Tesla Battery Health Test | Enter Service Mode Yourself | Model Y | Model 3

Check out this video to show your Tesla Battery Degradation. Put your Tesla in service mode at home and run this battery health test. Your tesla app will also say your car is in service mode when you are doing this test or logged into service mode for any reason.
______________
_______________
Waking up the next morning its nearly 7am as you can see the car has completed the battery health test because it no longer says 100% as we are now at 85%. So a little over 50,000 miles my car is telling the battery has degraded 15%. But is this really true… to be honest I’m not sure what this tells me. Looking at my other handle app called Tessie. We can see this states my battery health is at 88.1% with a degradation of 11.9%. So it is pretty close to what the tesla says with a margin of 3% ish error. Comparing my mid-range model 3 to the rest of the fleet shows I’m pretty much in line with everyone else based on my mileage. The chart also shows I’m still in the so-called green area and that my battery is operating normally. Let me know what you guys end up with after doing this test. Is there more information to this batter test that I know of? Again I’m 100% certain of what this result actually means. Also after doing this test please make sure you do not leave your tesla sitting at 100% state of charge unless you have the new LFP battery. Because I did not have time to drive my car anywhere and left the heater on high for a good 40 mins to bring my battery down to 95% before I could drive it later that evening. If you found this video helpful consider dropping a like down below so current and future tesla owners can find this. My name is Evan and until the next video stay safe and I’ll catch you on the next one… bye.

Tesla Battery Health Test | Enter Service Mode Yourself | Model Y | Model 3

[EMtesla]

What were your Battery Health Test Results?

[mmast]

Love it straight to the point a rare occurrence on YouTube

[statonra]

2018 Model 3 LR RWD
76k miles
4 1/2 years old
Results of battery health test: 87%
Miles at 100%: 292

This result seems weird because it implies that when the car was new, it should have had 334 miles range. But it was advertised as 310 miles. A later software update supposedly bumped it to 325 miles, though it only went up to 313 or so for me. Maybe "battery health" is not the same as capacity now / capacity new.

If I calculate based on the current range and the original range, the battery is at 94%, not 87%

During the test there were loud fans at first. The battery discharged at 12% per hour at first, and slowly tapered down the rate of discharge. When it got down to around 7% the fans shut off.

At some point, the battery test spontaneously canceled, and I had to re-start it. That was the only glitch.

After it recharged to 100%, it said the test was still running. It took about another hour for it to finish. The whole test took about 16 hours. I started at 25% SOC. My charger is 48A at 240V.

[henvan]

Just performed my M3 LR health test. After 2 years and 42, 000km my health test returned a 98% score.

[MarkHarnett]

I just went through it. I was bit confused at the end because it appeared to have finished, but didn't show me a %. I was just too early looking at though. It was "resting" at 100%. The percent showed up an hour later. 88% at 55K miles on my 2nd hand Model Y. So pretty good.

[Zeck]

to Authorize hold Fully on Turn stalk (turn signal I assume on left side?) Brake (ok) and Key (what key? like a key card at center console?)

[heyjavey]

15% degradation over 50k miles seems like a lot

[eightbitwhit]

Love your videos Evan - thanks for doing this so we can all know what to expect. 👍

[brianmills]

2019 Model 3 LR, 105, 000, battery health showing 87%. This is likely an objective test of battery health, however I don't think it's as simple as applying 87% to the range when new to establish how many miles you can drive on a full charge. So many factors go into the watts per mile that battery health isn't necessarily going to give the user, or buyer, a clear picture on how many miles a full charge will give them. That's going to depend on vehicle configuration, temperature, and driving habits.

[Civilian_Patriot]

How often do you supercharge it? Sucks you can perform this test when shopping the used market.. wish there was a better and faster way to test this

[MayooN]

I have Model 3 SR+ 2019
Original EPA rating was 386 KM at 100%
I don't drive with Aero covers. Elon said without aero covers we could loose 4% so 371KM
Right now I get 350KM at 100% so I lost about 5.5%
I have stats app which is showing same number as well

[commonsenseyou]

Started the test yesterday at 20%, and now it shows health is 108% on my MY23 LFP and 12, 000mi

[davdizzle]

What was the 3 commands to start the test? Up on the stalk, brake, and take out your key card?

[ntrakstudio]

Your battery is supposed to stabilize degradation around 90% original capacity and they tend to think this is around 100, 000 miles. Given you are at 85% with 50, 000 miles, you may have yourself a defective battery and might want to closely monitor that as you approach the 120, 000 mile warranty

[teslajake]

going to try this on my plaid tonight!

[GWAForUTBE]

INTERESTING. This would be 101 on any EV/ Tesla mechanics course. Apparently this is a 3 month course.

[solarstacks]

So far i started the test at 16% charge since it has tobrun ot down. It stopped at 6% not zero as i expected.
I'm waiting for the charge back to 100% on a 6 kW charger. The fans sure range a lot of the discharge.
Oh we could not lock the door during the service mode checking. I had to park outside because of all the heat and fans running. I can't wait for results. Our model Y only has 17k miles. Had 260 mile range which my wife felt was way to low. 70 and up to 90 here in Phoenix area.

[EwoutSchalkwijk]

Works with my '15 model S as well. Have one error. (PM_w041_dasMIA) So now I know my car is not error free...😲

[dariomazzi]

Hello Evan, video interesting.
How is old your car?
What battery you have? (E3LD?) Panasonic LG ?
Capacity?
Regards

[abandonedaz]

How did you take it out of Service Mode after the test?