78 comments.

  1. opticspipe

    Despite what people are saying, not enough of them have failed to really know. If you search the sub, you can read what people have been quoted for replacements. I can tell you mine at 180k seems just fine.

  2. MildlyConcernedIndiv

    Don't worry about needing a battery replacement for the life of the Model 3.

    I have a 2020 Model 3 with 72k miles on it. A Recurrent analysis shows my battery degradation is 9%. I use about 1/3 of the miles for road trips where I use the Tesla superchargers.

    The measured battery degradation is linear, except for the very first month where it dropped 4% (I expected this - I'm a bit of a battery geek).

    So, the car may be at roughly 18% degradation when the Tesla battery warranty runs out at 120k miles. That will still leave me with 280-ish miles of range, which is more than enough for my usage.

    I expect that there will be suspension parts that need replacing at that point, so any decision to replace the car will probably not involve the state of the battery.

    Edit: the battery warranty is 120k miles, not 140k.

    1. RemarkableMatter

      We have the same model/year. I agree with your assessment. I'll add that people consistently comment on how "new" my interior looks, despite me lugging my grandkids around everywhere with spilled juice, happy meals, french fries and goldfish. All I do is wipe it down with a baby wipes.

    2. BootFlop

      It is unlikely to degrade much over those next 50K miles.

      That’s about when mine plateaued, then it’ll be nigh flat for a long time.

    3. CourseEcstatic6202

      Warranty runs out at 120k, right???

      1. MildlyConcernedIndiv

        You're absolutely correct. Thanks. I'll update my comment.

    4. [deleted]

      unique secretive support agonizing seemly soft overconfident aware placid crush -- mass edited with redact.dev

      1. MildlyConcernedIndiv

        In theory repeated full throttle accelerations would cause more battery degradation as it requires a high current flow.

        I don't know if anybody has done any engineering studies on how much more it degrades.

        I do plenty of launches. I have to experience the 'touch the gas and I'm flying' at least once a week as long as the road is dry and traffic is light.

        1. [deleted]

          straight deserted ossified butter dime squash sulky grandiose subsequent north -- mass edited with redact.dev

      2. TheSirOcelot

        I come from a car background as a hobby. I did nearly all the work on my 2014 Accord before I traded it in for my 19 M3LR. I plan on fixing all I can on Blueberri including the control arms etc. Can’t wait!

  3. inspron2

    When you replace the batteries, choose Duracell.

    1. LinkXander

      But energizer keeps on going and going and going…

      1. Acornpoo

        Big battery marketing winning here

  4. InformalParticular20

    250 miles per charge x 1000 charges = 250000 miles, most likely battery is good for 2-3k charges or more, so 500-750k is a reasonable expectation

    1. stabamole

      I mean functionally maybe, but capacity that would be up to the owner to determine. Lithium ion battery degradation curves usually reach a certain point after which capacity plummets

      1. MildlyConcernedIndiv

        Lithium ion battery degradation curves usually reach a certain point after which capacity plummets

        Do you have any references on this? This hasn't been my experience. I find the degradation is quite linear, after an initial drop of 4% in the first month. I know a few Tesla Model S owners with 140k+ miles that haven't had 'capacity plummets' moment.

        1. stabamole

          https://pubs.rsc.org/en/content/articlehtml/2021/cp/d1cp00359c

          And 140k to me doesn’t sound like the point where I would expect to see that, a 265 mile range model S would put that only at 528 cycles, although I’m sure a little more than that from range reduction over time. Tesla batteries are expected to last somewhere around 1500 cycles even though the warranty doesn’t cover all of that

    2. [deleted]

      See this confuses me. They say it’s best to always leave it plugged in. I plug it in 4-5 times a day (lot of short trips from the house and back) but doesn’t that count as a charge. Should I only charge once a day overnight ?

      1. helloredditworld123

        The commenter said “charge” but he meant “cycle”. A cycle is the full use of the battery 100% - 0%. A battery’s expected life is measured by number of cycles

      2. Sneakysnake514

        Degradation is caused by the electrons running into the atoms as it travels through the layers of the battery. Keeping it at a high charge but not high enough to be volatile(over 80%) and your charging speed/voltage will decrease therefore decreasing the speed of electrons and the chance of a collision.

        aka Your doing the right thing!

      3. InformalParticular20

        No, one charge is 0-100%, so if you charge 30% on a given day that is 30% of a charge.

        1. [deleted]

          absorbed ink fuel chief butter tart slap capable station violet -- mass edited with redact.dev

    3. Wonderful-Pin1649

      elonns states 1500 charges

  5. permabannedcancer

    Bro, that is the cost to replace a chevy bolt battery lol, tesla is much more reasonable. ffs bullshit spreads far and wide.

    1. Bionic_Hamster

      I’m guessing it’s around 14-16k to replace a battery outside of warranty.

      The M3 should be more reasonable than the S which seems to be 20-22k to replace from Tesla.

      Curious how the structural battery pack is going to impact replacement cost moving forward…sounds like it’s going to to be much more involved to try and replace something like that.

      1. InformalParticular20

        Munro pulled and dissected a structural battery pack already, so it still unbolts from the car and can be replaced. However it is the interior floor of the car also, so it carries the seats and console etc, plus it is sealed on the perimeter. So a bit more involved but still very doable

    2. [deleted]

      historical unite paltry scandalous follow numerous payment teeny soup ask -- mass edited with redact.dev

  6. dirkzhang

    2020 MYLR, was wondering the same last week so I did my own little test, turned out I have 69.3 kWh left, compared to 73kwh when it was new. Current odometer reading is 59,118, had put a few good road trips on it, including one from LA to NYC and back, and one from LA to OH one way. Pretty decent I'd say.

  7. Crackerzot

    I know a guy who recently had to replace his Model 3 battery at 150k mi. Caveat: He's an Uber/Lyft driver and supercharges, exclusively. That puts more stress on the battery, over time. Generally speaking, these battery packs should provide good, reliable service for at least 200-300k mi.

    1. opticspipe

      I’m pretty sure the whole point of BMS is to prevent supercharging from significantly affecting battery life. I supercharge a lot and haven’t really seen anything out of the ordinary. I can tell you that my charging sessions spend less time at peak power from the chargers than they used to, causing the sessions to be slightly longer, and that’s the bms doing its job.

    2. WhereCanIFind

      How much did that cost? And how much did their battery degrade?

      1. Crackerzot

        Here's the link to who I was talking about. I think he answers your questions, here. https://youtu.be/4mW1Eb0dz6I

  8. ZetaPower

    Packs made since 2017 are REALLY robust. My best guess: ~15-20 years at LEAST.

    1. [deleted]

      tender boast erect cover pocket rainstorm innate ring compare shame -- mass edited with redact.dev

      1. ZetaPower

        They’re not old enough to have real world numbers. This is a “best guess” based on the degradation graphs circling out there.

        My 2017 MS 100D has lost ~8% in the past 5.5 years…..

  9. [deleted]

    This has been my philosophy. Just picked up my model 3 a couple weeks ago. Not even worried/stressing about battery health. I drive a lot and have to supercharge more than others probably, but is what it is. 8 year warranty is solid and I’ve never owned a car for 8 years anyways.

    1. bucktheking24

      This has been my philosophy. Just picked up my model 3 a couple weeks ago. Not even worried/stressing about battery health. I drive a lot and have to supercharge more than others probably, but is what it is. 8 year warranty is solid and I’ve never owned a car for 8 years anyways.

    2. Mister_TCG

      But I just bought a out of warranty 2015 model s are you saying I’m royally f’ed ?

  10. djao

    Generally, batteries will last 300000 miles or 20 years. It's a complete non-issue. It's like asking how many miles a gasoline engine lasts before major repairs.

    1. -Sofa-King-

      completely different. You cannot say a dodge will last the same as a honda as BOTH are unleaded

      1. djao

        Bet. We're already at 5 years.

      2. Constant-Anteater-58

        Lmao - I was just thinking anything CDJR will fall apart in less that 5 years.

  11. RobDickinson

    Warranty is 8 years

    You'll never need to replace it unless you damage it.

    1. Vecii

      I'm almost out of warranty at 3 years.

    2. Theopneusty

      For the average male it can actually be less depending on your car.

      For the M3LR and M3P they have 120,000 mile warranty.

      The average US male drives 16,550mi/year: that’s 7.25 years to hit warranty

      Average US male 35-54years old drives 18858: 6.36 years

      1. Holiday-Cellist53

        Not so sure I buy that. Think about professional truck drivers, and that 84.3% of them are men. When considering the number of miles driven professional, your sample becomes heavily skewed. However if you consider average civilian Jack & Jill, I would bet their “mileage” probably leans a bit closer to parity. Searching for data is a great step, however synthesizing it is important for it to transform into information. Just friendly advise from your local perennially skeptical Data Scientist.

        1. -Sofa-King-

          we are talking AVERAGE car drivers. MOST men arent truckers. In fact 1.9% are. Your argument is not equivalent.

        2. Theopneusty

          Sure but they make up ~1% of the total population and this isn’t a scientific report or even a new article it’s a simple Reddit comment.

          I also said “can be less”, not that it is for sure less for everyone. I have a few numbers so that people can plug in whatever their actual mileage is to get a clue.

          My main point wasn’t that all male drivers should worry about their warranty but that any reader should consider that their warranty might expire earlier than they thought.

          Me specifically I road trip a lot and travel ~20,000 miles a year so my warranty will expire long before the 8 year mark.

          1. Holiday-Cellist53

            It’s not the percentage of the population that alerts me, it’s the percentage of total miles driven by that small subset (professional drivers) that skews the mileage distribution assumptions. Average truckers can put down +2k miles a week…also not just long-haul trucking where men log miles for professional reasons at a result-skewing level:

            Delivery Drivers 83% Taxi drivers 79% Ride Share 60%

            Not meant as an attack in any way, just find the assumption to be a gap too wide. I’d suggest researching a closer analogue, for example average miles per year on consumer vehicle. Even utilizing your source, I’d use the total average instead (closer to 13k miles per year) to correct for some of that difference.

      2. CarlCarl3

        What other male facts do you have for us?

        1. -Sofa-King-

          why do you care? isnt the issue on one topic?

        2. Theopneusty

          I chose male because the average female drives significantly less in the US so this doesn’t apply to them.

          https://www.fhwa.dot.gov/ohim/onh00/bar8.htm

          1. RobDickinson

            So if we just massage data and ignore half the people...

          2. Theopneusty

            Well no. I said for the average male it can be less. For the average female it isn’t.

            I didn’t say for the average American, that would be ignoring half the data.

      3. [deleted]

        rinse numerous modern gaping snatch pathetic tidy waiting point nutty -- mass edited with redact.dev

        1. Theopneusty

          Check you own mileage to make sure that you know how long you can expect your warranty to last!

    3. [deleted]

      faulty rustic memorize cagey airport edge slimy six reach treatment -- mass edited with redact.dev

      1. RobDickinson

        Well yes..?

        1. [deleted]

          It doesn't die the day yotr warranty is up ffs.

          Anyhow I'm done with you buy a BMW.

          1. RobDickinson

            It doesn't die the day yotr warranty is up ffs.

            Anyhow I'm done with you buy a BMW.

    4. DeuceSevin

      Read your manual. Warranty is not 8 years.

      1. RobDickinson

        https://www.tesla.com/support/vehicle-warranty

        Model 3 Rear-Wheel Drive

        8 years or 100,000 miles, whichever comes first, with minimum 70% retention of Battery capacity over the warranty period.

        Model 3 Long Range/Model 3 Performance

        8 years or 120,000 miles, whichever comes first, with minimum 70% retention of Battery capacity over the warranty period.

        yeah read that warranty...

        1. DeuceSevin

          Then you saw the "or 100,000 miles" and "or 120,000 miles".

  12. [deleted]

    Looks to be about 6 to 10 months, and then the battery generally starts to see issues.

  13. ElectricalAd4682

    I have a model x with 70k and the battery died with no warning. It was fine until it went out. 95% of charging was done at home to 80%. I'm grateful it's being fixed under warranty.

  14. Electrical_Ingenuity

    It will last far longer than the motor in your ice vehicle. Figure 750k for the SR, and 500k for the LR.

  15. limitless__

    Did you really buy a Tesla without knowing the answer to that question? Come on.

  16. Watcherxp

    I'd say 200k

  17. Quitthatgrit

    Where do you even get this nonsense from lol.

    1. [deleted]

      water modern selective silky fade instinctive bake abundant depend marble -- mass edited with redact.dev

    2. [deleted]

      heavy shrill escape innate unwritten rinse north imminent nail dull -- mass edited with redact.dev

  18. midnight_to_midnight

    I recently picked up a '15 Model S that had the rear drive unit replaced in 2018 @ 72k miles, and the battery pack replaced in 2021 @ 139k miles. Take that for what it's worth as it is a Model S, and an older model, so I'm not sure what the differences (if any) in drive units and battery packs. I know the battery pack it was replaced with was different that the one that originally came with the car (both in size, and "generation").

    For the record, I also own a '19 M3P.

  19. [deleted]

    How much to replace on the M3?

    1. [deleted]

      paint public longing lock weather naughty forgetful cooperative voiceless steer -- mass edited with redact.dev

      1. [deleted]

        So steep.. but no one would buy it by the time it's ready for a new battery

  20. Tvp125

    There are a ton on here and YouTube with over 100k without issue.

Add a new comment.