Model Y E28: Inside the High Voltage Battery, Refinements from the Model 3, and Airbag Deployment

Episode 28: Sandy starts things off with a bang by demonstrating a side curtain airbag deployment, after which we dive into the internals of the High Voltage battery. We examine what changes have been made since the initial Model 3 teardown, discussing examples of lean design methodologies displayed within the battery pack.
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Intro/Outro:
Music from KZbin Audio Library [Aka YAL]
Music provided by RFM: • Video

[@MrGonzonator]

Sandy is warming up to this medium.

[@remo]

Hell yeah. Getting better and better!

[@wileecoyoti]

He's a natural I think. Just getting used to having a camera in his face

[@justinsky9039]

He's getting funnier as he goes

[@thiagoennes]

yeah... warming up like a blast furnace!

[@matiasfisher676]

You all prolly dont care at all but does any of you know of a method to log back into an Instagram account?? I stupidly lost the password. I love any help you can give me

[@emanuel12345678901]

Daaaamn... Sandy being a bad ass again with his visor. That's how he gets all the ladies

[@2nd3rd1st]

Or gentlemen, you don't know

[@tarassu]

Well that's because he is the SUPER-visor.

[@batchint]

Arnis never mind the interview 🤠

[@m0ck0]

next time hes got the visor im gonna get popcorn.

[@thinkabout602]

@@tarassu LOL

[@justinpeterson7246]

Morning coffee has gotten so much better these days Sandy and team. Thank you for the hard work it's greatly appreciated!

[@matyouzbachi9008]

Justin Peterson forst video of the day absolutely 😀

[@Oosh21]

05:55 - engineering can also be explained with: Optimist: Glass is half-full Pessimist: Glass is half-empty Engineer: Glass is twice as big as necessary.

[@MichaelOnines]

Nah, that's just a good factor of safety.

[@Oosh21]

@@MichaelOnines We're not designing a bridge here.

[@MichaelOnines]

@@Oosh21 Of course not! Then we would use 2.5.

[@deth3021]

@@MichaelOnines factor of safety would be a thicker glass... not a bigger glass.

[@MichaelOnines]

@@deth3021 Try telling that to the hydrology engineers. The glass shattering is nowhere near the most common failure mode for spilling liquid from the glass.

[@Zedus-rl9hp]

When Munro has his "fun helmet" on, you know that something extraordinary is happening

[@the.original.throwback]

I worked 42 years in the electric utility industry from reading meters to controlling the grid so electric cars are particularly interesting to me. Your caution and use of PPE around the battery pack is quite appropriate since a mishap can result in a catastrophic energy release faster and much more violent than that airbag explosion. We own a Tesla Model X and I always treat it with the same respect that I would give an internal combustion vehicle with the engine running. Taking notes and waiting for the quiz. Jess

[@markplott4820]

Well, yes Since the Battery Pack is Charged and Energized. you really cant run down a Tesla battery pack , the car keeps 10-15% in Reserve.

[@benjamind7290]

@@markplott4820 Yeah I was a little sad they didn't whallop the heck out of it at least a full charge's worth before tearing it apart. (Earlier reference to getting someone to discharge the battery for them.)

[@markplott4820]

@@benjamind7290 - Again there is no way to Completely Discharge a TESLA battery pack, most you can go down to is 10% then the car Shuts down and Bricks Itself. which is why the Pack is still Dangerous .

[@CessnaPilot99]

@@markplott4820 do you know where you found the source for minimum 10% charge left in the battery? of course that would be non user-accessible charge left but that seems like a significantly high figure. I know running a battery down that last percentage is harmful as well as the last few percentage while charging. I would be surprised if they left 10% percent in

[@stephanweinberger]

@@CessnaPilot99 even if it's just 5%... that's still 3.75kWh which could be released in a very short time - this can easily e.g. weld tools to the contacts and in the worst case cause some molten metal to get in your face...

[@johndavidjudeii]

"Hey boys and girls, now we're back inside to talk about to talk about another explosive topic: batteries." * Flips face shield down *

[@mirkonaumann1417]

Cool video as always. You are a good teacher and entertainer. This series is a MUST SEE for everyone 😉

[@HotBazzinga]

Any morning I get to wake up to Sandy blowing something up means it's going to be a great day! Fantastic video!

[@Scott-sm9nm]

1:35 Re: Black marble -- The Black Marble is a 1980 mystery/romantic comedy film. The title of the film comes from a phrase used by Natalie. The term "black marble" is synonymous to choosing the short straw or having bad luck.

[@TheCapedCoconut]

You can see Sandy is having fun with these. Great work

[@BrianGuitars]

Not an engineer but really enjoying these videos. Sandy is also getting more comfortable infront of the camera.

[@SolvingTheMoneyProblem]

Sandy is on fire.

[@Monkeyheadtpc]

Kinda lost you there when you were describing battery parts but the camera was just wildly panning around instead of showing your hands within the frame.

[@treborsirrah7916]

i asked him to get a proper camera guy a few videos ago ,this one looks like it was filmed by a drone ,i was getting seasick

[@the.original.throwback]

@@treborsirrah7916 Moonlighting engineer doing his best. Be kind.

[@jacob9895]

I had to look back a couple times myself. I think he was pointing out the alternating layout of either the sensors, the thin translucent plastic covering (with two blue-taped seams), or both.

[@sageakporherhe783]

never seen an Airbag go off before. nice.

[@trykozmaksym]

Love the definition of engineering.

[@markplott4820]

Legacy cars = Catalog Engineering, TESLA cars = REAL Engineering.

[@ke6gwf]

As the saying goes, anyone can build a bridge that won't fall down. It takes an engineer to build a bridge that just barely doesn't fall down!

[@Justowner]

@@ke6gwf I checked replies specifically for this comment.

[@accountname1651]

Mark Plott what a stupidity - getting rid of these 2 screws shows how unprofessional Tesla works - if you would have calculated and constructed it properly they haven’t been there in the first place

[@WoodlawnSound]

"Got the black marble" - that's a new one on me! :D

[@ralanham76]

Yes I had to Google it a movie, a reference meaning bad luck

[@shazam6274]

That's because your not a pirate, or read the classic "Treasure Island" by Robert Lewis Stevenson. Arrgh!

[@dezz00002]

I thought it was a reference to the indestructible Monolith of the Space Odyssey series.

[@henrymatthews9365]

That airbag deployment should definitely cause passengers who put their feet on the dash to rethink that decision.

[@MrPhotodoc]

One of the best openings for a KZbin series.

[@smoothfeeder]

Long live Munro!

[@camillebrand2337]

*"Another explosive topic, the batteries."* SHOTS FIRED!

[@jasonbernstein2]

:20 is meme worthy. Instant classic.

[@ralanham76]

I like he steps back.

[@tripv420]

I'd invest

[@yehudagoldberg6400]

Talk about starting off with a bang!

[@supasexystick]

Some assembly guy is sweating right now when you're pointing out the "weight savings"

[@dennisjutzi7075]

I am really glad to be able to start my day with hearing your insights into the model Y construction. Your information is kept to a level which I can understand. That means the average guy gets it. The length is appropriate. Dennis Munro Jutzi.

[@francoischarbonneau9447]

And that's why Sandy always starts his video with " Hello boys and girls" lol

[@TroyDrabek]

I like it when there’s a bang in the video. Definitely appreciate your videos

[@mukamuka0]

Begin with the Bang. Sandy know his audience quite well. 😁

[@miltonmiller]

Watching Sandy's videos is expanding my vocabulary! Today it was "black marble". I had to google it to figure out what was the intended meaning. Thanks Sandy!

[@abogoni]

I'm liking this smashing windows and airbag explosions :)

[@TheClimbingalien]

It seemed when you first started this channel you really didn't like it much. It's great to see you enjoying it more. Watching people who really know what they are talking about is such a privilege so thank you. Maybe you can either make longer videos or more to go into a little more depth? I know everyone here would love that.

[@caoYB]

This old dude is so cool, after watching him everyday, i feel like really learned a lot

[@craftrobot]

Looking forward to a description about battery management... Thanks Sandy!

[@KevinSharpe]

openinverter.org/forum/viewtopic.php?f=10&t=577

[@vitodilascio813]

You were a little late today? 😀 Love this videos. 1 thing, please. When you say this and that and the cameraman doesn't follow where you point... Gets tricky... See you tomorrow Sandy. Keep safe.

[@reeldealev]

I wish more people would tune into this golden nugget of information to the future! Thanks Munro Team

[@Miata822]

If I may make a suggestion to the photographer: I recommend that you pull further back for the majority of the videos. Include Sandy in the shot and any item he is gesturing to. Most often you will see videographers capture an overall scene then come in close to show detail of the item. If you can use any video editing software you could simply insert a still photo of the item at this point. I do appreciate that you guys are working under difficult conditions and making videos is new to you guys. I'm just trying to be helpful, not critical.

[@MunroLive]

Thanks for your feedback. We are always looking to improve!

[@biotikmedia]

6:00 Fairly nice assessment here.

[@Radium3D]

This series is so awesome. Thanks for filming your examination!

[@Raylen_Fa-ield]

Damn, that air back was loud as a gunshot

[@francoischarbonneau9447]

Lol i know, but the sound is covered by crushing steel and glass.

[@thiagoennes]

@@francoischarbonneau9447 oh no you didn't.

[@thiagoennes]

it's pretty much what it is... it's an explosive charge.

[@RoamMeYo]

And it mostly happens behind the interior trim, so its a bit muffled than what we see/hear here.

[@newscoulomb3705]

1:49 Serviceability isn't just about fixing issues from factory; it's also about repairing damage due to accidents and collisions. No one wants to hear that their car was totaled because the battery is not serviceable, and a small part requires the entire battery pack to be replaced.

[@JRP3]

I haven't seen a cashier in weeks. Delivery people are my best friends.

[@JRP3]

@M J Smith No, really? 🤯

[@hawedehre]

The purple so called plastic thing with cable and connector on the battery control module is done by Rosenberger. Nice to see it in its intended place.

[@samr6148]

Very interesting. Thanks for the airbag deployment intro! Fun stuff!

[@quietbydayYT]

Sandy, in an earlier episode (one of the first), I seem to remember you had talked about finding someone who could discharge the battery to make it safer to work on. Did that plan change?

[@seanz6586]

Interesting. Thanks again. Side note. I read somewhere that KZbin’s algorithm is more favorable to videos at least 10 minutes in length. Not sure how true that is but maybe worth looking into.

[@camillebrand2337]

This community and i's local flavor of comment humor is really flourishing.

[@Sellout1738]

Back at it again, featuring Sandy Munro!

[@MichalCieslik]

Another great videos, Thanks Munro!

[@PlanetCypher_]

Tune in same bat time same bat channel ! :D

[@elschumi]

Your videos are highly appreciated! Thank you making the effort to explain this in such detail. Love this stuff.

[@bimmergeezer]

Thanks Sandy, of course I will be back!

[@dancehotelzumba3177]

It's a shame he didn't use a Takata airbag, but then again we wouldn't want Mr. Munro injured. He's performing a valuable service to humanity. Keep up the good work.

[@drdremd]

Sandy is going for the viral video market, who would have thought. Way to go, keep it up.

[@brightymcbrightface]

I think Tesla term for the "electronics bay" is "the Penthouse". I think you're probably seeing a transitional part that will become modular later, but was expedited to get some units out the door. p.s. not an easy shoot for the camera operator! : ) "when in doubt, zoom out!"

[@Pikminiman]

Nicely done, shooting the airbag segment at 60 frames per second.

[@yehudagoldberg6400]

Never thought I'd see a car build with blue painters tape!

[@MunroLive]

Just to clarify, we put the blue painters tape on the Model Y battery pack to highlight where there was previously tape observed on the Model 3 battery. The blue tape (and any other tape) was absent in the as-received condition when we opened it up. Thanks for tuning in!

[@paulhortonatcoxnet]

So that was fun! Bang!

[@blackrockcity]

The missing bolts on the edges of the battery modules... maybe those flanges are needed for a future, more energy dense cell? Cells of a given chemistry get heavier with increased energy density.

[@emkayusa]

As a former Hyundai tech, I have seen airbags go off, several times as a matter of fact. Many garbage cans died for our amusement. After hours at the designated airbag detonation facility of course.....;)

[@xflyingtiger]

Sandy, I'd like to see more on airbags. How they work, why they work, etc.

[@oreganorx7]

surprised there was no slow motion shot of the airbag deploying

[@sjokomelk]

My guess is that most, if not all, the small changes you see here have been on the Model 3 for over a year already. The comparison is made to a first batch Model 3, and they have improved and changed a lot since then.

[@moki123g]

I wonder if that plastic cone at 8:00 is a guide for the robot to aide in locating the nut. It doesn't look like there is any power around that center tie down rail.. ?

[@mjmellock]

Thank you Sandy!

[@brucec954]

So the big question is whether the actual battery cells have changed ie could be rated the same externally but uses less cells - sounds like same as M3 (?). Could also have tweaked chemistry to give longer life but that wouldn't be obvious by looking at. Gets back to what will Battery Day reveal??

[@TheNamsorg]

sure we come back ! great content, great MC ;)

[@wally6193]

The more I see Sandy tearing this Y down and making comments like " I like this " has got me thinking more and more that the Y might be my next car, of course I'd wait a year or two so they can implement some of Sandy's recommended changes. I'll be going from one T company(Toyota/Lexus) to another T company(Tesla).

[@deejay4922]

No one else is sluething this presently I believe. Impressive.

[@benjamind7290]

Is it possible they are constructing the battery pack upside down; electronics bay first into a mold, then attaching the battery cells on top of that, which would explain why the bolts are underneath the bay parts (because they are actually part of the bay, not the cell packs)?

[@bobrichards6696]

Thanks Sandy, take care mate 😷👍

[@officialyasir]

Uncle Sandy is coolest!

[@steensadolin8749]

Have you considered to have a look at a 2020 Model 3 to see if Tesla have implemented some of the “easy” fixes you see on Model Y on the Model 3?

[@Gabriankle]

1:00 I actually chuckled. And he says it so matter-of-fact.

[@ricardol1913]

Another top notch video from Sandy and team. I do wonder how newer Model 3s compare to the original Model 3 that was reviewed. Being that there are lots of Model 3 owners, there my be interest in how the design has evolved. Lots of crashed Model 3s out there that can be used for an analysis.

[@JoshKaufmanstuff]

Camera work was a bit more erratic than usual for this video. Suggestion: before each shot, have Sandy look through the view finder at each part and critique how you frame the shot, this way camera and talent will be on the same 'page'. 👌

[@MunroLive]

Appreciate the advice, Josh. If by viewfinder, you mean the screen of the iPhone 11 we're recording these with, then yes, we can show it to Sandy and see what he thinks ;) Definitely trying to improve as we go. Thanks for tuning in!

[@JoshKaufmanstuff]

@@MunroLive Thanks for considering my suggestion! I never miss an episode, my new favorite channel!

[@JoshKaufmanstuff]

@@MunroLive ah your using an iPhone for the video? I have a better idea! Hand it to Sandy before the shoot and have him take pictures to frame the shot precisely to include the details he wants to show. Then during the shoot, you can go directly to the shots 😀

[@mockmoodylove]

Another exciting episode! Starting it with a bang👍🏿😂

[@ADOENDRA]

In general symmetry will always bring you money . But maybe in the future metal frame for the batt. pack will be made in BMC ,SMC ,bamboo or pressed cardboard.

[@gregeconomeier1476]

Back in the 80's the process of reducing costs in the high rise construction process was called "Value Engineering". Not sure if that term is used these days.

[@tomasFL]

Economan our days it’s called “cutting corners”

[@gregeconomeier1476]

@@tomasFL the architect and engineer of record had a few choice words for it too, but, it was necessary, you couldn't believe some of the stuff that would get specified from time to time.

[@MTerrance]

Value engineering is alive and well. Sometimes it is just finding a less costly component that meets the spec. The real home runs in VE involve finding a different way to do the same thing while meeting the performance spec, which can save far more than parts swaps. The product cheapening we see in many pieces of equipment (eg Harbor Freight) is not value engineering since that often reduces the service life of the item, which should be in the specifications.

[@FrankThorley]

Hi Sandy Would be nice to see a Slow Motion version of the Air Bag. Another Great Video. When you get your CyberTruck, I would love to see it. At 80, it is to late for me to buy one. 😣

[@rubystanziale1817]

You can change the playback speed in the settings Edit - didn't help

[@maxmoq8423]

please keep up on camera model 3 comparaisons, I love to see the improvements and the learning curve tesla made

[@HH-ph3gq]

Would in interesting to see the "Electronics Bay" from the inside

[@MTerrance]

Scares the bejeezus out of me. That is equivalent to opening a full gas tank. One short and it could be bye bye Sandy.

[@Reddylion]

Nice .

[@davidhunternyc1]

Sandy, would you please verify how many moving parts are in the Tesla Model Y? I've read that there are anywhere between 15 - 150 moving parts. In ICE automobiles I've read there are between 10,000 - 60,000. What have you found?

[@markplott4820]

Model Y has a little more Automation than the Model 3. Model Y is Around 25 moving Parts.

[@davidhunternyc1]

@@markplott4820 Mark, thanks again for your input. Do you work with Sandy? How do you get this information? Thanks.

[@markplott4820]

@@davidhunternyc1 - I do NOT work for or With Sandy. but I like Electric cars and I like TESLA cars. I just do my Research , here, there anywhere I can Learn about Electric cars. and According to AAMCO a Typical ICE cars has About 100,000 moving Parts.

[@davidhunternyc1]

@@markplott4820 Ah, so I found something else. I suppose the answer is, it depends what counts as a moving part? I found this: www.quora.com/How-many-moving-parts-does-a-car-have and this: www.quora.com/How-many-moving-parts-does-an-electric-car-have

[@matthewabogado2834]

Many thanks again 😀🙏

[@amantedecapaldi4037]

When sandy sir is seen with a visor "beaware" 😂😂

[@aifredo8491]

I assume that Tesla is currently using exactly the same battery on the Model 3 for now, and the differences that have been found compared from earlier M3, are normal progress.

[@henvan8737]

How many of your staff are working on dismantling this nice vehicle.

[@brentftaylor]

Thanks for another great video!

[@DavidSpiers]

thanks for sharing, got a wee bit confused with the battery sensors/ handed part numbers part, otherwise an excellent video

[@herrvondergei9482]

0:25 my personal "Prince" moment! Thanks for that;-)

[@flyingyakdeath]

To clarify is the lid at the top of the battery pack, hidden between the battery and the vehicle?

[@Robbie6298]

Short Seller FUD: "Breaking news!!! Model Y teardown reveals bolts missing from battery pack" 😂

[@domg7359]

Breaking News: Tesla rationing bolts to extend time before bankwupt!

[@accountname1651]

or Tesla wasted money 💰 instead of hood engineering have only 6 bolts in the first place

[@domg7359]

@@accountname1651 You don't understand engineering, that's not how it works... Also you posted to a comment making fun of FUDsters with FUD. Apparently not too bright.

[@kdel9776]

does the removal of the studs in the "run away module" cause there to be holes for water intrusion into the battery compartment?

[@hedialaya3230]

Came for the battery. Got a demo airbag for free. Can't complain.

[@andrewpintar1620]

Sandy - the series has been absolutely great so far, but the camera work on this one was revolting. So much wobbly footage aimed straight down onto the modules not pointed at anything specific for about 5 mins straight. Made me feel totally sea-sick.

[@isaaclatterell1364]

Hi boys and girls!

[@joethompson9124]

00:20 Daaamn, save some ***** for the rest of us! haha. Thanks for the extra entertainment value, not needed, but appreciated!

[@rocketman3770]

Is this the OSRS Family crest quest from ImSikovit?

[@Buzzhumma]

Great content !👍🏻

[@Jiefyang]

Hahah sandy going full stun man. Love it dude!

[@seanek9]

“They aren’t using these bolts to save money”. Funny how many unused fasteners you can find under the carpet of a new car 😂