Low Voltage Hybrid and Electric Vehicle Systems

This episode covers Low Voltage Hybrid and Electric Vehicle Systems of Hybrid vehicles.

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Questions:
1. What safety requirements did I forget to include in last week's video on Personal Protective Equipment?
2. What is unique about the hybrid 12-volt batteries shown in the video?
3. Where is the 12-volt battery located on the hybrid vehicle shown in the video?
4. How is the 12-volt battery charged in a hybrid or electric vehicle while driving?
5. How is the 12-volt battery charged in a hybrid or electric vehicle on a workbench?
6. How do you jumpstart a dead 12-volt battery on the hybrid vehicle as shown in the video?
7. Is it okay to jump-start another vehicle from a hybrid or electric vehicle?
8. What is the normal charging system voltage on the hybrid vehicle as shown in the video?
9. Why did the internal combustion engine cycle on and off in the hybrid vehicle as shown in the video?
10. Is the 12-volt system needed for the high voltage system to operate properly on a hybrid vehicle?

[jmccoy]

Mr. Kelley, I've been in the automotive field since 08 when I graduated from U.T.I. I worked at a few Chrysler dodge jeep dealers and took their basic courses on hybrid vehicles, much of which I have forgotten over the years working in independent shops, and hybrids just were not as common as they seem to be getting now. Today I had a 2013 Lexus rx400h get assigned to me for a no start complaint. I searched high and low on all data with no success in gaining any info or description and operation on how the system works and keeps the 12v battery charged, as I didn't just wanna throw a battery in it I wanted to verify the system was operating as designed... and I remembered your videos and this is just what I needed. I can't thank you enough for putting this info on YouTube for Free! I would love to be able to come take your classes in person, but its just to far away for me in Ga.

[NoGasWelcomeAboard]

Professor - 2013 Prius 3 owner since new (251K miles) who does most maintenance DIY. Just finished rebuilding ICE side (head gasket & other “it’s time” parts). This series opens up a whole new understanding of the hybrid side, and possibly another 250k miles 🙂. Thank you!

[..]

I lost your videos for a number of months, I am glad you popped up again and your honesty matches your great teaching skills, thanks for both...

[MarioDallaRiva]

John, I tried the "no ring while working on the car" in the past but the wife wouldn't buy it!

Great video. Thanks for all the time and effort you put into your channel.
Knowledge is addictive.

[xcross]

Hi Professor. Thank you so much for invaluable information. I own 2007 Prius and I have been my own mechanic since 2013 when inverter/converter unit went out. It took dealership 3 hours to troubleshoot it, cost me $318, California rates. Again dealership charge me $500 to replace low voltage battery, and finally $500 to replace burnout HID headlights. It was totally ripoff. Well, that was then. I finally figure out how to work on this vehicle now. Your information is helping filling the caps. Thank you once again for your time.

[jamesfarnham]

I have a 2016 RAV4 Hybrid and I'm loving these videos. I used to do all my own maintenance when I was younger, but I rarely am able to even "converse" with someone about anything to do with my vehicle and feel out of sort anymore. You're educating me at least to the point where I can tell if a "Certified Technician" at the dealership is bull shitting me or not. I'm feeling better already. Thank you for all you do!! Jim.

[josephmcgowan]

This was the most helpful and informative video EVER. I had trouble with my Camry Hybrid, but no more. Thanks so much!!

[MayurShinde]

This video clears a crystal clear idea that Low voltage system has no connection with engine start or stop and it's charging. Even research papers can't explain it so clearly. Thank you.

[JohnClulow]

Thank you so much for these videos. Our 1st Prius was a 2001 hand built in Japan we ordered on the internet. Since then, we've owned 2008 2013 and a 2018 Prime. Your postings have been so helpful in my understanding and appreciation of this astonishing engineering. You are a master teacher.

[prospexican]

i love it, i hate my self for not been watching this training videos, but now im on it.

[Hopeless_and_Forlorn]

I appreciate this series, and I hope I am not wasting anybody's time with a personal comment. In the 1920s my grandfather owned an automotive electrical service business in Wichita Falls, Texas, and also manufactured his own line of automotive batteries. Watching this video, I could not help but wonder what Grandpa might have thought of today's technology and problems, such as not being able to get to a dead battery because it was locked in a trunk that can only be opened electrically. Please keep up the good work--I just bought a 2018 Camry Hybrid and I need all the help I can get in understanding it.

[andrewk]

I am much older than you; grew up with points and condensers. Your videos allow me an accurate, detailed, and intelligent insight into the newest technology. And, as always, a wonderful presentation. Thank you for sharing.

[marcobiundo]

Mr. Kelly, thanks so much for your videos. You just helped me and taught me something from thousands of miles distance

[mohdraza]

Thanks Sir John Kelly, YOU ARE THE BEST!

[TheGibby]

Thank you very much indeed, for making this top quality instruction available to all that are interested. Your willingness to share your expertise in a very down to earth and modest delivery is greatly appreciated. Cheers 👍

[marcygriffin]

Thanks for all the classes you provide to us. I have learned so much about the Prius(new owner)

[medch]

Every second of your video is worth watching

[gaminipalitha]

I gathered lot of information from you which is very usefull and valuable for everyone, who has hybrid vehicle. from srilanka . 🇱🇰 Thank you professor kelly.

[TheDisgruntledMechanic]

Having 2 Chevy Volts I really like these videos and information! thank you. Dc to dc converters just like golf carts.

[mymechanicfriend]

Mannn.... You are the perfect teacher and that's only because of a lack of words. I follow you because of this and because within my strong opinion; Your way might just be the way to teach hounest, seriouse technicians, the right way with comprehending that whih is needed in simple terms how to get this job done the right way, and it sticks. A Big... THANK YOUUUU