Tesla Battery Health Test - Measuring Degradation on my high-mileage Tesla Model 3

[@honestjohn6222]

All secondhand EVs should have this test done to show buyer life of battery still available, it could be a Great selling feature,,,,,,,, or Bad

[@MitoRoshi3586]

I bought a used 2021 and unfortunately show 82%.

[@blueacquisitions7262]

12% for a 2018 with 140k+ miles is great! I just picked up a 2021 MYLR about a week ago with 48k miles and going to run this test. Thank you for the step by step guide.

[@MindofMatter]

@@blueacquisitions7262 let us know how it goes!

[@peteroffpist1621]

yes temperature is a factor to consider

[@SmoothGummi]

The Long Range 310 models were software upgraded to 325. Still a good range after that many miles. I’m at 120,000 and at 100% my car shows 293.

[@MindofMatter]

Great info, thank you

[@TezEV]

Very helpful video, thank you!

[@MindofMatter]

Glad to hear it!

[@rhiantaylor3446]

An excellent result at 39deg F. I don't own a Tesla but the only testing I do in my EV is to attempt the long drives I occasionally need to make and when I find I have more range to spare at the end than I expected - it's all I need to know.

[@MindofMatter]

I want to do a full 100-0 range test one day and see

[@carefulcarpenter]

Interesting video, thanks!

[@jkoonce4244]

Thanks for sharing

[@michaelblue7852]

12% sounds very impressive for 140k miles. My 2019 long range rwd with 48k miles on the clock says it has 224 miles at 80% charge. Doesn't seem very good :(

[@MindofMatter]

I was happy with the result, yeah. Do the test, maybe you can get a free battery before your warranty is up

[@michaelblue7852]

@@MindofMatter Yes i will try it out when i get a charger installed. Just bought the car yesterday :) Edit my tirepressure was at 37-38 psi - changed to 41 psi and 100% soc now says 294 miles. When the weather gets warmer i expect that to change to 300+.

[@hemipowersrt6773]

I believe that percentage is very good, because I just did the test on my 2021 model 3 performance with 18,864 miles. It’s at 90% battery health and I am getting 288 miles at 100% state of charge. 😢😢😢

[@MindofMatter]

@@hemipowersrt6773 That's a decent way to check. That's what I did before I bought my car and knew about service mode. However doing the actual test and service mode would be even more accurate I expect

[@LearnEnglishWithMatta]

This was helpful. Thanks 💪🏽🇺🇸

[@gettingmassive7023]

Thanks for the video! I just started testing our car. I'm curious!

[@MindofMatter]

Let us know how it goes! How many miles on it?

[@driv3rde883]

Turn off your charging schedule for the location you are at. I think my test failed because it could not charge to compete the test

[@TeslaRebuilders]

Do you still have your Model 3 and If so what is your miles and range numbers now? I have a 2018 M3 that has just about the same miles on it as yours did a year ago and its around 280 miles at 100% Not as good but I have been looking a cell group voltage balance and they are really good. Take it easy man, Casey

[@MindofMatter]

I still have it and we have 157,277 miles on it. I'll have to check for the miles and range numbers because my wife drives this now as I have my Lightning. I will let you know

[@TeslaRebuilders]

@@MindofMatter Haha same here my wife took it for work and I had to get the Cybertruck! It's been really awesome so far also.

[@MindofMatter]

That's a really funny coincidence.

[@compasstrans]

How come my 2018 Model X doesn't have a battery health button? I've connected it to 240V charger and disabled all fancy features.

[@MindofMatter]

I'm sorry, I'm not sure at the top of my head. Other model X owners have this?

[@gunaygultekin]

How can we check before buying a second hand car ? What should we do?

[@MindofMatter]

You can enter service mode and do this process before you buy

[@gunaygultekin]

@@MindofMatter but as I check it requires one day to measure it

[@floodtheinbox]

how's everything else holding up on the car? like the interior and suspension and everything, had any issues with it? you do a lot of miles per year, so i'm guessing it's probably a lot of highway and supercharging?

[@MindofMatter]

Its pretty tight overall. Still handles great. Ball joints a little noisy, front door hinges creak worse than any car I have owned and maybe 1-2 very minor creaks on the interior bits. However, I would say it has help up well considering its mileage so nothing unexpected. Still going strong! The TPMS light keeps coming on despite multiple trips to dealer (I have more video of that on my channel). One time it bricked itself in my garage but after a week at Tesla, they couldnt find a problem, it fixed itself while there and the issue hasnt come back in the last 7 months.

[@floodtheinbox]

sweet man. sounds like normal car stuff pretty much. I've got about 8000 miles on mine now. after seeing some reports of cars making up to and past 100k, it was less of a leap of faith for me in terms of confidence that the battery would hold up, but everybody seems to just talk about the battery and i've been curious about how it holds up as a car so i appreciate the response. It's been sitting around 0 degrees here for the past few days and it's honestly one of the best cars i've driven in the winter as far as comfort and convenience goes.@@MindofMatter

[@MindofMatter]

@@floodtheinbox great cars. I'm not a Tesla fan boy but it's a great product

[@SecondSunofficial]

My 2018 model 3 long range woth 34k miles only shows 270 miles at 100 percent. I wonder if its about to hit the warranty barrier

[@MindofMatter]

Keep in mind, this also might be affected by driving style and specific model... 1) do you have a AWD long range? Could that be the right spec for a AWD model? Mine is RWD 2) are you somewhere cold that could affect range 3) Driving style: do you drive it hard all the time, with regen turned down or at very high speeds on the highway?

[@SecondSunofficial]

@@MindofMatter mine is awd

[@MindofMatter]

@@SecondSunofficial well I just checked and the range is actually the same for the all-wheel drive model which is a surprise to me. So yeah you should still have a range of 310 mi but maybe the other factors I listed above are y it does not show that. Try this battery degradation test or did you already? Maybe that will tell you more about the battery health

[@SecondSunofficial]

@MindofMatter I don't have access to a level 2 charger for 24 hours so i cant

[@MindofMatter]

@@SecondSunofficial Oh I see. Not even on PLugshare at a public place perhaps?

[@mohammadhasan6001]

Why my Tesla model 3 2023 milage 2150. Showing charging limitations 268miles while it was 273?

[@MindofMatter]

Very cold or very hot temperatures now? The battery must use its energy to keep the battery and the people inside the car cool or warm depending on the weather. This will affect your range Maybe you drive too fast! You're driving style and driving speed will change the estimated range so maybe you are driving on the highway more or accelerating faster than you did earlier.

[@jpgentleman3490]

I tried this but charging stopped at 4% and it wasn't doing anything at all. It said test has passed. idk... but it wouldnt charge until after a short drive.

[@MindofMatter]

@@jpgentleman3490 you going to try again?

[@usinebob]

What is the current mileage of the car at the time you performed the battery health test?

[@MindofMatter]

Battery health test was performed at 141,829 miles

[@epcalderhead]

The former owner did you a solid in how they treated the battery pack.

[@MindofMatter]

Totally agree.

[@mrmangoguavaguyabano]

Curious to know what percentage of the batteries lifetime spent in supercharger.

[@MindofMatter]

Yeah, me too. I wonder if Tesla saves this data somewhere

[@BigEightiesNewWave]

As a person wanting a used one someday, I would want them to do the 24hr battery health test. I saw a guy with only 7 percent on a Tesla not too old.@@MindofMatter

[@PRO_GLOBAL_DEVELOPING_DIRECTOR]

​@@MindofMatterits in the app

[@1Tymel]

Hey, I just brought a used Too, how to you use the tax credit on a used car?

[@MindofMatter]

Just to be clear, my tax credit was an Illinois tax credit. This is not the USA Federal tax credit for used vehicles. Which one are you talking about?

[@riccoc.6507]

Can you do this test on a model s?

[@MindofMatter]

I thought for sure you would be able to and that all I would have to do is Google this or look on KZbin and find it. However, I have yet to find a video that actually shows a Model S doing the battery degradation test so now I'm not sure

[@marine1718]

I don't have ac outlet to give 6kw can't I do the test anyway? With like 2kw outlet?

[@MindofMatter]

@@marine1718 I don't think it works with 110v. 220v only

[@marine1718]

@@MindofMatter I have 220v

[@MindofMatter]

@@marine1718 not sure how many amps it needs but I bet you can do it then

[@johnsord-xp3ij]

Could you include your supercharger habits?

[@MindofMatter]

Sure, I would be happy to. Maybe I'll even do a video on it one day but here it goes: 1) these cars charge faster at lower states of charge than at higher states of charge, the goal is to get to the supercharger with as low estate of charge as possible so it charges faster while you are there. In other words, you will spend less time charging if you go from say 5% state of charge to 50% state of charge versus arriving at 40% state of charge and charging to 85% state of charge. 2) Even if you know where the supercharger is that you plan on going, selected in the navigation system end let the car know that you are going there. This allows the car to precondition the battery so it's not too hot and not too cold upon arrival and this also speeds up charging speeds. 3) The Tesla navigation system is very good even including charging stop logic. However me being full of myself means I'm convinced I can do it a little better and it may be true. For example, occasionally I see a charging stop scheduled and there is one stall available left for me. Since I hate waiting I look for other options on the navigation system to stop a little earlier or a little later when the charger has more availability and there's less of a risk of me showing up with nowhere to charge. 4) similar to number three, Tesla does a great job in planning your trips but sometimes I do check to see if the charger it has me routed to is a version to or version 3 charger. Version 3 chargers charge significantly faster at 250 kW instead of only 150 kW. If I know or find out that there's a faster charger available as a nearby alternative or could alter my route very slightly without much mental effort I will do so but generally I just follow whatever charger it recommends 5) And then lastly, related to number one but as a conflicting goal with number one, obviously don't let your battery get down too low before you arrive at the charger. 5% is my minimum, 10% makes you feel a little better and I have enough confidence in the Tesla supercharging system that 10% makes me feel safe. 15% is okay but slightly excessive so somewhere in that range I think is a good goal to target when you are planning your next charging stop

[@benjaminscott1240]

3 months on, how’s the car going? Any big repairs?

[@MindofMatter]

TPMS sensor module failed around the time I put on a used set of wheels with different sensors. Not sure if the two were related but that cost only $127 to replace the module. Unfortunately I also have to replace the sensors so another three or $400 for those as well annoyingly. Right now it's being diagnosed for perhaps a faulty battery charger that takes power from the main battery into the 12 volt battery which died over the weekend. I will update you guys but sounds like it's going to be expensive!

[@MikesProjectsandHobbiesMC]

What would you say the percentage of your charging has been SuperCharging vs home charging?

[@MindofMatter]

The Tesla app tracks All of that so I can tell you exactly how much. 59% home, 21% supercharging, 7% at work which is level 2 charging and 13% "other" which But also be level two

[@MikesProjectsandHobbiesMC]

@@MindofMatter I’m at 29% SuperCharging because of free charging but too much of it can’t be good for the battery. Your battery has done pretty darn good at your level of supercharging though. Thanks for the reply.

[@MindofMatter]

@@MikesProjectsandHobbiesMC believe it or not, my car was a turbo rental car. Maybe that helped if renters didn't take it far and just kept it to a single charge trip in the city

[@corbinkoepke4598]

Out of Spec Motoring believes the battery health takes more in account than just degradation.

[@MindofMatter]

Interesting, do you remember what else?

[@corbinkoepke4598]

@@MindofMatter Here’s the specific video I watched, Kyle seems to think that the math doesn’t work for battery health being just degradation. I wish we knew the full details for battery health. kzbin.info/www/bejne/Z5bJgZVvlsZ_aLs

[@BigEightiesNewWave]

I bet Musk is not going to tell you what else it is looking out. If people find out, it could be bad.

[@JoVERICAIN]

This was very helpful. Also, this is why Toyota is very conservative with their batteries. 88% for that mileage is way too low. You lost too many miles for one charge.

[@MindofMatter]

I think Toyota or anyone would be happy to retain 88% battery health after 140,000 miles but that's just me I guess

[@JoVERICAIN]

@@MindofMatter they reach 320000 miles and kept 90%. They guaranteed 70% after 10 years but said if you don't over use the fast charge, you can have 90%.

[@MindofMatter]

@@JoVERICAIN Impressive if that is the norm for vehicles actually owned by customers and not maintained by the company or in a lab. I was impressed by my 88% considering my car got 140k miles in only about 5 years which means there was probably some fast charging in there sometimes.

[@JoVERICAIN]

@@MindofMatter I think your score is impressive if you regularly used the supercharger. What I'm trying to say is as much as possible, charge your car home and your battery will stay healthy even longer. But maybe I was too dramatic on my first comment, and I apologize for this. Your video is very useful and even though the superchargers are part of Tesla's marketing, the best charger is the owner's.

[@MindofMatter]

@@JoVERICAIN Thank you for the advice, you are 100% right!

[@rykemapo]

That math doesn't check out at all. Losing 10% of 300 is 30 miles, not 11.

[@MindofMatter]

I agree the battery health percentage didn't match what the range estimate is. Not sure why.

[@MindofMatter]

I wonder if it has to do with driving style. Maybe I'm easy on the pedal and my trips are usually lower, consistent speed or something

[@jkoonce4244]

Because you're losing 10% of capacity not range .. it's a percentage of what's your kilowatt hours really is not whats claimed,they always have a lot more as a preemptive to battery degradation

[@bikeman123]

Its not a very practical way for buyers of a used car to check.

[@MindofMatter]

Agreed, wish there was a better way. For quick checks, I just take the percentage of SOC and miles of range and multiply to extrapolate what a full battery charge would be. Then I also check the vehicle consumption (wh/mi in the trip menu) and make sure its not getting very low consumption (for example like in ideal conditions going a constant 20 mph for hours on end) and see how that would affect that range estimate I just did,

[@mikeforwarduk]

You can pay to get a remote test done using Altelium. Cost me £60.

[@benkanobe7500]

By my calculation, you have over 94% battery as compared to new. That is less than 6% degradation in 140K miles!

[@MindofMatter]

How do you calculate this? Isn't it 88 percent?

[@benkanobe7500]

@@MindofMatter 199 Miles@100%/210 Miles@100% = 0.947 Such that 199 Miles = 94+% of original range. (@ 100% charge)

[@MindofMatter]

@@benkanobe7500 ah yeah, before the battery degradation test in the cars service mode, that's how I would estimate the battery health. I would assume the service mode degradation test in this video is more accurate than that but that's just an assumption

[@benkanobe7500]

@@MindofMatter The odometer does not lie.

[@MindofMatter]

@@benkanobe7500 I hope you are right since this means my battery has even better range than the battery degradation test shows. Not sure. One day I need to do a driving drain-down test and see how much energy we can extract from it to be sure.

[@jimwood9849]

I suppose this kzbin.info/www/bejne/aHnPqoSvbryFosU video must have been paid for by Tesla also.

[@MindofMatter]

nobody paid me! but there are lots of 300k or more mile teslas out there so if your theory is true, that is quite a conspiracy

[@vivito352]

I don't believe you. This video was probably paid for by Tesla. I read many articles. My Tesla Y. 58k miles. Battery 79%. out of 300 miles that should be. shows 272 miles after charging, but this is not true. If you type into the navigator, go somewhere far away. then it shows until the next charge 170 miles you will arrive at the battery will be 8%. This is how Tesla fooled everyone.😢😢😢

[@compasstrans]

What year is your Tesla?

[@vivito352]

​@@compasstrans 2022, 2 years only. I'm sure everything good you read or watch on the internet about Tesla is funding Tesla. Service is crap, Battery is crap. The assembly is terrible. The warranty conditions are designed for suckers. You will see Tesla going bankrupt in the near future. Because that’s not how business works. People can only be deceived once. Everyone was interested and Tesla won in this. But this won't last long. I'm currently seeking a class action lawsuit.

[@TeslaRebuilders]

You do realize at highways speeds of 70-80 mph it consumes more power than rated range? This is how you don't understand that aerodynamic drag affects all vehicles not just EV's fuel efficiency. You also know that after 170 miles miles you have been driving non stop for almost 3 hours? I guess you didn't need to go to the bathroom or get something to eat, hell maybe take a walk and stretch!

[@vivito352]

​​@@TeslaRebuildersYou seem to have forgotten that I have owned the car for 2 years. and I know how it was when I bought it new. Please don't think that you are the only one who understands physics. In aerodynamics. I used to go to Los Angeles and charge it once. arriving with 20 percent. Now I charge 2 times and come back with 10 percent in the same way two years later. But after your explanation, I realized that the aerodynamics on the planet have changed. And now it’s hard for Tesla to overcome obstacles.

[@TeslaRebuilders]

​@@vivito352 No Dude now your going off Wild, NO I don't know you and you said it had 60k miles. What do you supercharge all the time? Do you charge to 100% and go below 10% often for extended periods? Hell you may even have a HV battery failure or bad cell group! There are all kinds of reasons It could be the way you see it. But you made statements that are just not true and have real world reasons for why the range is that way. Then you go to say Tesla is "Fooling everyone" I guess Every EV manufacture is doing this also then. We can have a civil discussion here if you explain what is really going on rather than just blame Tesla.....