Professor Kelly, I have watched many of your videos and have always been impressed with your deliberate and sequenced instructions. And this is the first video that showed you in a wheelchair. You have demonstrated that a disability does not make you disabled. My father had MS for over 40 years and worked for years as a Mechanical Engineer. You are a fine example of a productive member of society!

@WeberAuto

Жыл бұрын

Thank you for your kind words. That means a lot to me.

@fabrisoto

Жыл бұрын

👏🏽👏🏽👏🏽👏🏽👏🏽

@stanhart705

Жыл бұрын

I watched with great interest as 4 months ago I have become confined to a wheel chain late in life. I find inspiration in Professor Kelly. Thank You!

What an asset! If anybody ever deserved an honorary Doctorate, Professor Kelly should be at the top of the list. World standard educator, tireless researcher, open to corrections and criticism, a role-model to treasure.

@WeberAuto

6 жыл бұрын

Thank you very much!

@hawkofthenorth4829

4 жыл бұрын

I am very impressed with the educational value of these videos.

@dewiz9596

4 жыл бұрын

As I’ve mentioned before, I will probably NEVER do this myself. . . but it will be great to “hold my own” in any conversation with those “experts” we always run into. I’d love to see a comparative video on a Tesla battery system. . . i.e., which is easier to assemble and service.

@human_brian

4 жыл бұрын

@@dewiz9596 Tesla batteries are completely glued together in 4 modules typically so you'd have to replace an entire module rather than individual cells like this battery. Otherwise, they aren't too dissimilar. Check out Monroe Live's KZread channel, he's in the process of tearing down a Model Y and has recently showed the battery modules in great detail.

@charlese.mccray7728

3 жыл бұрын

As a young man I was a pretty good mechanic Now, I am a retired crane operator &72 years YOUNG YOU make me look Old 8>)

It is fun to be able to see the design and build details of the Bolt EV battery sections and systems. I appreciate your emphasis on safety. Thank you for taking the time to edit, index and publish the video for all to see.

@WeberAuto

6 жыл бұрын

Thank you very much!

Thank you for the careful instruction. I really enjoyed this and learned a lot. You do these videos at a pace I can follow and understand, which is obviously very important given the many dangers messing around inside these battery systems. Much appreciated!

I have always been fascinated by EV's and can appreciate the fine details that have been presented so expertly. What a great professor and instructor who has that elusive ability to make his subject comprehensible and generates excitement about it through his own passion for the subject which is most clearly apparent. I wish I had more profs like John D Kelly throughout my educational experiences.

Wow. What fun to watch. I'm not an engineer, but it certainly is interesting to see how these things are put together, and Professor Kelly does a superb job of talking and walking us through it. Thank you sir.

I like how you fast forward AFTER you say "Lets get these nuts loose.". The content is at a good pace so information sticks! I honor your work.

I purchased my 2021 Bolt based on your service videos, watched them all. With the battery recall happening I though it important to see this again. I am still very proud of ownership and think this to be an exceptionally well engineered automobile. Zero-scaped my property for water conservation. Giving back as much as I can.

Thank you for your efforts, Professor Kelly. I enjoy watching your videos even though I will never be servicing vehicles myself. I'm mainly interested in the engineering that goes into modern vehicles and these videos have been very educational.

I am so amazed to see your passion despite being seating on wheel chair . You are an inspiration to today's generation . Thank you sir for making such a great video 👍

Worked in testing systems 35 years worldwide for auto this is gold dust thank you Professor Kelly just what we need an in depth tear down of Chevy Battery looks like we may be involved in connections to this beast.....subscribed!

Retired Electronic Engineer here and Mercedes certified mechanic. You sir have serious chops and organize well. Personal thanks for a well done presentation!

Very well done Professor, outstanding attention to detail, fantastic commentary & meticulous craftsmanship. Thanks. Now about the use of shop stools as point load structural members, I would like to see your first order calculations and risk management matrix before you leave the lab this evening...

@WeberAuto

6 жыл бұрын

Thank you! LOL, I put them in the mail for you ;)

@tarstarkusz

3 жыл бұрын

I don't see how this thing can be serviced in the field, especially as it ages.

Prof Kelly - thanks for doing these videos on the latest technology in automobiles. I love your video pace/cadence. It’s great for all of us who are either Bolt EV owners, or those who are curious about the car and tech to see inside this massive component which provides the fuel for EVs. As seen in these videos we certainly wouldn’t be able to take one apart ourselves without significant special tools/hoists, so great that you are in a position to, and are able to show us this stuff. Seeing the engineering that goes into these devices will take away some of the fear that people have with transitioning into an electric car.

@WeberAuto

6 жыл бұрын

Thank you very much! I am happy this in useful for you.

Good to see people teaching battery dissambly, I rebuild Hybrid Batteries for a living & I'm always learning new things. There's going to be a lot of money in this industry these upcoming years. Keep learning!

Great video! Exciting to see how the battery technology was implemented on the Bolt. John Kelly does an excellent job of narrating. His pacing of the dialogue is fast enough to hold my interest and slow enough that it allows me to understand the content. Other educators should take note!

Great video! Three years later and I am seeing many 2017 Bolts that have been wrecked. I am buying one at auction and breaking the pack into a 20kwh pack for my RV and a 40kwh pack for my house. For far less money and much more capacity than a Tesla PW2. Perfect step by step instructions to help me get there faster. Thanks!

@WeberAuto

3 жыл бұрын

Glad I could help. Thanks for watching

The most comprehensive battery pack walk through available anywhere.

Thanks Sir, Manufacturer will charge us heaps of money just to attend the battery disassembly course, yet will not be thorough like you taught, will remember you forever in my life Sir....God bless you.

Absolutely wonderful! My favorite part of the program was the best teaching moment: the battery removal tool. When Prof. Kelly took off battery pack #5, it was off-center. He figured out how to do it correctly after doing it incorrectly at first. It was such a great teaching moment! That truly is how you learn. My second favorite part was when he took the cooling tray off of battery pack # 4 and was showing it to us. When it leaked on him, I laughed right along with him! I would have done it exactly the same way, myself. Haha! And absolutely wonderful teardown of the Bolt battery pack. Thank you so much!

@WeberAuto

Жыл бұрын

Lol. Thank you very much!

Thank you for your time, Professor Kelly, and for your expression of attention to details.

@WeberAuto

5 жыл бұрын

Thank you very much!

This channel deserves more subs and like. The production ang the technical knowledge is Superb

Comprehensive and detailed disassembly of Car battery !! Very much appreciated for this to be shown !!!

You are a very strong man in your devotion and in your will. Our gratitude and respect to you professor.

He's a modern day IronSide, solving these E-mysteries and breaking it down. You get a sub..

@WeberAuto

5 жыл бұрын

LOL, thank you!

Professor John D. Kelly: Thanks for teaching us this video; you are an excellent teacher.

Watching all these Bolt videos again since I recently bought a 2023 Bolt EUV! Thanks Prof.Kelly!

@WeberAuto

Жыл бұрын

My pleasure! Thank you

You can tell John is an excellent teacher, his explanations make you feel smart. These videos are great

@WeberAuto

5 жыл бұрын

Thank you!

Another excellent video! Thanks for all the time you put into this. It’s interesting to see how cleanly designed the pack is.

@WeberAuto

6 жыл бұрын

Thank you very much!

I like the way you do your videos .Well explained and very easy to follow.If only more youtube channels cared as much about the quality of the content.

@WeberAuto

5 жыл бұрын

Thank you!

I am now familiar with the term "Connector Position Assurance Clip". Thank you Prof. Kelly! VERY well done series.

@frankfahrenheit9537

3 жыл бұрын

In German this is just 1 word.

You probably won’t see this but I’d like to say a few things. I’m an Australian sitting at home not quite in the outback, but in the middle of nowhere and your video’s have just come up on my recommendations. I can’t stop watching them. You seem to inspire me. If you were in Australia, I would sign up for whatever you are teaching. I’m currently designing and building a 40 foot electric motor home. Now it’s not something I can buy off the shelf parts for so I’m designing and building as needed when money becomes available. Being self taught EV enthusiast. I would like to thank you for sharing your knowledge and please don’t stop doing it. You have just helped me to stop mulling over my cooling systems design. So thank you again and your students are very lucky. From the land down under

As a 2017 Bolt owner (love the car BTW) and a DIYer who, from a young age, has always marveled at taking things apart to "see what makes them tick," I find the entire Bolt disassembly series truly captivating. I assure you, however, that I will not be taking apart my Bolt. I'm adventurous, but I know my limits!

This was an extremely well done video, detailed, high quality and informative. Thanks!

@WeberAuto

6 жыл бұрын

Thank you!

I’ve been watching from the start of the disassembly process and explanation I find it fascinating that these electric cars have so much technology built into it thank you very much sir and enjoy your program I’m looking forward to more videos from you, from San Diego California much appreciated watching you sir.

As an engineer, I found this video so interesting and informational. Learned new things everyday ..

Another great video Professor Kelly. You make it look easy, look forward to more videos. My 2012 Volt is my work commuter, 15 minutes each way. I’m still getting an average of 35 miles on a charge.

Fantastic video as always.. love the detail you put into your disassembly and reassembly videos.

@WeberAuto

6 жыл бұрын

Thank you!

As naive as I am, anyone watching your video not knowing what your video was about (did see the beginning) tested my patience to sit through it to the end. Very absorbing. My method of disassembling anything is to start at the bottom of the page and work upwards so that assembling in just working downward process. Looking forward to seeing you assembly video and see it you will get it working! Good luck.

Simply an extraordinary video! Prof Kelly my respects to you. I've never watched such professionalism and dedication to teach in a so talented person. Thank you!

I just love watching your video's. Very instructive! Thanks!

@WeberAuto

6 жыл бұрын

Thank you!

Watching you work like this, i realised it's very easy to be schocked by the battery. Basicly only your hands are protected. It's easy to forget about the high voltage and lean against the battery with another part of your body. I saw your bare arms getting close to it a few times. So one of the biggest safety tools is the awareness of what you're doing!

@WeberAuto

6 жыл бұрын

Very true, Thanks for your feedback.

@ClockworksOfGL

6 жыл бұрын

Yes and no. The voltage difference between cells is pretty low, so you can basically grab two, three, four, etc. adjacent cells without worry. But if you reach across the battery and touch opposite positive and negative terminals without protection, your family will be paying for a funeral. Everything is wired in series, so every additional cell adds ~3.65 volts. Don’t quote me on this, but I believe anything above 50 (?) volts is considered “dangerous”. EV batteries are serious business, but they’re not a danger when serviced carefully.

@Diagnosedan

6 жыл бұрын

Bryan Noga, when the bus bars are still connected the batteries are in series. If you touch something like a bus bar you could be in serious trouble.

@ClockworksOfGL

6 жыл бұрын

DiagnoseDan If the service plug is out, there should be no voltage at the bus bars, unless you touch another terminal at the same time, and that will vary depending on the terminal. Of course, if you’re talking about the main positive and negative terminals while the service plug is in, then it’s game over. Since this is KZread (the land of unnecessary flame wars), I just want to say that you’re absolutely right about the need to stay aware when working on EV batteries. I agree 100% on that. But I want to dispel the notion that these things are high voltage death machines. I hear that concern voiced to me all the time when talking about EVs. The voltage differential between cells, wires, and bus bars is quite variable, and often well below the 350.4 volt pack total. Anyway....thank you for responding to my comment!

@Diagnosedan

6 жыл бұрын

Bryan Noga, it's relative new for most techs. But a regular gas tank can be dangerous aswell if not handled with care. Just noticed all the safety procedures and than the bear arms. Seemed strange.

I respect people that know, I respect more people that know and have enthusiasm to show and teach others, but most of all I respect people that don't have problem to admit that they did or said something wrong :D Best regards from Croatia!

Being a Master Electrician for 40 yrs, I have to say this gentleman is really an amazing teacher! I subscibed right away! Keep up the good work!!

@WeberAuto

3 жыл бұрын

Welcome aboard! Thanks for watching

Great video! been waiting on this one! thanks so much.

@WeberAuto

6 жыл бұрын

Thank you!

I'm not gonna lie. I use this channel to fall asleep to. Weapons grade ASMR here

This guy is a legend. So interesting! I just wanted to see what my Bolt's battery looks like before it inevitably blows up.

Subd. Your dive on the motor was great. Glad to see the chair doesn't slow you down. Thanks for sharing

Great content and presentation. Thank you for your time and effort.

@WeberAuto

5 жыл бұрын

Thank you!

I love taking stuff apart !, how I got started as a kid, Dad really didn't like me taking apart the VCR.

@WeberAuto

5 жыл бұрын

LOL, it was fun though. Thanks for your feedback!

Professor John D. Kelly, you are an Incredible teacher..I love how you demystify this EV tech

@WeberAuto

2 жыл бұрын

Wow, thank you!

This man is epitome of a gentleman doesn't let nothing get to him even his handicapped. You inspire me.

@WeberAuto

3 жыл бұрын

Thank you very much

I really appreciate your methodical manner and your logic and accuracy. Super helpful and interesting.

@WeberAuto

6 жыл бұрын

Thank you very much!

i wouldn't have removed that last bracket. Thats why i can only score u 99.99%. What... not ONE profanity? Professor Kelly Sir you are a gem and I look up to you. Peace and Love to you and yours. Mike.

@WeberAuto

5 жыл бұрын

Thank you very much!

Extremely informative. It is important for us to learn about the new EV technologies.

Thank you professor. I found your channel and learned from your footages when I was at the bottom of my career. You and your work inspired me a lot. I am happy to understand the future technology of electric vehicle.

@WeberAuto

5 жыл бұрын

Thank you very much

thank you for this incredible disassembly of the whole Bolt. As EV engineer, I would love, however, to see less bolts undone and more info on battery modules and BMS. I am thinking of getting all of Bolt EV guts and installing it all in to my old Smart Roadster.

@WeberAuto

5 жыл бұрын

Thank you. More information is coming in future videos

Excellent video, as always. Interesting rumor I heard: GM pissed off LG when they announced the cells for the Bolt cost ~$145 kWh. It turns out LG Chem was charging the other manufacturers a whole lot more for the nearly the same thing. I think the economics of EVs are almost as fascinating as the technology. “Experts” have been claiming they’re a decade away from being financially viable, and I think the battery manufacturers are exploiting this idea to gouge carmakers. An executive at Tesla admitted in 2016 their pack costs are already “below” $190, and there’s speculation that the Gigafactory is pumping cells out for

@WeberAuto

6 жыл бұрын

Thank you very much!

@theslimeylimey

5 жыл бұрын

Pack cost per kwh is not the same as cel cost per kwh so that might be a source of confusion in pricing differences.

Does this guy ROCK or what?!?! I am so tempted to take the course they are offering...

As a fellow college instructor, you are an inspiration and I thank you.

Excellent video. BTW, even GM realized how Volt and Bolt names could be confused. So they called it "Bolt EV". Easier than saying "Bolt with a B" 🙂

@WeberAuto

6 жыл бұрын

Thank you! That is a great way to distinguish between them! I will try to use that for now on!

Great job professor!

@WeberAuto

5 жыл бұрын

Thank you!

Thank for teaching about battery dismantling I just love learning about automotive newer technology thanks for the lesson

Hello, It was very informative. , i think we have disassembled everything except battery cell . excellent job sir. thank you so much

Excellent video as always. I noticed that the bottom cover is wider (or deeper) at the front than in the back, as seen by the height of the edges.

@WeberAuto

6 жыл бұрын

Yes, that is true. Thank you!

I feel late to the party. I want to take every class you lead Professor Kelly.

@WeberAuto

5 жыл бұрын

Thank you!

The Bolt has a lot of bolts. We have a 2020. I loved the car before seeing this great video. After seeing it, I love it even more. Thanks.

I watched this video many times - this guy is great and genius. I like the way he explains, he's a real professor

@WeberAuto

3 жыл бұрын

Thank you

Interesting.

@WeberAuto

5 жыл бұрын

Thank you

1:11:30, that gave me quite the laugh. I love when professors bring humor into their teaching

Really enjoyed watching you work- I’d probably be right there workin’ with ya, but my vision isn’t great…. Not to mention, that it would creat an even bigger challenge with us both working from our chairs! Totally loved watching this.👍🏽

Excellent how-to video, explaining the reason for each component (which is what I needed to learn).

@WeberAuto

3 жыл бұрын

Thank you

very interesting, thank you ...

@WeberAuto

6 жыл бұрын

Thank you!

So its about 0130 my time, this video was uploaded about 2 hours ago and it has 224 views. Who are you other 223 weirdos? We should all get together and talk thermodynamics. I'll bring cheese dip.

@kens97sto171

6 жыл бұрын

Kevin Schrage Yes we should.... All us weirdos together. :)

@WeberAuto

6 жыл бұрын

That is awesome!

@peterbustin8604

6 жыл бұрын

Kevin Schrage Can I wear my funny hat ?

@Miata822

6 жыл бұрын

Sorry I missed the party :( Too busy soldering up a new board. What was I thinking??!!

@daviddrake7003

6 жыл бұрын

Kevin Schrage I am a retired ET/Engineer and I love this stuff. I also have a 2016 Bolt and this is fabulous information in my eyes. This is definitely the future of mankind IMHO.

Thanks for another great video, Professor! I do have to mention that each time you pause for a second to make sure you are using exactly the right name for a component I expect you to say "Thing-A-Ma-Jig" or "Doo-Hickey." Those neatly packaged battery sections will be super popular in the aftermarket for those who build DIY EVs and powerwalls once owners get busy driving their Bolts into trees just hard enough to be "uneconomical to repair." Bolt parts are starting to show up on Ebay but no batteries yet. After watching your previous videos I bought a 24V hunk of Gen 1 Volt battery to use at work in our R&D department for testing, um, stuff. It's a wonderful battery. It is a better battery than I can buy retail W/O building my own from cells for many times the price. Thanks again. There really is no other place to get this level of detail. You provide a priceless resource.

@WeberAuto

6 жыл бұрын

Thank you very much! I am glad you were able to obtain a Gen 1 volt battery section for testing. Sounds fun.

Just bought a volt and loved seeing what makes it go. Great video.

@rzu7120

3 жыл бұрын

This is from a BOLT not a Volt

Amazing to think that you will actually be able to reassemble this all again in the future, now the little bags of parts are making sense. I love that you touch the terminals to prove it is safe. I meet so many people who are scared to touch a 12v car battery, I guess they need to watch your videos to understand what is safe and what is not. You mention you fully charged it, but that was outside the Bolt right? Mind sharing what charger/balancer/discharger you use? Also look forward to seeing more about that contactor assembly :-)

@WeberAuto

6 жыл бұрын

Thank you very much! It was fully charged before removing the battery from the Bolt. The charger/balancer/discharger is the Midtronics 5100. Thanks for your feedback!

@raymondramirez9177

6 жыл бұрын

The voltage that can affect a human depends on sensitivity and skin resistance. I am sensitive to any voltage over 35, but I knew old techs that can handle thousands of volts in old vacuum tube TV sets without even a tickle! 12 V is too low to be sensed unless the skin is wetted with a conductive liquid. The high voltage in EVs is enough to harm and maybe kill those that are sensitive enough. Gloves are an absolute needed tool.

1:30:56 these pads are for isolating the heat sink from the metal battery cover so the heat sink hot and cold lines are not connected thermally together via the metal battery cover.

@WeberAuto

5 жыл бұрын

Thank you for your feedback!

Thank you for this video. Excellent work as usual. I LOL’d when you dumped the upper cooling plate’s remaining contents onto yourself. We’ve all done it. If I may, the term you were searching for regarding a collection of cells welded together in parallel is called a cell “group”. A collection of cell groups forms a battery “module”. A collection of modules along with all the other naus is the battery pack.

@WeberAuto

6 жыл бұрын

Thank you, it was certainly a surprise! Thanks for the terminology feedback. Sometimes while shooting a live video I will forget the most basic of terms.

Watched every minute of your fascinating video. As an owner of a 2022 Chevy Bolt EUV it took away a lot of mystery

@WeberAuto

Жыл бұрын

I am glad it was helpful!

So, that's what makes my 2019 pocket rocket fly...

Awesome video! I do wonder if it's possible to disassemble one of the modules and is it possible to even get down to the cell level?

@WeberAuto

6 жыл бұрын

Thank you! Yes, but not without cutting some welded connections. I hope to get a spare section to do that very thing.

I am very impressed with the educational value of these videos. from Hugh in Howth, Ireland.

Finally got a chance to watch this video in it's totality... dude, you're awesome. That was very, very informative & helpful.

@WeberAuto

2 жыл бұрын

Awesome, thank you!

Did you also weigh the pack by any chance. Might be interesting data to have. Another great explanation! Thanks!

@WeberAuto

6 жыл бұрын

Not yet, but I will try. Thanks for your feedback!

@Derpy1969

6 жыл бұрын

I remember seeing the number 960 lbs in press releases when the Bolt was announced or launched.

@BananaMan

6 жыл бұрын

Yes and the dimensions of each pack would be great for me..

@SeanGrahamSean

6 жыл бұрын

www.advantagelithium.com/_resources/pdf/UBS-Article.pdf Has a previous teardown with an emphasis on weight, composition, chemistry, etc. You may find your answers there.

1:11:33 Thanks for the laugh! You handled that well.

@WeberAuto

6 жыл бұрын

Thanks! It was quite a surprise ;)

Impressive video. Can't wait to see the reassembly. I can't wait to check my gm parts catalog tomorrow to see what is serviceable inside that battery pack.

@WeberAuto

6 жыл бұрын

Thank you! Let us know what you find out

If only I had a teacher as good as you! Excellent video!

@WeberAuto

2 жыл бұрын

Thanks! 😃

Note the tools he's using are all insulated

Wohoo. More unBolting.

@WeberAuto

6 жыл бұрын

LOL! Thanks for watching

awesome job done , even in a wheel chair. Very informative, towards my future purchase of a Bolt.

Excellent video with lots of valuable information. Thanks

Very nice work, When do you anticipate putting this battery back together? Would be possible for me to come out to you and witness the reassembly procedure for my youtube channel?

@WeberAuto

6 жыл бұрын

Thank you! I do not know yet. I am waiting to hear from the local Chevrolet dealer about some parts needed for the reassembly. Apparently they are on a restricted parts list. It will probably be mid to late March. My email address in is the video description. Send me an email and we can coordinate. Have a good day.

@ExploringCabinsandMines

3 жыл бұрын

NO !

@TimothyMoore

3 жыл бұрын

@@ExploringCabinsandMines tough guy LOL

@johnsavage6628

3 жыл бұрын

Sir, were you aware that teenagers are making self charging electric go-carts. Or that Troy Reed developed a magnetic motor which requires no battery packs! I don't have $40 grand plus for a car or truck. Even if I did, I wouldn't spend it on a vehicle. GM had the Saturn car company in which they were going to put an electric motor. They didn't do it. Now where are they? The Chinese are eating them alive. And US. It's called greed, and suppressed innovations and inventions.

@derrickkhosa6921

2 жыл бұрын

,

thank you sir love your videos . I'm a gear head and you have been the the best on learning this EV stuff , again thank you

@WeberAuto

3 жыл бұрын

Thank you

Absolutely, it is a wonderful work. Thank you very much for your excellent efforts.

Amazing stuff Prof., I really enjoyed your video and learnt about EV battery. Keep up the good work!

Old timer you are an inspiration to all of us, may God of heaven keep blessing you ad your family always. Keep them videos coming..! God blessed you..! By the way you look 👀 good. Kudos..!..my brother.

@WeberAuto

2 жыл бұрын

Thank you very much

We all get wet greasy doing mechanical stuff God bless A+ video Sir thank you

Thank you for your class Professor ! I love it !

Thank you very much for this instructural video. Since 02292024 i bought a second hand Opel Ampera-e, the equivalent of the chevy and was very curious after the batteriepack. Also in Europe they changed the pack and my 05292020 car was updated to 66kWh. You ended with “i am not a strong man anymore” Well sir, on the contrary, you are a mentally giant! Thanks again, Hans Both, Haarlem, The Netherlands.