How To Do Tesla's Battery Test | Our battery degraded HOW MUCH after 60K miles?!?!? 🤯 🤯 🤯

[@solarguy4850]

My 2015 Model S is 9 years old, has 210,000 miles, and 90% battery. Keep your battery cool!

[@LockettTech]

DAMN! That's solid.

[@stephaniedo4618]

What have you been doing?

[@inflation1139]

​@@stephaniedo4618not living in Arizona 😂

[@AlanTrades]

Cold temps are worse for it

[@guilleport]

​@@AlanTradesKeep battery cool. Not cold. Greetings 👍

[@ZesPak]

Also remember that the initial loss is higher and degradation actually slows down.

[@beachwood2306]

Thanks for the step by step. My 2019 Model 3 long range all wheel drive at 94000 miles showed 85% in the test.

[@Anthony__420]

My 2018 long range model 3 has 66k miles on it and I’m getting 299 miles at 100%

[@jstar1000]

That is nuts I have a 2019 LR and never get that many its more like 285 on the max side but I think its calculated based on how you drive not so much the battery health. Well both actually but you can have a healthy battery and not get a good range estimate cause you heavy footed.

[@Dinkwadd]

You need to click the 24 hour test if the fans don’t run for 24 hours then you didn’t do it right when you first come to the screen it says 100% every time you need to do it exactly how this guy says

[@creatorex1]

What you state is impossible. Degradation by date aging per year is about 2% in ncm nca batteries first years and about half in lfp ones. To that you have to add usage degradation, so a car with 2,5 years and about 60k kilometers it’s mostly to have about a 7% degradation with good usage and care.

[@jpgentleman3490]

My 2021 SR+ gets an estimated 222 at 100%

[@antoniopalmero4063]

My 2020 LRM3 has covered 131,000miles and shows 272 miles @ 100% . SOH 89% .

[@Birdfeeder795]

Did the health check last night and finished this morning. It’s a 2022 Model Y delivered in march-22 and it has 41092 miles on it. The battery shows 97%. Better than I thought.

[@ikarrangu]

Absolutely going to try this...when my Y gets out of the shop. This stationary brightly painted yellow barrier post came out of no where and swiped my car 😂😢

[@LockettTech]

No way...Curbs do that too!

[@HarryBrielmann]

thanks that is the most trustworthy indicator of battery health I have seen, and compares very well to my case. I just bought my first tesla a week ago 2020 model 3 long range with 48000 miles. Assuming your results are similar to mine since the car is similar, I can expect to lose 10 percent at 50K miles which is about where I am, which means I will lose 32 miles from my original 322 mile range, which is 290 miles. It is in my garage now at 85 percent charge and indicating 254 miles of range. The missing 15% is equal to another 38 miles, which predicts 292 miles which is an excellent match predicting my battery degradation is 10%. Its 40 degrees out so I will not get that in real life, but its good to know. Thanks.

[@veedub447]

For a 2015 Tesla, why not just compare your mileage range at 100% charge when new, which is 240 miles , to a 100% charge now?

[@paxmaniac1]

Because mileage depends on so many factors, like how you drive it or what the road and terrain conditions are. The only way to know, reliably, is by measuring the energy required to fully charge or discharge the battery.

[@aware2action]

The issue with battery degradation with BEV's like Tesla is that, it varies a lot. Just do the same test on an off-rental vehicle, it will not be this good. In essence all NCM chemistry batteries have around 700 cycles, before a 50%? degradation. But in real life, it is much more, if you keep up to charging between 30-70% most of the time, avoid frequent super charging, topup to 90+ SOC only for long trips, avoid discharging to less than 10%, avoid using Sentry mode all the times etc. Also getting close to EPA numbers? need a lot of knowledge on EV energy consumption. So, the best case scenario, is to buy an EV with the biggest battery, while still observing some of the above mentioned charging discipline. Just some 💭

[@teslaafters9133]

No. 700 cycles? That is like 2 years. I have owned for 6 years, 106k miles and have 90% of my capacity left. There is also recent research that supercharging doesn't eat into degradat much at all.

[@judeghazaleh3457]

Does the key have to stay in the car during the test?

[@RB-lt8kt]

It would be good to see a test on a car with same miles but the battery 5 tears old and a car 1 year old with similar miles.

[@buddyotter]

Went from a 265 mile range to a 220 mole range on a MS P85 from 2013 to 2024 with 90000 miles. Charging to 90% daily and SC maybe 2x a year. Compared to my wife's 2013 Nissan Leaf, which couldn't even make a 5 mile journey 10 years later the MS with the worst ever 'A' series pack was amazing.

[@stevenflaton2693]

I’m thinking about picking up a 13 ms p85 with 40,000 miles, I will be checking its degradation, curious what it’ll say, it’s like new and they are asking $20,000. Hoping I’ll be making a good decision on this, first time looking into these

[@kevinjohnston704]

Great video! I have a 2021 and I’m going to do what you suggested 😁

[@miquelTesla]

Can do the test at 15% to have the test drain process be roughly 1.5 hours with the recharge at 7 to 10 hours (there's a 2 to 3 hours where the battery will cool before charging).

[@fatihtekkol1465]

How do you trust tesla software in this case?

[@Oppinnindi]

I mean wouldn’t it make sense for the car to turn all these settings off when you run the test to avoid all this hassle?

[@tonymunoz7400]

I charge at home never use the super charger and my battery health is 100%. I guess it helps I just bought the car 2 weeks again 😂😂😂😂

[@LockettTech]

Lol

[@oj9886]

How much range are you getting on your mode y at 100 percent , I get 302

[@360vroomers]

My question is why do you believe the Tesla health test? If the health test shows less than 70% health then the warranty is triggered. So tesla has an incentive to make its health test more optimistic.

[@Ace987Ace]

That seems like a strange way to test battery capacity. The way I’ve been taught is by charging the batteries to 100% then putting it on a load until the batteries discharge to a certain level. The load and level is published by the manufacturer. When done on a string (multiple battery cells in series) of batteries we measure each cell and the overall voltage. On a Tesla or any other EV, there is no way they are going to measure every battery cell, there are just too many. For example, I’ll be testing a 24V string consisting of 12 batteries each providing 2V . We’ll say the manufacturer tolerance is that the batteries will be at or above 1.75V per cell by the end of the test. This calculates to 21V for the string. Let’s say the manufacturer rates it at 50 amps for 10 hours. If we put a 50 amp load of the string, each cell should read at or above 1.75V and the string at or above 21V. Once the string falls before 21V you stop testing and record the time. If it lasted 9 hours the battery system capacity is 90%. Not sure how the Tesla can truly calculate battery capacity when it starts below 50% charge. Battery voltage is not linear as it discharges. Also, the rate of discharge varies. In the example I gave, a battery lasting 10 hours at 50 amps will not last 5 hours at 100 amps. It will be closer to 4.5 hours. The inverse is true as well, if only providing 25 amps, it will last closer to 24 hours. My guess is that they tested a bunch of batteries, averaged them out, then plug in those battery voltages to represent your batteries. That’s probably the best way to test the battery capacity without knowing exactly how your batteries operate, but that is still not a true test or your batteries.

[@LockettTech]

Great explanation!

[@gregholliday7012]

What did you do to you battery? I had a 2020 model 3 sr+ charged to 90% daily for 4 years. (Just recently totaled in an accident). With only 10% degradation.

[@LockettTech]

How many miles did it have on it?

[@gregholliday7012]

@@LockettTech 140,000

[@HDBnB1]

instead of running the test could you just do the math of what your current max milage is vs how much you should have? So in your case 288/326= 88% Seems like a quick and easy way to get a close estimate

[@jstar1000]

No because it calculates your range based on health and how you drive so its not that accurate more then likely.

[@Jenna_]

This calculation would be inaccurate to determine real world range, and isn't exactly the purpose of a degradation test. Tesla, unlike other EV manufacturers, continues to opt-out of a voluntary reduction in range, and uses the more efficient of the two EPA calculations they have to choose from to come up with that 326mi range figure. The range that a Tesla displays on the dashboard is just that, the EPA equation with the current state of charge taken into account. You could determine a theoretical maximum based on reported battery health, but none of these calculations take into account a persons driving style and/or the environment in which the vehicle is driving around in. Remember, the EPA driving cycle is 55% city, 45% highway, that highway portion is completed at 48mph, and EVs excel in low-speed environments. The degradation test is more to show how the battery has worn given the conditions its been driven in, and gives the current owner and/or prospective buyer an idea of how long that pack will last until its in need of service or replacement. In most modern EVs, degradation tends to slow as time goes on, because the pack allots a more of its nominal (total) capacity for critical vehicle systems and degradation, to minimize the impact it would otherwise have on range. Tesla chose to apportion more of their battery pack to useable capacity for increased range, at the expense of more noticeable degradation as the pack ages.

[@Ralphsearsart]

I am definitely going to try this. I have been concerned that my mileage is too low. My Model 3 2019 long range AWD is getting 370km or 230 miles with 80% charge after only 37,000km or 23,000 miles. Will let you know. I super charged only once

[@MohamedMustafamd]

did you do it? interested in the results

[@nordskov55]

Same keep us updated 👌

[@simonmint3602]

What I learned to get the health of battery information out of the tesla Software, do following: look at your range with 100% and decide through 100 multiplicate with the consumption given of your nominal value (car type model year specific) then you get the kwh battery value with degradation. My M3LR Fremont, 21, 82kwh Tesla: shows on 100% (550km / 100km)*13.6Wh/km = 74.8 kwh means 82kwh -74.8= 7.2kwh degradation is in percent 8,7%

[@darrylnix2582]

My 2018 LRRWD is getting 298 at full SOC currently at 79935 miles.

[@LockettTech]

That’s solid!

[@tmorcos21]

Just a FYI. In California, all battery-operated vehicles are warranted for 10 years and 150000 miles. Good informational video as usual

[@keithferguson6422]

Is this true ? Never heard of it....

[@tmorcos21]

@keithferguson6422 Yes. You can Google battery-operated cars in California

[@LockettTech]

There are actually several states with this law but it doesn’t apply to Tesla and their battery packs. This is for 12V and PHEV’s.

[@practicalguy973]

There are also many ways an EV battery warranty is voided. Water ingress, cooling system and physical damage warranty might not apply. Also when warranty does apply with Tesla you get a re-manufactured battery with similar degradation. The resale value will not be good as these cars age. I think if I owned one I'd be selling and upgrading when the battery still has a couple years of warranty left on it to maximize my financial losses.

[@choongta]

@@tmorcos21 In Tesla app | Specs & Warranty | Warranty tab | Battery Limited Warranty for Model Y, it says 8 years or 120,000 miles, whichever comes first. Never mind Google. Never mind California.

[@kabisayago]

Will it really make noise if doing a battery test?

[@LockettTech]

oh yeah...

[@kabisayago]

I bought it aug 2023 (272mi) , Feb 2024 (265mi). 7mi lost,... odo 11k miles

[@LockettTech]

That’s solid

[@kabisayago]

@@LockettTech really?

[@ronniea.4830]

My 2021 Y battery degraded so much, I charge it to 80% it went down from 275 to 232, I have 56,000 miles on it and I charge it mostly at my home Tesla charger.

[@jstar1000]

That number has very little to do with battery health and almost everything to do with how you drive. It calculates your range based on how you drive. Check your batteries health and I bet you will be surprised.

[@konstantinpatroev8130]

Well you said you have 326 miles of range and on the screen, we saw at 100% charge you have 288 miles. Which is exactly 88% (288/326) as the full 24h test shows. So it is reliable and less cumbersome to just trust the value.

[@Speedsterawesome]

I have a 2022 model 3 Long Range with 102,000 miles on it and the battery health is 82% I get 311 miles on a full charge.

[@primefilmmakers5596]

That quick already? Do you do superfast charging all the time?

[@Speedsterawesome]

@@primefilmmakers5596 it was a Hertz rental so I’m sure it got supercharged constantly. But I have gotten a solid 280 miles on a charge.

[@rarebarney5681]

Hey I'm a new tesla owner. I see you have the tire pressure monitoring system fault. Do you know what that means?

[@archemity]

possibly has aftermarket wheels installed without TPMS installed. I do that to a a lot my cars, I just do a quick visual check of my tires each morning.

[@Kaeohhhh]

I recently bought my model 3 2024 1600 miles and have lost 3-4 miles from 273-269. Had the car not even 6 months yet! Questioning if I should try and get lemon law if this keeps happening. I barely drive

[@D.i.n.i.c.h.t.h.y.s]

isn't this below the expected health? I think there was some huge report lately that showed the average above 90% for 150 or 200k miles cars? did you supercharge a lot?

[@LockettTech]

Our charge stats show about 20% supercharge which I don't feel like is that much but maybe it is.

[@D.i.n.i.c.h.t.h.y.s]

@@LockettTech this should be perfectly fine I guess

[@allenbaylus3378]

12% loss on a 2-year-old car seems slightly higher than what I would expect. But I am not an expert on this.

[@MikesProjectsandHobbiesMC]

@@allenbaylus3378Would be interesting to see how much of the degradation occurred during the first year which is where the most degradation seems to occur.

[@positivityplace]

I have 94% and my car has 82,000 miles

[@AndrewBurtonS-group]

Wow this is a great thing to do before the warranty is up if you have an older car or high mileage.

[@berthogendoorn2133]

I would do a real world test, charge to 100%, drive to 0%, then change display to metric, multiply the watt per km by the number of kilometers and that should give you a better state of health both in range and actual kwh capacity remaining.

[@LockettTech]

Maybe in a future vid. Not so sure about driving it to true 0% though. 🤣

[@paulf3353]

Well, you can't say to Tesla, we did run our cycle degradation test and it showed x amount. They just not going to do anything if you have degradation problem, but if you use their own sw - they will.

[@paulf3353]

Service mode test is also more accurate as you do not stress battery as much as you would during driving

[@englandm17]

Your hand is driving your autofocus crazy. Great shot of the back of your hand. Glad you read all that to us! LOL

[@BogdanKorniyasov]

Mine keeps failing, after 3 times no results. 2018 M3 mid range with 65 kWh pack.

[@miketaivalmaa1530]

2018 m3 AWD 150,000 83% health

[@alijahan8813]

I am also at 140k miles How is your helding up any major electrical or mechanical issues so far Original batteries and motors ?

[@blubandedbandit]

I have a 2018 75S with the newest software. The "Health Test" box does not show up on that HV System page. Please advise

[@bardz0sz]

It’s a subscription based Tesla software, quite expensive too

[@TigerInTheWoods]

Good to know! I have to do it w/ my 3 Tesla - 2 MY LR (2022) and M3(2021). Things to do for me...

[@jstar1000]

I can't mine to get out of the locked mode to run the test for some strange reason.

[@ElMistroFeroz]

My 2017 MS shows 7.8% degradation after 94K miles in tessie app, which is great, but it was at 7.5% degradation just 3 days ago after only 300 miles. I’m either doing something wrong or Tessie readings are arbitrary.

[@B_r_u_c_e]

Thank you.

[@3030hp]

288 divided by 326 = 88%

[@deficator750]

mine just stopped at 10% cause i had scheduled charging on. at 1am i just hopped in and tried to hit the test button it said its initiated but nothing happened. my app shows its parked and no longer in the service mode. Im gonna leave it and try again when i wake up. I hope leaving it at 10% does'nt damage anything

[@JonathanRootD]

My 2021 Model Y with 61k miles is still showing 312 miles at 100%. Originally had 326 miles. Dropped to 318 in the first 10k miles. Dropping very slow since.

[@JohnD0129]

Any notes you can give us. Do you Supercharge ? SOC % etc. 😎

[@jeffufcfanaticrosenberg]

Seeing your trip Watt/hr go up tells you your battery is screwing up right ? so if you Watt/hr are high thats a bad sign ! whats is your nomral trip watt/hr ?

[@berthogendoorn2133]

Also check your account and charging, what is your percentage of supercharger versus level 2 charging, would be nice to know!

[@LockettTech]

23% supercharging

[@thotcontrol8880]

Supercharging everyday doesn’t affect battery health

[@RemoteSpeed007]

@@thotcontrol8880 I would disagree

[@RemoteSpeed007]

@@thotcontrol8880 Sure it does.

[@peperised]

Thanks for this. Seems this approximates the manual calculation of 288miles/326miles=88%.

[@LockettTech]

It seems it’s about 3.26 miles for every 1% SOC is the estimate they are using.

[@henrikbazsant]

Warranty is for capacity, not for SOH. Also SOH is not equal capacity. "8 years or 150,000 miles, whichever comes first, with minimum 70% retention of Battery capacity over the warranty period."

[@LockettTech]

Right, meaning a max degradation of 30%.

[@henrikbazsant]

Yes, this is the meaning, but you measured SOH and not the degradation or capacity. en.wikipedia.org/wiki/State_of_health#:~:text=Typically%2C%20a%20battery%27s%20SoH%20will,will%20be%20less%20than%20100%25.

[@dagame81790]

@@henrikbazsant Is there a way to measure capacity other than to drive it from 100% down to zero?

[@Cofee15]

Wala good job!👏👏👍 Now could you make a video how to check the health of 12V battery on Model 3? For example like how many % used? Thank you !

[@robertyu7341]

It seems like you got the same result off 288 mi on a full charge with just the battery indicator. So you’ve proved that going through the whole battery health diagnostic seems unnecessary.

[@LockettTech]

Tesla mileage predictions are extremely unreliable so to just use that wouldn’t be an accurate prediction of your battery’s health. Percentage will give you the best idea and the test is the only way to see that.

[@patrickshelley09]

​@@LockettTechYou're incorrect. The miles to empty shown on the screen calculates your available battery capacity and divides it by the car's EPA rated watt hours per mile. While it's not a good indicator of how far you can drive, because you're not going to drive the same as the EPA test, it is a fairly accurate way to gauge degradation. The battery health test is unnecessary.

[@TheRoybeasley]

Cant help wondering if the reasons for your earlier failures were simply because you didn't comply with the instruction to *not* interact with the car while the test is running. Every time you check on the status etc (even via the App) you are "interacting" with the car.

[@kalboJeff]

Would this be the same test that a Tesla service station would do to test our batteries?

[@ABsolutely_Channel]

How much % degrad they change free ??

[@DragonSlayer-u5d]

Do you have to be in level 2?

[@LockettTech]

Must be a NEMA 14-50 plug.

[@ryanbumgardner7821]

I tried this test last night and it cycled and drained the battery then charged back up to 100 but doesn’t show a range and says last test was more than 30 days ago still hmm

[@IainEtridge-ux6bv]

Took my car down to 1% , tried to start the test , only accepts state of charge between 15 and 90% ……. Going to be a long day , and resentful as I’m paying to charge it just to immediately have it discharge again

[@tommyduong2225]

Good to know

[@PlayBetterSlots]

Should’ve edited out the first 12 minutes of this video with multiple fails. What a waste of time. It’s a miracle anyone made it thru. This could’ve been a 2 min video with 100x more views but I can literally hear 99.999% of the viewers just turning it off after the first 12 min of fails.

[@Linda-um1tz]

I appreciate the fails. I was practically in tears when I got about 5 fails in a row and couldn't figure out what I was doing wrong. A big relief to know it can happen to a techie, too.

[@Technofiera]

My 2022 lfp m3 is at 95% with 65790 miles

[@myexperimentgardeninginthe8024]

thanks

[@JuanGarcia-gj5fz]

At 56,000 miles, my supercharger module stopped working but I can charge at home on a 120volt.

[@jstar1000]

Is that not covered under warranty?

[@nohchi_k1ant]

My range was 271 miles. After 4k, it's showing 260. I charge my car once a week 🤷🏻‍♂️ Hate that 🤬

[@keithmcdonnell4485]

88% not bad.

[@erictuffelmire6826]

That's horrible... 80% is considered the life of a lithium ion cell because they're basically impossible to balance beyond that. At this rate he needs a new pack by 100k miles.

[@ChipMIK]

5,5% degradation on US made 2021 TM3 LR @ 73.000 Miles.

[@jeffufcfanaticrosenberg]

Tesla needs to get there SHT together and develop a Solid State battery then this whole excercise is MOOT

[@bobtruck1594]

Yep! Wish we knew what Juniper has. I would wait... but the prices are very good right now!

[@ricksteinwand7909]

Sucks to only have 120v, 20a available at home, or I'd run this now.

[@masisoganesyan9048]

If you know an electrician, they can combine two 120 outlets into 240 outlet they can give you about 12 kW output or maybe 11 kW. Also if you have a washer and dryer outlet that should already be at 240 V.

[@masisoganesyan9048]

They sell a device on Amazon that can allow you to combine l two 120 V outlets without help of electrician. Make sure you follow the instructions carefully

[@cyberotter06]

The rouge auto-focus is killing me.

[@JAM_2024]

Battery health is 88%

[@LockettTech]

How many miles on your Tesla?

[@seanstewart4221]

We have 59,000 miles on our 21 Model Y bought in March also. I think I'll just go with your test and assume its about the same lol. @@LockettTech

[@CoachBorne]

I'm at 12% BD too, but I'm only at 40K over 2 yrs. I relied on SC my 1st 3 months till I got Level 2 HC.

[@PECKERWOOD249]

Tesla probably does the same thing apple does to your phone with every update🤣

[@gregb1599]

Earlier Model S had 8 year unlimited mileage battery and drivetrain warranties. Probably changed that because of many battery and drivetrain replacements around that 160,000 mile point as seen in a famous high mileage Tesla Model S that I recall had 3 battery replacements as well as drivetrains with if I remember 400,000 miles

[@billnipp2309]

Doesn't look like your hood was sitting flush. No?

[@LockettTech]

No. We have a gap in our hood. Was always a panel gap plus an issue with an old, now replaced, frunk opening kit made it worse.

[@billnipp2309]

@@LockettTech damn.

[@bobtruck1594]

Seems high!

[@MetalVII]

My 2018 MS90D has almost 90,000 miles and has 9% degradation.

[@cccmmm1234]

This happens to my gas car too. After 60k miles the gas tank has shrunk by 5 gallons

[@bludika]

god....id be furious if my battery degrades after just 4-5 years. I have nothing against EV's but the battery health is what i just don't feel good about

[@latitudeash]

To me that’s a poor result. You reached 12 degradation for a EV that’s 8years old

[@BigEightiesNewWave]

At my 2002 Ford Focus ZX3 miles, that would have 1/2 a battery left, probably a lot less due to age. That car that "saved the planet" would be in a landfill at least a decade before mine, so no, they don't save the planet. IF the battery is recycled, very little is recovered and makes tons of CO2 in energy use to do so. Yes, I researched it. Lithium also uses 1000 gallons of precious water to make enough for a BEV battery. The break even on CO2 with similar-sized ICE car is YEARS down the road. There is no free lunch.

[@andrewjoy7044]

I think you need to do your research again. Batteries are fully recyclable. The biggest problem for firms recycling batteries is they don't have enough batteries as EV batteries in general are lasting much longer than predicted. Lithium does use 1000 gallons of water to produce an EV battery. Once produced they don't use any water. Did you know that in the USA, 3 to 6 gallons of water are needed to produce one gallon of gas. An average American uses 656 gallons of gas per year so that is 1312 to 2624 gallons of water every year. After 10 years that is 13120 to 26240 gallons of water. So as for water usage which is better. Oh, one more thing, a lot of the water used in oil production becomes contaminated. The life span of modern electric cars is unknow to a large extent because they have not been around long enough. There are still Nissan Leafs from 2010 driving around on their original battery packs (Not far I admit). Same with the original Model S' from 2012 after the original battery packs were all replaced due to a fault in the original ones. There are many who believe that modern EVs could last as long as 1 000 000 miles, but since this is 50 years of drivinh for the average American motorist we will have a long wait to find out.

[@health4430]

this is why stick with prius still best

[@LockettTech]

The Prius is something…that’s for sure.

[@health4430]

@@LockettTech prius is much better when it comes to reliability

[@igbatious]

Da gra da shun

[@health4430]

bok tagh zhog dang tagh tagh

[@jeffufcfanaticrosenberg]

cant wait for Solid State BATTERIES to get HERE !!! this is BS

[@shanecaise4158]

Wtf is degragation?

[@mattstanbridge]

So much waffle.

[@NizamiAliyev-s3q]

🤝🫡🎉

[@bigdougscommentary5719]

Click bait

[@LockettTech]

????

[@weswoods7571]

@@LockettTechI feel this was solid info and prepared me for battery testing quite well. Including things that’s would interrupt the test. Definitely not click bait no way

[@Nastja3000]

Why is he wearing a dog leash ?