models: Supercharger Improvements Your car is now able to charge at V3 Superchargers at up to 225kW peak rates. As usual, when you navigate to a Supercharger, your car will condition its battery during the drive, so it can...
  29. TMC Staff

    Tesla And Panasonic Enter 3-Year Battery Pricing Agreement

    The deal concerns lithium-ion batteries manufactured at the Tesla Gigafactory in Nevada (the cylindrical 2170-type). On June 16, 2020, Tesla announced a new three-year pricing deal (from June 10, 2020) with its long-term (but not exclusive) battery partner – Panasonic. The 2020 Pricing Agreement...
  30. TMC Staff

    Blog Report: Million-Mile Model 3 Planned for China Production

    Tesla’s Model 3 is set to receive a battery pack that will last more than a million miles, according to a report from Bloomberg. Contemporary Amperex Technology Co Ltd (CATL), which makes batteries for Tesla, told Bloomberg that the company is ready to produce a battery that lasts 16 years...
  31. K

    Used Model S prices dropped by 4-8 K today

    Just went on Tesla’s site and saw huge drops in used car prices. I wonder if new batteries are on the horizon ?
  32. TMC Staff

    CATL CEO: Musk Told Me That Tesla Wants To Make Its Own Batteries

    CATL expects to start supplying batteries to Tesla during the second half of 2020. Today we saw several interesting tweets that shed new light on the Contemporary Amperex Technology Co. Limited (CATL) and Tesla partnership in China. According to the Chinese media (via Moneyball), CATL CEO Zhou...
  33. TMC Staff

    Potential Tesla Batteries With Less Cobalt, More Energy Density Revealed

    Tesla’s research partner Jeff Dahn is making many improvements to the potential million-mile battery. It continues to become more clear that Tesla is making multiple improvements to its potential million-mile battery prior to its official announcement and release. We have no way of knowing for...
  34. Brando

    Earth Day - Tony Seba - Disruption of Oil, Petrol Vehicles, Coal

    22 April 2020 - Keynote for Visionary Day at the 1st World CleanTech Week eConvention Tony Seba has studied historical technology disruptions. He also recalls his projections 7 to 10 years back on where we would be in 2020 - see how accurate he was. Interesting and Informative about technology...
  35. TMC Staff

    Tesla Has ‘a Lot to Talk About’ on New Battery Tech

    Tesla Chief Executive Elon Musk says “there’s a lot to talk about” regarding the company’s battery research and development. Tesla planned to invite investors for a “Battery Day” to present the company’s latest developments, however the company postponed the event amid the COVID-19 pandemic...
  36. TMC Staff

    Blog Tesla Postpones ‘Battery Day’ Event

    Tesla’s “Battery Day” event where the company planned to give updates on its electric storage efforts will be delayed until at least “mid May.” Tesla has been chasing the milestone of bringing battery production cost to $100/kWh, and many Tesla watchers hope that the upcoming event will...
  37. TMC Staff

    Blog Tesla Deploying Range Boost Software to Model S, Model X

    Model S and Model X vehicles are getting a new “Range Boost” software and a new display that aims to more accurately present the car’s range. Tesla Chief Executive Elon Musk acknowledged the new feature on Twitter Wednesday after a Reddit users shared details of the update. The software...
  38. Gwgan

    Maine RECs, new RFP

    Maine has increased the timetable of required renewable resources and now has a new RFP which even mentions storage: MPUC: 2020 Request for Proposals for the Sale of Energy or Renewable Energy Credits from Qualifying Renewable Resources Still no solar carve-out so it is a limited market. There...
  39. TMC Staff

    Filing Confirms Tesla’s Battery Supply Deal With China’s CATL

    Tesla and China’s top electric vehicle battery maker CATL have agreed to a supply agreement, according to a Reuters report. While the partnership had been previously acknowledged, a new filing confirms the deal. “‘Tesla will determine the battery purchase volume between July 2020 and June...
  40. thenaimis

    Battery longevity and buying an EV off a dealer lot

    I went to the Audi dealership today to look at the e-tron and one of the things I'd asked about was the ability to set the battery charge limit to prolong the life of the battery. The dealer was oblivious, but I managed to find it in the e-tron menu system where I believe it had been set to...
  41. TMC Staff

    Tesla Cybertruck & Semi: Radical New Battery Design Anticipated

    Check out our fun speculation based on known quantities. Tesla has something up its sleeve and, as usual, it’s not telling anyone about it yet. We should get a better idea of what it is at the upcoming “Powertrain and Battery Day” that Tesla has planned for later this year. Tesla has given us...
  42. B

    Interesting article on new battery technology from IBM

    Free of Heavy Metals, New Battery Design Could Alleviate Environmental Concerns | IBM Research Blog
  43. S

    SKI and LG Chem battery fight threatening US EVs

    Very interesting story about batteries that would be destined for EV manufacturers in the U.S. and how the lawsuit between Korean LG Chem and SK Innovations could spell trouble for EV sales. Feuding South Korean firms risk disrupting electric car battery supplies
  44. TMC Staff

    Both Tesla And CATL Are Considering 'Cell-To-Pack' Manufacturing

    Is this the wave of the future?Until now, battery-pack production has followed the same basic procedure. A company that specializes in making battery cells like Panasonic or LG Chem makes the individual cells and then the automakers take those cells and package them into a battery pack. In other...
  45. J3ThePainless

    SR+ Sudden battery drop

    So I have had my SR+ model 3 for 6 months and have been consistently getting the full 240 miles while going on long trips. I have normally charged to 85% every three days or so without me downloading a new software update. One random day my max charge dropped to 230 with no early drops. any idea...
  46. TMC Staff

    Could Tesla Model 3 Performance Match Taycan’s 24-Hr Endurance Record?

    We use track data, charging data, and some simple math to estimate results. Our preliminary estimate is that the Tesla Model 3 Performance, due to high battery temps, would not be able to charge at 250 kW like the Taycan at the high ambient temps encountered at the Nardo track. Also, the total...
  47. TMC Staff

    Blog Report: Tesla to Partner with LG for Batteries at Gigafactory 3

    Tesla will reportedly contract LG to supply batteries for vehicles built at its Shanghai plant. The deal would diversify Tesla’s battery suppliers, as the company currently sources batteries from Panasonic. Reuters, citing sources close to the deal, reported that Tesla is still likely to...
  48. D

    is this normal

    Hi I have had my model 3 for the last two months, and noticed when I charge I dont get as much charged. for example when I charge to 90 percent I get only 209 mi, I believe b4 I used to get 216. I have the standard range plus . What should I do? is there a way to reset the calibration, should I...
  49. Brando

    JB Straubel - CTO - Chief Technology Officer - talks

    CERAWEEK - Technology Keynote Tesla Reimagines the Century-old Power Grid - JB Straubel JB STRAUBEL - INNOVATION LIKE TESLA @ CO-OP THINK
  50. TMC Staff

    Tesla Sends Software Fix Following Shanghai Model S Fire

    Tesla said a Model S fire in Shanghai was caused by a single battery module. The fire, which broke out in April, attracted international headlines, prompting Tesla to issue an explanation. Additionally, Tesla issued a software update it said will help prevent the failure from occurring in...

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