You are brilliant every aspect. Great Camera man!! Educational video starting from highschool students learning technology all the way to retirement and beyond. THANK you so much.
Hint for removing the cells. Once you have the pack on your workbench, before you remove the tan end-cap and after you're disconnected all the leads (the orange side attachment deal) turn it up on it's end cap and remove the 8mm/phillips on the bottom while the end-cap is still on. That way you can get to all the bolts underneath easily w/o risking dropping any cells b/c the end-cap keeps them all in place. On my battery, cells (from the connection end) 12 and 16 were bad so I just unbolted cells 12-28, laid the pack back down and then took off the end-cap.
the big question is how do you reattach the compression plate to compress the sticks enough so that you can turn the pack on end and re-attach the 8mm bolts to the bottom of the individual sticks?
Thx for taking time to show us, very instructive. I was expected to find out a connection at each stage of the battery for cell balancing. Apparently its not the case with these NiMh battery.
I have a 2015 kia optima hybrid hopefully the schematics are similar thank you very much sir this was very helpful and interesting to learn from instead of paying $1000
Excellent, it has been fantastic to watch your video extremely informative easy to follow and it has allowed me as a layperson to understand how the job can be done.
Reminds me of hot-swapping some hard drives lol Thanks on the clear video unlike most others. But I would recommend using a DC charger and to discharge each cells. Typically the HV batteries don't fail until >=2 cells start to die (from what I gathered). Plus then you can balance load the cells and make it stable (rebuild lasts longer).
Obviously they were tested. Diagnosing the cells in an operating vehicle is faster and more effective than testing them individually. Of course I had to much confidence in someone else's work but this video should really be redone with accurate helpful info.
Ah, a good point at 12:50. Compress the battery so the holes on the bottom line up. Excellent video. Thank you. (edit, 3:20) Did you know that the compression plate is on facing the wrong way? The bottom tension bolts can't tighten that way unless you modify the plastic tabs coming off of the bottom of the plate. Att to viewers.
For everyone, it's pretty good video but if you service the battery you need to clean the corrosion off the copper connecting bars! this batterys sometimes fails only due to corrosion result in a bad connection so ALL WAYS clean the bars! good luck!
Great video and thanks for sharing your knowledge. You have saved me $1000 which is the difference between replacing a cell within the battery pack verses replacing the whole hybrid battery.
Isn't it better to do a load test of the actual cell? Since some cells can measure the correct voltage but have weak power and drop to 6 volts more rapidly than others.
i have problm with my prius that all cell show differnt voltage like that 7.45, 7.37, 7.23 and only one cell show 6.93. please help me which cell i will change? and how can i balance the madule?
Thanks for taking the time to shoot the vedio, haven't done the fix yet but I will do it this weekend, so if the voltage lower than 7 volts it should be replaced.
great work! one thing I noticed that the orange plastic strip ( which is actually harness) has corrosion at one end ( greenish) , did you not replace it. On 1st generation prius I used to replace both side harnesses at the dealership due to corrosion.
Do you know if it is possible to create an additional battery to increase the size of the battery and almost turn the Toyota Prius into an almost electric vehicle?
The way to "properly" test batteries - is UNDER LOAD. The volt meter trick you did will get you the obvious cells to replace. Under load you might have several more.
The battery cells have been separated. no need to do a load test. unlike the batteries which have only a positive terminal and a negative terminal, these are cells that cannot be tested separately. thats where you do a load test on a battery. you cannot do a load test within a cell. A cell that cannot carry a load up to its required voltage is deemed a bad cell.
eventually everything dies including us... (but better to keep the original part as long as possible.:))...as long as a battery pack is relativity well balanced it wasteful to throw away cells with plenty of life...and it worth a trying to bring back cells with voltage drop back to life too as back up when the next cell fails...
What make and model are the individual cells? I have a 2010 Lexus RX450h which I believe uses a Panasonic Battery, do they use the same calls? and where can they be ordered from?
My hybrid battery failed yesterday. I called Toyota of America this morning. They took all my info and said that they didn't sell any parts at their headquarter and referred me to contact the local Toyota dealers directly. I did speak to the dealer b4 calling them and wad told 5k for a new pack. Please advise. Thank you.
THANK YOU FOR YOUR VIDEO IS WHAT CAN YOU TELL ME BLOCK 9, BEGINNING TO COUNT FROM ECU (COMPUTER OR DRIVER SIDE TO PASSENGER OR THE CONTRARY, IT OR THE POSITION OF BLOCK 9? THANK YOU
Jzk brother I will change my soon. My scanner say code P0A80 replace battery pack, along with p0319 block 9 weak, and p0320 block 10 is weak. Replacing the cells which are bad will work?
There are many factors in battery reconditioning. One resource I found which successfully combines these is the Magic Mender Wizard (check it out on google) definately the no.1 info i've seen. look at this unbelievable resource.
Interesting video (was expecting that) But i couldn't stop thinking: Touching a charged HV battery (even with disconnected elements) like a maniac, without gloves, by a water puddle. What can go wrong ? Remembered my younger days when i was adjusting HV and Focus on powered-on CRT monitors (just a 15 kV voltage for the the tube grid - you quickly learn to not be so touchy touchy with live hardware) :D
Hi Iman Did you have to balance the units? How is your battery performing now? Did you have any problem since you have changed the cell? My gen2 battery didn’t show the dead signs yet, but time to time suddenly battery level drops fron 6/bar 3 bar and takes ages to recharge. is this a sign of nearly dead battery? Should I make attempt to replace the cell? Or should I wait? Any suggestions please. Thanks
I know just enough to be dangerous, What u described is most likely due to 1 or more of the cells being out of balance ie starting to go bad and causing more resistance. Replacing bad cells will help the other cells last longer since they will to be easier to balance. And even be more efficient since the BMS has to drain off energy to keep cells in balance when cells r dying. But it not easy, so its up u to determine when it worth the effort. And changing each cell individually is most effective for an older battery pack since BMS r never perfect, Hope this helped more than just being confusing,
Each cell needs to be load tested to find the bad one. I just attach a 12 headlight and time the cell with a load on it for 2 minutes with a multi meter.
Mike T I think he means measuring a battery when it is floating no-load doesn’t give a valid measurement. Because even a weak battery may measure good in that case. But if you put an electric load on the battery ( give it some work to do ) by attaching a light bulb - then the battery voltage measured is valid / useful.
For how long you suggest to put a 12 volts bulb for checking the battery? I started the procedure and giving 6 minutes to each cell with reading before after and again after six minutes. Just want to know what if I connect three 12 volts bulb in parallel in order to save time?
Dr Shakir, I don’t know the Prius battery specifically to give an exact answer. But I will say, in general, that the more current is drawn then the heavier the load placed on the battery. Yes the load would be increased with more bulbs in parallel. It would also be increased if the wattage of the bulb where higher but it’s voltage were the same ( Watts = Volts * Current ). Having said all that, I think your current method is fine because the voltage measured is not a float voltage because you have a load attached. How do the voltage readings compare between the first and second readings? ( Also no need to keep a heavy load on the battery for too long - as doings so could be stressful to the battery. )
Hello, do you know how to count the blocks? I got block 12 weak but is it from the battery and away or from the other side towards the battery help please!
i to just bought a 2011 chevy silverado hybrid and i have a code P0BBD (hybrid battery pack voltage variation exceeded limit) Not sure if it means to replace the entire pack or i can do this and replace the ones that are bad, hopefully its just one i need to change. I also have AP0AC4 code (hybrid pwertrain ctrl mod requested) not really sure what that is but im hoping your informative video helps me fix my truck. thank you sir
As others have said... thank you for sharing your experiences of how to go about this repair project ..great!
You are brilliant every aspect. Great Camera man!! Educational video starting from highschool students learning technology all the way to retirement and beyond. THANK you so much.
Brilliant guide. So many people replace the full battery pack on their Prius' when it's not needed.
Thanks for sharing your experience. It will assist me if/when I need to work on the battery of my wife's Prius.
Hint for removing the cells. Once you have the pack on your workbench, before you remove the tan end-cap and after you're disconnected all the leads (the orange side attachment deal) turn it up on it's end cap and remove the 8mm/phillips on the bottom while the end-cap is still on. That way you can get to all the bolts underneath easily w/o risking dropping any cells b/c the end-cap keeps them all in place. On my battery, cells (from the connection end) 12 and 16 were bad so I just unbolted cells 12-28, laid the pack back down and then took off the end-cap.
the big question is how do you reattach the compression plate to compress the sticks enough so that you can turn the pack on end and re-attach the 8mm bolts to the bottom of the individual sticks?
thx, I was wondering if it could be done that way...once the nuts on the compression plate were loosened...
Thad Williams Make A Video?
Thx for taking time to show us, very instructive. I was expected to find out a connection at each stage of the battery for cell balancing. Apparently its not the case with these NiMh battery.
Well done. Pretty helpful info and i just get to know the looks of the hybrid battery. thank you so much.
Doing mine right now. Picked up a 2004 Prius that needed the HV battery replaced for 1500 bucks. Great video! Very informative.
Did this work for you?
Anavı sikim memede oyret
Fantastic explanation and very informative thanks
I have a 2015 kia optima hybrid hopefully the schematics are similar thank you very much sir this was very helpful and interesting to learn from instead of paying $1000
Excellent, it has been fantastic to watch your video extremely informative easy to follow and it has allowed me as a layperson to understand how the job can be done.
Reminds me of hot-swapping some hard drives lol
Thanks on the clear video unlike most others. But I would recommend using a DC charger and to discharge each cells. Typically the HV batteries don't fail until >=2 cells start to die (from what I gathered). Plus then you can balance load the cells and make it stable (rebuild lasts longer).
how do we do that can u explain detail cuz i am going to do it this week
is this a good idea to change bad cell or change complete battery? Thanks for last video.
It's good because one cell with 6 pcs 1.2v cells in series. and from this package there is one 1.2v cell, in a way, in Oikari.@@muhammadumair1836
You're counting the modules backwards. Thanks for helping me waste a few hours of work.
Yeah, well if you would have actually tested the cells ...
Obviously they were tested. Diagnosing the cells in an operating vehicle is faster and more effective than testing them individually. Of course I had to much confidence in someone else's work but this video should really be redone with accurate helpful info.
Great Job Mr. Mosleh ..Thank you so much
Ah, a good point at 12:50. Compress the battery so the holes on the bottom line up. Excellent video. Thank you. (edit, 3:20) Did you know that the compression plate is on facing the wrong way? The bottom tension bolts can't tighten that way unless you modify the plastic tabs coming off of the bottom of the plate. Att to viewers.
Great video and good explanation. Thank you.
Thanks for your help I’m doing this today!
Very Interesting and professionally compiled.
Thank you for the great video. I have a 2009 Prius, hopefully won't have to do this while I have this car, but very helpful knowing it can be done.
Mark Williams mines just went out.. 05 @173,000 was a good run if you ask me
Nice and very informative video. Thank you for sharing!
Awesome video man. I’m going to do it soon and thank you for giving me a reference
did you do it?
Thank you made it look so easy
Great video & camera work tks
Thank you the lesson/walk through appreciate it
Excellent education. Thank you so much.
Excellent video! Good details!
Thank Imam, great video, can you list the tools and sizes that would be a great help. Keep up the good job, thank you for the good video again.
Excellent job man! Stay young ....
For everyone, it's pretty good video but if you service the battery you need to clean the corrosion off the copper connecting bars! this batterys sometimes fails only due to corrosion result in a bad connection so ALL WAYS clean the bars! good luck!
louie whinthorpe what do you mean clean the bars? The terminals? Or the cells?
Great job my friend 👍🏻
Thanks for clearing up the mystery. Now that I see your video, these are pretty straightforward.
Thanks for a really great explanation.
Your video very clearly. Thanks for show us
Thanks for posting 👍
very professional, good job.
In the future, we will be looking at this battery pack technology and laughing about how overcomplicated and inefficient it is.
Great video and thanks for sharing your knowledge. You have saved me $1000 which is the difference between replacing a cell within the battery pack verses replacing the whole hybrid battery.
It is my pleasure to hear that!
Hey Chris did you end up changing the battery cell
@@jonathanespana2101 OMG yes! In fact I have done it 5 separate times on two different prius!!!
Yes sir......so clearly.....save you 1 keep to see if my prius have this problem will check again
ابدعت صديقي
Isn't it better to do a load test of the actual cell? Since some cells can measure the correct voltage but have weak power and drop to 6 volts more rapidly than others.
I have heard of this. Some use a light bulb to drain some power then see. ?
Very useful, thank you very much brother
Great video. I will save money with your video 😊
Thanks.... Great video, showing the steps.
Good job.
I would change them all since they are at end of useful life....do not want to keep changing a one cell at time
Cool video bro.thanks
Very good! I replaced 1 cell for $40
Thanks for the walk thru
Thank you very much for your good video !
Good job explaining
Thank you, my battery stared burning today so i hope to fixit later when i found the main Fault ;)
i have problm with my prius that all cell show differnt voltage like that 7.45, 7.37, 7.23 and only one cell show 6.93. please help me which cell i will change? and how can i balance the madule?
Recondition each cell
Hi bro your demo is nice. I recom that next time please have a mic so that your voice stable.
Nice job!
Great Video. Thank you
دست شما درد نكنه اقا ايمان
Thanks for taking the time to shoot the vedio, haven't done the fix yet but I will do it this weekend, so if the voltage lower than 7 volts it should be replaced.
Yes you should. basically check the voltages exactly like what I did in this video to make sure all of'em are in a same range.
Sal J did you replace yours? If so, how did it go
Hey salwan did you end up replacing the battery
I hope I will never have to do this but it's interesting to know how to do it.
I hope
:)
Cyril Bouché own a pruis forever you'll have this problem
great work! one thing I noticed that the orange plastic strip ( which is actually harness) has corrosion at one end ( greenish) , did you not replace it. On 1st generation prius I used to replace both side harnesses at the dealership due to corrosion.
Awesome vid.
You need to clean those brass connectors and clean the hybrid fan
tks for the video
Thanks for the video! Hows the Hybrid battery performing now? Thank you
Yes it looks very easy! Thank you Iman!! Ill spread the word!
Thank you, great job! Removing all the Fasteners beforehand makes for good pacing. Just what I needed to see and good explanations.
Do you know if it is possible to create an additional battery to increase the size of the battery and almost turn the Toyota Prius into an almost electric vehicle?
perfect video thank you.
thanks for helpful video
Great video
Great job
Do you need to rest or program anything once you replace it?
The way to "properly" test batteries - is UNDER LOAD. The volt meter trick you did will get you the obvious cells to replace. Under load you might have several more.
jim davidson just change all the cells , eventually your going to have to later on
true that
The battery cells have been separated. no need to do a load test. unlike the batteries which have only a positive terminal and a negative terminal, these are cells that cannot be tested separately. thats where you do a load test on a battery. you cannot do a load test within a cell. A cell that cannot carry a load up to its required voltage is deemed a bad cell.
eventually everything dies including us... (but better to keep the original part as long as possible.:))...as long as a battery pack is relativity well balanced it wasteful to throw away cells with plenty of life...and it worth a trying to bring back cells with voltage drop back to life too as back up when the next cell fails...
Could you just test each of them with a battery tester?
Good job!
What should be the lowest voltage each cell should read to determine if they are good?
question if the one cell go bad is there chances of other cells goes bad too soon or not to worry?
excellent video
What make and model are the individual cells? I have a 2010 Lexus RX450h which I believe uses a Panasonic Battery, do they use the same calls? and where can they be ordered from?
I heard that replacing one or two cells only fixes things for a year or so. is that true?
Thank you
My hybrid battery failed yesterday. I called Toyota of America this morning. They took all my info and said that they didn't sell any parts at their headquarter and referred me to contact the local Toyota dealers directly. I did speak to the dealer b4 calling them and wad told 5k for a new pack. Please advise. Thank you.
Batteries near puddles of water don't mix. 🙈. Good job testing them.
You counted the blocks wrong. The modules are labeled starting from the side farthest from the ECU.
fantastic
SUPER WORK
THANK YOU FOR YOUR VIDEO
IS WHAT CAN YOU TELL ME BLOCK 9, BEGINNING TO COUNT FROM ECU (COMPUTER OR DRIVER SIDE TO PASSENGER OR THE CONTRARY, IT OR THE POSITION OF BLOCK 9?
THANK YOU
May God bless you
Jzk brother I will change my soon. My scanner say code P0A80 replace battery pack, along with p0319 block 9 weak, and p0320 block 10 is weak. Replacing the cells which are bad will work?
There are many factors in battery reconditioning. One resource I found which successfully combines these is the Magic Mender Wizard (check it out on google) definately the no.1 info i've seen. look at this unbelievable resource.
The way he's handling all this metal without gloves made me nervous as hell for him. Absolutely gropes and fingers the shit out of that battery.
are you suppose to touch is with your feet instead?
Once they are not in series anymore, they are as dangerous as d-cell flashlight batteries. They only have 7.5-8 volts each.
Agreed. Our hand have natural oils and contaminants that would render this entire process mute.
Interesting video (was expecting that)
But i couldn't stop thinking:
Touching a charged HV battery (even with disconnected elements) like a maniac, without gloves, by a water puddle. What can go wrong ?
Remembered my younger days when i was adjusting HV and Focus on powered-on CRT monitors (just a 15 kV voltage for the the tube grid - you quickly learn to not be so touchy touchy with live hardware) :D
Nice
If a few cells are bad you should replace them all for peace of mind. You you also use some PPE, at least dielectric gloves & safety glasses.
My bad. You’re right!
Hi Iman
Did you have to balance the units? How is your battery performing now? Did you have any problem since you have changed the cell? My gen2 battery didn’t show the dead signs yet, but time to time suddenly battery level drops fron 6/bar 3 bar and takes ages to recharge. is this a sign of nearly dead battery? Should I make attempt to replace the cell? Or should I wait? Any suggestions please. Thanks
I know just enough to be dangerous, What u described is most likely due to 1 or more of the cells being out of balance ie starting to go bad and causing more resistance. Replacing bad cells will help the other cells last longer since they will to be easier to balance. And even be more efficient since the BMS has to drain off energy to keep cells in balance when cells r dying. But it not easy, so its up u to determine when it worth the effort. And changing each cell individually is most effective for an older battery pack since BMS r never perfect, Hope this helped more than just being confusing,
Each cell needs to be load tested to find the bad one. I just attach a 12 headlight and time the cell with a load on it for 2 minutes with a multi meter.
hey what do you mean you power a 12v headlight with clips? im kinda electrically illiterate
Mike T I think he means measuring a battery when it is floating no-load doesn’t give a valid measurement. Because even a weak battery may measure good in that case. But if you put an electric load on the battery ( give it some work to do ) by attaching a light bulb - then the battery voltage measured is valid / useful.
For how long you suggest to put a 12 volts bulb for checking the battery?
I started the procedure and giving 6 minutes to each cell with reading before after and again after six minutes. Just want to know what if I connect three 12 volts bulb in parallel in order to save time?
Dr Shakir, I don’t know the Prius battery specifically to give an exact answer. But I will say, in general, that the more current is drawn then the heavier the load placed on the battery. Yes the load would be increased with more bulbs in parallel. It would also be increased if the wattage of the bulb where higher but it’s voltage were the same ( Watts = Volts * Current ). Having said all that, I think your current method is fine because the voltage measured is not a float voltage because you have a load attached. How do the voltage readings compare between the first and second readings? ( Also no need to keep a heavy load on the battery for too long - as doings so could be stressful to the battery. )
Kudos
Hello, do you know how to count the blocks? I got block 12 weak but is it from the battery and away or from the other side towards the battery help please!
Dobry, prosty filmik, gratuluję. Good job! Tak trzymać. Pozdrawiam
i to just bought a 2011 chevy silverado hybrid and i have a code P0BBD (hybrid battery pack voltage variation exceeded limit) Not sure if it means to replace the entire pack or i can do this and replace the ones that are bad, hopefully its just one i need to change. I also have AP0AC4 code (hybrid pwertrain ctrl mod requested) not really sure what that is but im hoping your informative video helps me fix my truck. thank you sir
Thank you. I didn't want to buy a Prius because I didn't want to have to replace battery later on and pay 3 to 4 thousand.
Damien Runner it’s not that hard!
And now you can see how to hotrod them by making bigger stacks with junkyard parts. ;-)
Even if you need to replace the whole sealed thing, they're only $1500 these days and come with a warranty.
Thank You Sir🙏
Would be really helpful Imann if you gave a report since 2017 on whether replacing the one module was sufficient to fix the battery.
You' re Amazing bro thanks for helping me to change my bad cell battery God bless you !
Gabriel Rodriquez did you change it? Was it hard?
Did it work?
تشكر از ويديوى خوب شما من هم مشكل دارم با hybrid battery امكان دارد تلفونى صحبت كنم با شما