Charging to 80% all the time

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  • Опубліковано 20 жов 2024

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  • @cliffm8846
    @cliffm8846 Рік тому +12

    Folks, if you like peace of mind about your battery (longevity & safety), for years to come, just charge your EV between 30% - 70% (and do 90% - 100% when going for a long Road Trip).
    (I own Tesla S & X, and I'm an Electrical Engineer)
    * High temperatures kill batteries. If you go on a holiday/vacation during the summer, leave your vehicle at a low SOC (state of charge). For example, at or below 30% SOC
    * Cycle within a narrow SOC range. For example: 40-60% rather than 10-80%. The cathode expands and contracts in a wider SOC range, which causes it to break apart.
    * On that note: The lower the narrower the SOC range, the better. That means charging frequently.
    * Avoid charging the vehicle above 75% SOC. Above 75% side reactions start occuring that cause degradation. This also reduces the volume expansion issues mentioned
    * Taking all variables into account, operating between 45-70% SOC, and storage at ~30% is ideal.
    * Occasional high SOC and wide SOC range are okay! For example, the occasional road trip.
    * With good thermal management hardware and battery management software, supercharging should have minimal negative effects on cycle life
    But even y'all will not follow those tips. The battery will not die tomorrow. it is just that there are some small (or big) consequences later on.
    Have a great day!

    • @marioescalona1640
      @marioescalona1640 10 місяців тому +2

      Also electrical engineer and 100% agree after reading some studies on batteries from lab tests. Depending on how much you drive daily charge to 50-80% (70% ideally) and if possible and charge back every one or 2 days, the lower dept of discharge (DOD) the better, the lower the cell voltage the longer they age (called calendar aging) however the DOD is more influential so try not to go below 20% frequently (30% ideally).

    • @cliffm8846
      @cliffm8846 10 місяців тому

      @@marioescalona1640
      👍

    • @thereplacementfordisplacement
      @thereplacementfordisplacement 3 місяці тому

      Is there actual side by side comparisons for this somewhere in real world? I am buying what you are saying but knowing people who have done this religiously for 10+ years putting on 150kmi or more would give me much more confidence. Seems like short of abusing the battery this minimum standard is doable.
      Probably similarly important to have driving habits that are not extreme like driving full throttle spurts often at low soc.

    • @thereplacementfordisplacement
      @thereplacementfordisplacement 3 місяці тому

      ​@@marioescalona1640I have been debating whether to go more than one day between charges, daily I am between 60-70%, it's just easier to remember to plug in every day. I could probably handle 3 days on my commute if I forgot while doing every 2 days of charging. I really wanted to purchase a plug-in hybrid but there just wasn't anything out there worth it to me. I ended up with a 2024 iD.4 AWD PRO S due to tax rebates and end of June price incentives.

  • @derick5556
    @derick5556 2 роки тому +15

    Just read the Tesla manual and avoid listening to these “experts” from giving you different opinions on how to charge. For daily use, set it to less than 90% charge. Only charge it to 100% if you’re going on a long road trip. And that’s it.

  • @sleepright326
    @sleepright326 Рік тому

    I enjoyed listening to this presentation. Good knowledge of the subject matter. Indepth explanation of all the answers I have been looking for about frequency of charging my Tesla.

  • @Gilgamesh347
    @Gilgamesh347 9 місяців тому

    I’ve been a Tesla owner since 2013, so I have ten years of XP. I charge to 50% and it works for me. I never worry about needing more than 150 miles of range from my 2017 Model 3 on any given day. Once a year, I go for longer drives so I will charge it more, accordingly. Range anxiety was strong in my first year but no longer.

    • @davestechstories8832
      @davestechstories8832  9 місяців тому

      I’m amazed at how many superchargers have opened in the last few years. It really does make traveling easy … and if you’re just around town, charging around half way makes a lot of sense.

  • @bcar1ify
    @bcar1ify 2 роки тому +6

    8 year battery warranty. I will never hit the miles. I will probably get rid of the car at or before 8 years. Why does everyone stress over the battery health. Charge it up and use it. Don’t stress

    • @davestechstories8832
      @davestechstories8832  2 роки тому +1

      Great point. For me it’s about the science of it, and the empirical nature of trying to preserve the battery. And of course to have a little “fun” and seeing how it goes.
      I saw this originally as a 4-year investment, to own and enjoy. But that was in the “before time” and now that I have driven relatively little for two of them, I’m sure it will be longer. But still probably not 8…

    • @clayyu4886
      @clayyu4886 2 роки тому +1

      Because we like to think for the people that purchase our car afterwards. lol

    • @goducgo
      @goducgo 2 роки тому

      Battery would still be cheaper than buying a new car. My Ram 2500 will probably need a trans or engine in its life time and countless dollars in maintenance in between.

  • @phillyphil1513
    @phillyphil1513 3 роки тому +17

    3 words: ABC ("Always Be Charging")

  • @tooflesstesla
    @tooflesstesla 3 роки тому +3

    Do you have any data to show the differences with your charging efficiencies?
    Recently, I did a "road trip" in Hong Kong (I made a video!) and my energy consumption was about 145 Wh/km (about 233 Wh/mile). Like you, I have found my driving efficiency (or energy consumption) has improved over time. I also love regen braking, which definitely helps improve battery efficiency.

    • @davestechstories8832
      @davestechstories8832  3 роки тому +1

      I was tracking this over the course of my first year. I saw that I was around 284 wh/mi early on, then it got better as I drove more and got used to regenerative braking it went down to around 264. But now I’m closer to 230 on any given trip (better on highways of course), taking the average to about 237.

  • @slartybartfarst9737
    @slartybartfarst9737 9 місяців тому

    The way to think of your Lithium Nickle Cobalt battery (Teslas apart from M3 MY Lithium Iron) is as a spring where zero extension is 40% of battery capacity. So moving the spring fast can damage the spring (Supercharging ) or leaving it pulled to 0 or compressed to full 100% can reduce its life, its OK to compress 100% or to extend to 0% just dont leave it sitting there for any extended period. Optimally treat it like a mobile phone and just plug it in every night set max charge to 80% ( i turn down my charge current so I use the full charge time available on the low rate but its all so minimal compared to DC supercharging it makes not a lot of difference, just good practice).
    Batteries like to be at room temp so any time its cold use the preconditioning feature on the app when you can and keep in mind the colder it is take the most care. Teslas really look after themselves and especially in heat they just do it all. 148, 000 miles Tesla Model S P85 looking to get beyond 250,000.

    • @davestechstories8832
      @davestechstories8832  9 місяців тому

      The spring is an interesting metaphor. And thanks for the tip!

    • @slartybartfarst9737
      @slartybartfarst9737 9 місяців тому

      @@davestechstories8832 Its more so like a spring after 20 miles (so battery is primed to absorb energy) if theres a heavy session of regen (compress the spring) the Tesla goes like Stink++ (spring unloading)

  • @goducgo
    @goducgo 2 роки тому

    We charge to 80% drive to 40-50% then charge for 15 minutes. Great time to go to rest room or catch a quick bite. Works for me.

  • @davidnagani9592
    @davidnagani9592 2 роки тому +2

    If you have LFP there's no need to worry

  • @davidchen92127
    @davidchen92127 Рік тому +1

    I got my model Y six weeks ago (9/29/22). So far I have been charging it free at home. Here are my situations. I live in SoCal and I have solar panels and a Tesla Powerwall battery. I set my Y charging limit to 88% (in case of cloudy days). Every morning my Powerwall is recharged to 100% near noon time. Instead of sending surplus solar energy to the grid for pennies. I started charging my Y for a few hours and I turned it off if not fully charged to give enough time for the Powerwall to recharged back to 100% before sunset for night home usage. So far it works perfectly, solar produces about 4.5kW and Powerwall delivers 4kW while charging Y, no or very little draw(0.1kW) from grid. Of course you have to do your own calculations based on your situations. BTW, I am retired, that helps when staying home around lunch time. Get a solar system installed at home! The best thing that I have done in 2022!
    I have NEMA 14-50 outlet at home, it gives 30 miles of range per hour of charging.

    • @davestechstories8832
      @davestechstories8832  Рік тому +1

      Good perspective. Thanks for sharing.
      I will say that in Florida the value proposition isn’t quite the same. State law requires us to pay a fee to the local power company, even if we go solar. And they (essentially) won’t pay for your excess energy, though they will take it.
      …the breakeven point is different for us in general. Though I would encourage anyone reading this to do the math and figure out whether it works in your favor; you may still come out ahead given installation costs and fees to the power company.

  • @OSV92
    @OSV92 3 роки тому +2

    do you think leaving the car plugged in will decrease the stress on the 12V battery?

    • @davestechstories8832
      @davestechstories8832  3 роки тому +6

      I'm going to say yes, I think it does. My understanding is that the car draws non-driving power from the 12v. This would include the display, system functions, updates, etc. I think it also powers the A/C (or at least it is the primary source when it is turned on). It does get recharged when driving, and when plugged in ... so better to leave it plugged in when not in use to help 12v battery health

    • @cliffm8846
      @cliffm8846 Рік тому +3

      DO NOT KEEP ON PLUGGING IT IN!
      TESLA will tell you this and that, as they want your business again after some years.
      The perfect way is to keep you BATTERY CHARGE BETWEEN 30% - 70%,a charge it to 90% - 100% when you’re going for a long Road Trip, period.

  • @teamdriven32
    @teamdriven32 3 роки тому +2

    Great Video!

  • @cecilhanson66
    @cecilhanson66 2 роки тому +1

    Had my Tesla Y for 2 months. Is not a daily driver. Set charge max at
    76%. I leave it plugged in unless driving. I talk with a Tesla Service
    Tech who told me his cousin and uncle both purchased Model 3's. Cousin
    charges to 90% and only plugs in when battery gets down to 10%. Uncle
    charges to 80% and leaves it plugged in when not driving. After 4 years
    uncle had lost 25 miles of battery of battery power. Cousin has not lost
    any battery power miles. Service tech told me this is why you do not
    want to be charging your battery all the time. Tesla manual says to
    leave it plugged in when not driving. Service Tech said to ignore what
    the manual says. What should I do charging wise????

    • @davestechstories8832
      @davestechstories8832  2 роки тому

      This is a whole new word of sorts. I don’t think there’s an easy one-size-fits all (or even most) answer … still.
      Losing the 25 miles is around 10%, and could be based on other factors and possibly (?!) could be overcome in a future software update…
      I have to say, it would be nice to see this repeated with a larger sample size, to get a better sense of whether it matters. Something with a little science behind it would be great.
      Aside: if you head to various Tesla forums and/or look at the results from some of the Tesla apps, you see a wide variety of opinions and only a small difference in the results. It may be mostly anecdotal, but it’s probably meaningful.
      I’ve tried varying techniques, plugged all the time, plugged some of the time, keeping the battery charged between 20%-80% and I haven’t seen much of a difference.
      So my general feeling is to do what works best and easiest for you. At least until we see some scientific results.

    • @cecilhanson66
      @cecilhanson66 2 роки тому

      Dave: Thank you very much for your quick reply and important information. Much appreciated!@@davestechstories8832

  • @chieunguyen5805
    @chieunguyen5805 2 роки тому

    Sounds like an accountant !

  • @ahmedfadul6767
    @ahmedfadul6767 2 роки тому

    Very informative..thanks

  • @shawn2296
    @shawn2296 3 роки тому +2

    so question
    i have a LRD snd my commute is like 10% a day
    do i charge daily or wait till it goes down to 20% to charge
    i dont have a home setup im in an apartment.
    no way of 240 circuit .
    right now, i try to charge daily using public level 2a j1772 to 85%. Am i screwing myself in the long run?

    • @davestechstories8832
      @davestechstories8832  3 роки тому +1

      That’s a good question. The user manual says you should charge when not in use, especially if you’re not driving it for a period of time (and because they bolded that, it suggests that’s the more important criteria)
      You are keeping it charged as much as possible, so that’s a positive thing. The computer will manage the battery so I would assume this isn’t a “bad” habit as long as you are driving it regularly and trying to keep a charge on it.
      [edit] Keep it charged whenever possible. Daily if you can.
      I had a friend who had limited access to public charging and no access to home charging, so he supercharged to about 80% regularly and reported no battery issues.
      [end edit]
      In some ways you want to think of it like a phone, between 20-80% maximizes battery life, so my sense tells me that should be fine.
      But one other thing: System services tend to run off the 12v battery when it’s not plugged in, so that would be the bigger concern. Though probably not a huge one. You’ll want to minimize using the AC and the screen (etc) when you’re between charging.

    • @shawn2296
      @shawn2296 3 роки тому

      @@davestechstories8832 so here is the thing
      i drive it daily some days its over 80 miles some its 40 some days 25 but i drive daily..
      i charge when i can level 2 i only supercharge this 2 a month so far
      (just purchased used )
      my issue is some days i have the car at 70s 60s overnight
      my drive during the day starts 5am and about 30 to work and it sits again
      is this bad?
      i had a work level 2 that i was using every morning but that is down right now so my level 2 is some mall or public L2

    • @davestechstories8832
      @davestechstories8832  3 роки тому +1

      It sucks that it doesn’t function at work. That’s the easiest means to keep it charged - by far!
      Level 2 charging at a mall or whatever is equivalent to charging it at home with a 240v outlet. So if you can easily do that regularly every day, or every other day, you probably will be fine.
      Or if there’s a convenient supercharger along your route, it may be worth it for a faster charge (20 min or so isn’t a deal breaker, and at $.25 per KWH you’d still be under $15 for the convenience). And again every other day or so should work. Just keep it in the 80% range.
      I wouldn’t worry too much, personally. I keep rethinking my strategy; it depends on what I learn, how I feel, how much I drive, etc.
      I don’t think there is any one right or perfect strategy. It’s what works best for you.
      Let the car figure out how to manage the battery efficiently.

    • @davestechstories8832
      @davestechstories8832  3 роки тому +2

      The one thing you don’t want to do is to always charge to 100% and let it run close to 0%.
      It’s okay for a trip or an emergency, but that’s the biggest thing that kills the battery.
      Though I don’t have any first hand experience, you might want to check out one of the handful of health apps out there. They login to your car via an app and let you know how your battery health is going.

    • @shawn2296
      @shawn2296 3 роки тому

      @@davestechstories8832 i charge only to85% when i can
      100 was only done when i purchased the car driving 500 miles

  • @Ej-en2lz
    @Ej-en2lz 9 місяців тому

    How can I get in touch privately. I have a long story (that most people thought I was crazyyy to do) about travelling from central England all the way to southern Spain and back, and would happily get in touch with proof etc, also how good the story is. I am happy to provide this story for you so you can use it as content. I can provide all the proof from Dash cam and photos etc.

    • @davestechstories8832
      @davestechstories8832  9 місяців тому

      Sounds like an intriguing story. You can email me at geezergamer92@gmail.com

  • @acolon8999
    @acolon8999 3 роки тому +8

    Like others pointed out in the comments, Always Be Charging (ABC) or like Elon Musk said "a plugged in Tesla is a happy Tesla". Setting it to 80% (I keep mine at 70%) and keeping plugged in at home like you are doing now is the way to go.
    Also charging has nothing to do with efficiency. Bad charging habits can accelerate battery degradation but that has nothing to do with efficiency. One is capacity, the other is how you use that capacity.
    Tesla did not close a factory, they are opening one in Texas and the plans are to build the Cybertruck and the Model Y initially. So far no plans to build the cheaper model you mentioned.
    The Hyundai issue is a hardware issue that they tried to fix by not allowing the battery packs to fully charge via a software update. Several cars have cought on fire after the update and Hyundai is saying that they are going to replace the affected batteries (made by LG during a specific time frame) but they haven't started the process yet.
    Tesla doesn't get tax credit money (the buyer does), and as of January 2020 Tesla does not qualify for the $7,500 incentive. There is a proposed incentive part of the infrastructure plan that will bring the Federal credit back to all electric cars. If approved this year new Tesla buyers could get 10k tax credit. Other manufactures could get up to $12,500 (there are 3 stipulations, Tesla only hits 2 of those).
    Tesla doesn't buy Emission credits, they sell it to other automakers that can't meet their requirements. These credits are paid by the manufactures not by tax payers.
    Without getting too deep into it before saying that Tesla doesn't make money on the cars they sell do more research. They are investing heavily (building Gygafactories in two continents while expanding in China). It's like if you are selling lemonades and you use all your profits plus some of the money you get on tips to open more lemonade stands. You have to take into account where the expenses are going. It's not that they are not making a profit is that they are investing the profits and then some. By the time other manufactures stop paying Tesla for those credits (credits are a temporary source of income) Tesla is going to have at least 4 factories producing cars around the world.
    This is just constructive criticism. As a UA-camr you should go deep into your research to provide your audience with facts and accurate content.
    Again, just constructive criticism.

    • @davestechstories8832
      @davestechstories8832  3 роки тому

      Fair feedback.
      The one thing I would say in response is that in general, Tesla tends to be a little … secretive? Cagey? Not forthcoming? … With info sometimes as a part of their “culture.” And it’s hard to parse out exactly what’s going on. And media reports complicate it, because they don’t always get it, either.
      Just my two cents on the matter.

    • @acolon8999
      @acolon8999 3 роки тому

      @@davestechstories8832 I agree with you. They don't even have a PR Department and like you said the media makes it more difficult to find the truth. that's why does who are bringing information to their audience should do due diligence and get the facts straight so they don't also become part of those spreading false or misleading information.
      Hope the constructive criticism helps so your channel continues to grow.

    • @ebeyslough
      @ebeyslough 2 роки тому +1

      Great feedback and a whole lot more accurate and in depth than this entire video.

  • @davehanson7960
    @davehanson7960 3 роки тому +3

    tesla is - selling - the credits to other automakers.

    • @davestechstories8832
      @davestechstories8832  3 роки тому +1

      I might have stated it incorrectly. Thanks. Then again, it’s probably a little more nuanced than we know.

  • @troystewart4084
    @troystewart4084 2 роки тому

    UAL MOVING NOW

  • @raymondcole5068
    @raymondcole5068 11 місяців тому

    just save yourself all this trouble by using a gasoline or diesel powered car

  • @sybo10
    @sybo10 2 роки тому +1

    why not set it at 90?

    • @davestechstories8832
      @davestechstories8832  2 роки тому +2

      I’ve gone through several thoughts on this. When I first got my car, I set it to 90% and that seemed fine.
      But after more research, staying at an upper limit of 80% for regular charging should be better for overall battery health.
      Plus, 80% seems to be enough for my daily use. So I keep it there.
      That said, the computer should handle either value, to maximize efficiency and health of the battery.

    • @sybo10
      @sybo10 2 роки тому

      @@davestechstories8832 Thanks

  • @jimburrell9718
    @jimburrell9718 Рік тому

    Tesla makes about 8x as much profit per car than any legacy company or about $10k per car. Ford loses $35k per car. GM etc all lose on EV's so far.

    • @davestechstories8832
      @davestechstories8832  Рік тому

      That’s an interesting point and I believe that it’s pretty accurate … it’s wild how legacy car companies haven’t figured out how to reach profitability

  • @JohnDoe-ut3sz
    @JohnDoe-ut3sz 2 роки тому +3

    im replacing my car every 3 years. this is not a lexus that will live for 15yrs