*This battery reconditioning program exceeded my presumptions. It worked on any drill battery, several AA and AAA batteries, **batery.repair** and any camera battery. The steps are simple and the act itself is exciting to do. No matter what type of battery you`ve got, it is sure to function again!*

Making use of the kzfaq.infoUgkxcJ22tnHH9l1vjdIdEIG27iOG55P7LXI8 reconditioning plan, I just saved 2 auto batteries from being completely junked. The guides were very simple to follow. I wish I would have found this years ago! You may use the guide to recondition any battery type

You are too nice. The moment someone tells me “the battery will last for ever”, I know they’re being dishonest. 3 weeks later the battery went dead? Definitely a scam! He probably just got rid of the triangle and it popped up again, on you that time. Anyhow, I’m glad you managed to save your car at the end.

THANKS for sharing your mission, it was a great guide for me. I just replaced the bad module for $35 off ebay, it was also #10 where the power lead is connected. ALL the battery bus bars & retaining nuts were corroded, looking like mold on cheese, so I put in a lot more labor but accomplish my mission today. Thanks for recording & posting 👍

the French accent is good at 36:46 !! "tout doucement, tout doucement..." That's it, nice and slow... I really appreciate your video, it's rather strong detailed. I say to you : stay on this path!

How is your rebuilt battery holding up one year later?

I just opened mine today and checked voltages. They were all up to specs 7.5 volts. Contacts showed some corrosion and im cleaning all tomorrow. Thanka for your video. You the man!

Shock Hazard is way overstated.Hardest part of reassembly is compressing the battery pack with the end plate. Use a long screw clamp or two.Don't take the back seat apart.Tilt it forward and just remove the 4 big bolts that hold the upper seats.Leave the lower seats in.You really need an electric screwdriver for all the small bolts including the 56 nuts on the modules.The rest is common hand tools. Use alot of plastic bowls for the bolts and nuts and put them next to the part. Take both side brackets off. Clean all air ducting and the fan.Put the battery between two sawhorses so you can access the bottom module bolts.Clean the bus bars and nuts with Caig Deoxit D5.Do not take the 28 bottom module bolts off unless you need to remove that module.Reassemble the modules with the lowest voltage at the removal end.Saves time next time.When did he do voltage readings?Mark the voltage on top of each module.Normally, there is a bunch of green stuff on the bus bars.Use the Deoxit D5 for that.No new modules are available.They are all used.Stack all modules vertically.You do not need to replace all the modules.If you do that, you might as well buy a new battery at the dealer. There is no guarantee that the new "Used" modules you buy are better than the good ones you have.Just replace the lowest voltage ones - say below 7.2 volts.I can't see the savings replacing all the modules..I have replaced one module each of 3 times.There is no guarantee that his new" modules won't fail tomorrow.It's time rather than mileage that kills modules.Toyota warranty on the battery is 150k,10 years in Calif.

Really enjoyed your video. Most people won't dare do this repair. Hybrid shops will replace only 1 or 2 bad cells but will last about a year then you have to return. It's best to replace them all or if you don't have the money, then replace half the cells this year and the rest in a year or two. I've taken the EBAY route and have replaced 11 cells 1 to 3 a year. None of the used EBAY cells have failed only the original ones. I am presently working on an electronic device that keeps them balanced when the car is off. If this works it should make the cells last longer. Great video!

Great work buddy, thanks for sharing your experience.

Many thanks for your entertaining video. One of the best I've watched, especially not spending extra time prefacing the whole thing or waxing philosophic. I have a 2007 and this was my second "triangle of death" experience, the first being the inverter coolant pump, easy enough to replace. So far I've only replaced one bad cell in the array, but the car seems fine! I wouldn't do this without a code reader and software, but each to their own. Got my fingers crossed, but all my good cells read 8.3 volts and the pack seems very balanced now. Sorry you got sold a lame Prius - some people really suck. Hope your car continues to give you good service and I'm glad Electron is making the video worth your while.

Wow replacing HV battery is actually much harder than I thought... thanks for the video so dummy like me won't try and make a mess

Those cells are in series meaning nose to tail like elephants do at the circus or batteries in a flashlight, the voltage adds up in series, parallel is like the rungs on a ladder each cell is like a rung on a ladder rather than nose to tail, parallel the voltage does not add up its the same no matter how many cells.

I love watching videos from guys in shorts and flip flops doing something for the first time.

Great video, I don't have a Prius but after this might consider getting one.

Latest update: kzfaq.info/get/bejne/bc-jnquJ1cmbqmQ.html

best prius hv replacement video I've seen. I think you have good skills. I wear flip flops when I work on my car also lol. Also, unless the previous owner disclosed to you that they had a cell replaced, it sounds like they were not being fully honest with you regarding the battery lasting "forever".

I've never seen the bus bars and nuts so clean on a pulled HV battery before!

awesome video, thank you.. now i gotta see who would sell me those cells so i can replace my 2005 prius battery.. i called Oreiley and they told me the same thing.. and i live in Hawaii.. will try, and thanks again for video..

Adam, thank you for putting this video together. We just got a 2005 Prius for my 16 old daughter, it was a gift from my Dad. I feel like i can tackle the battery replacement after watching you do it in Flip Flops :-). I was wondering if you have had any issues with your headlights on your 2005 Prius? I have not been able to find a fix on line for it but thought you might know of one or have found a work around. Thanks agin for posting this video, it was super helpful. Brendan

thanks for sharing this great video, I will now start fixing my 2007 Toyota Camry Hybrid with "CHECK YOUR HYBRID SYSTEM" one of the video I watched he only replaced cells with less than 7V. I wonder if that is smart to do? I also seen one video that the cooling fan for the hybrid battery can also cause the Check your Hybrid system.

Thanks. I hope you don't mind if I make some suggestions. Wearing work clothes and work shoes for a start then when disassembling it is smart to mark everything for location and lay the removed parts in order of disassembly.

Sounds like your camera/phone was twisted and beaten to the point I'm amazed it worked the entire time.

Adam that was wonderful! Good job! I have a Toyota 2007 with only 130K miles on it. I had it for a year and a half. It was good to me no problems at all until the red light showed up on my dashboard. I would like to replace the bad cells only. Any recommendations on how to test the bad cells on my battery? Any recommended place from where to buy good cells? Thank you!

Interesting, you did a good job

If and when I have a traction battery problem, I think i will just replace the bad cell (cells). After all, the reason you decided to tackle the job was to save some money. Instead of spending 1100.00 it would be less than 100.00 to replace a couple of cells. Another savings of 1000 bucks. worth a shot for me anyway. I do understand that many people would still me more comfortable replacing the whole lot. One thing i did take note of in your video was that quite a bit of the pieces and panels you removed would also need to be removed to change out the rear shocks. I will be sure to have a couple of new ones ready if I ever need to tackle this chore. Thanks for sharing!

Here's what I'm interested to know: How long does the battery last before it needs replacing? What sort of mileage can I expect it to get up to without needing major repairs? What should I pay attention to when buying a used one? Thanks for getting in touch.

Great video sir, thank you

Love this one big, single take with every detail!

Great job!

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

Adam you are a legend, thank you so much for taking the time to make such an elaborative video. This has to be the most resource full video I've seen. Unfortunately my hybrid battery just went out but I still dnt have the courage to do it myself. However thank you and I'm glad everything turned out well. Btw what sytenthem did u have wheb u learn that your battery went out. Mine was check hybrid system error and my cruise control and eco/sport setting was disabled.

I have just one bad module, but I'll be swapping two. Was there any pit full to turning the battery and taking the nuts off?

It looked like your ground plate for the hv cables is up side down. Are you having any trouble with your radio? Static?

U don't need the vent tubes. The later generation prius doesn't even have it. I replaced my gen2 with a gen 3 battery without it. Also I took all the copper connection out and polished them all on the grinder polish wheel. Nice video. And yes.. i did mine on the driveway in my flip flops also last summer. lol

Ok so I need to ask. bc I can't pay all at once to replace them all. but I have a good mechanic, if I need to replace just bad cells with buying from ebay will that help me?

That "little orange thing" (around 4:50) is the MOST important. You do NOT need to pullout/disconnect the battery at the beginning. Once the orange thing is out, you are 100% safe. You don't need special gloves or or shoes.

Wow, Great video!!!

If you only use 1 hand and put the other one in a pocket and dont grab anything or bump your elbow etc to anything you cant get shocked with just 1 arm or hand being used, it requires both sides of power to complete the circuit, I saw a tech at SMUD grab a live 4000 volt line and said if he grabbed a railing etc with the free hand he would incinerate.

i dont think you find any 11 milimeter on that car . the numbers are not size labels , but strength labels !

200VDC in those batts...anything over 50VDC is nasty. However you have the best vid on these Prius hybrids...to date. At 5k per battery pack, too expensive worth more than the car is worth.

Great video. The flip flops seemed inappropriate shoe ware though. If you were a presenter on the TV you'd have to wear metal toe cap boots and a hard hat😁

Hey dude: I do like you show step by step how to take your Toyota Prius apart to which out the bad battery out from your Prius. But you might need to buy a coreless Impact drill. That would save you some time make your job lot faster too. Oh I do like your video that you have on here. So I hope you can make some more KZfaq video on here again. you have a friend from Houston Tx

Oh I have a 2009 Toyota Prius myself so I hope to see more Video but I hope you can keep me update about some more KZfaq Video on your web site okAgain keep up the good work on here ok

Adam, did you inspect the sides of the modules for damage to the alignment posts and dimples? Modules packed tightly like that are frequently damaged during transit. I have seen them fractured to the point they will leak - particularly at the two rectangular tabs on the middle cells. Properly shipped modules are completely isolated from one another.

Good job sharing

they sent them numbered in order for the balance and you put them in out of the box and may have problems from not being balanced

You forgot to take the passenger side side brace off. Buy a "plug puller' for those black plastic plugs. Forget flip flops. You need traction for lifting. Buy some Reebok Nano 8 Crossfit Shoes. Don't take the top off until you have the battery between two sawhorses. You must get under the battery to get those 28 bottom nuts. Take off that flimsy metal side panel before you remove the top. You remove the bus bars not because of shock hazard but to avoid stretching the bus bars when you remove the end plate. Use a marking pen to mark the outside of the end panel (metal) and the outside of the plastic compression end panel. Make sure the 3 thermistor leads are installed the right way on the Module clip holders.Be careful with the 3 thermistor leads as Toyota does not sell a new harness. You only need to disconnect the positive on the 12 volt with a 10 mm 1/4" socket.You only need a 8mm socket for the bottom bolts and nuts for the battery connections, a 10 mm for many bolts and nuts, a 12mm socket for the big battery bolts and a 14mm for the seat backs. I don't use wrenches for anything but I use a 1/4" battery screwdriver for the small stuff and a 3/8 battery drill with male socket adapter for the big bolts. Don't believe the dealer can do it in 45 minutes. In fact, the dealer gets a shell with the modules and has to do what you do but he also has to transfer your computer end. Even the dealer techs take a few hours with power tools. They will tell you that they never "fix" by just replacing bad modules. But they will for "needy" customers or for "good will".

Curious, before buying the Prius - did the HV Battery check good with an app like Dr Prius ? I may buy a used Prius & would like to know if Dr Prius can be fooled.

Good job! At least Toyota will sell you all the parts even if it's expensive, unlike some other car company like Tesla!

Hey bro question please can i replace the second gen cells to my first gen ? Bcoz i don't find the first gen cells here where i am answer please

Please give link to the place you got the new key fob .

Hey, Adam, thank you for sharing this wonderful video. Are you still in Prove? Coz My 2008 Prius has P0a80 code now, and I am not sure whether I need to replace the whole 28 modules. There are some videos suggest to replace the bad module, do you know how to check modules? If you are in Provo, may I visit you for hybrid battery questions? Thanks

“Watching” (more like listening) to the Dallas buyers club taking apart a Toyota Prius! ;-) Very entertaining and I wonder if anybody did the swap but with newer types of batteries?

Hi Adam. Thinking about buying an 06 Prius with a battery error code. Getting a good price on the car and if I can rebuild the battery it will be much cheaper than market price. Would this be something you'd recommend? One question about the process. When you were disconnecting the nuts connecting the batteries with the orange busses, was there a danger there of electrocution? What did you use to disconnect? Thanks, Dave

Have you experienced any chirping sound from the between the firewall in the inverter area as you're driving around or going to park? Mine's doing that but all the tests that they did diagnostics from the Toyota place or is showing nothing. If anybody out there has had this experience and knows what it is I would appreciate the heads-up

Brave man!

love workin on toyota.. going to be dissecting my own battery waitin on parts and some spiffy new milwaukee 12v tools. Every little bit of information helps

Good job

everyday i learn something new today was your day thank u for posting

You did all this without explosives. I'm impressed.

I also have a 2005 with 182k. I just replace the fifth module since 160k. I can do the R&R in about 5 hours. How long your "fix" lasts depends on how old those modules are. All aftermarket modules are used. Toyota does not sell new modules unless they are in a new pack for at least $2000 (no labor). You might as well learn to do this because in time one module will fail and please do not buy a whole pack for one module that fails.I would replace the bad module and any weak ones and keep the rest of my newer modules for the "next time". I use no gloves and I lift it out myself. But I deadlift 225 at the gym and I'm 70 years old. Yes, it's a hassle but you're not supposed to keep the car this long. Most people trade them in when the red triangle of death comes on. Once the orange plug is out, the shock hazard is nil. It kills the series continuity. No one module is going to shock you to death.

How is it running. Ant issues?

Call me crazy but would it not be possible to take each cell off one by one and then reassemble one by one with the battery still in the trunk area thus avoid the heavy lifting out of the vehicle and then back in post battery assembly?

Just changed my bad cell. Car worked fine for 10 minutes and just when I arrived to home after test drive, the lights come up again. The battery cooling fan is runing now, I never heard before. A week before just changed the inverter fluid and engine oil. When I check my inverter fluid I can see movement in the fluid but not swirling. Can be the pump is the problem now?

How long did your batteries hold up? are they still going today?

Hey thanks alot!

Cleaning the battery fan was also needed I think as in Chris fix video doing this he showed that. There is fan near the battery. Thanks for the video.

It is now 2020 how did the pack held up till now?

what did you do with the old batteries?

Excuse my language but fucking WELL DONE bro !!!. Thank you for this very very informative video. I really needed this. Thank uuuu

Toyota. Everything is a 10mm or a 12mm. I think the wheel bearing nuts are a 22 and there's some 17mm on some brake components, but you can do a lot with just two spanners :-)

Thanks

hello, where I can buy these modules ,I also want to rebuild my Hybrid battery, would you like to tell my where I can buy it online? how much about these modules?

how much did you spend on the new batteries...and give same adress.

lol 3 weeks later... he was definitely being dishonest. They give some decent warning signs usually before they go. Also, I agree the shock hazard is overstated. There are sooooooooo many fail-safes in place to stop power when the ready mode is not illuminated. Even once that cover is off you would have to be making love to the battery to get zapped lmao. when you go to the dealer you are waiting on techs to become available.

Hehe, every Hybrid previous owner said same St words, " Battery will last forever"

I was under the impression that the batteries needed to be load balanced after replacement otherwise you receive the triangle code.

The number on the head of the bolt indicates tensile strength.

Fantastic job. Thank you vert much for the vidéo. Everything is clear and understandable. If my future Prius has the red triangle of the death, I know the solution. Thank you again. :-)

What was the cost again? Dealer vs each cell and all cell cost?

Bu akü nasıl sipariş edebiliriz¿

Our 2007 Prius was parked for 8 months and no one told us to disconnect the small battery and the main battery drained because of it. Our engine blew the head gasket and we got it fixed but now the car has issues. We are trying to sell it.

The numbers on the bolt are the grade of hardness for the steel, not a numbered step or size.

Less than 90 pounds for when you pulled out the 28 cell pack from the trunk??

Camera work is amazing

thanks big help

love it

How many miles were on the car when you replace the batteries

35:16 you didn’t clip the orange cables onto the orange carrier on the side of the battery when you clipped the black cover back on, but great tutorial, well done, sorry for being churlish.

Where can I buy these cells? Thanks.

somebody has been inside that battery before. also i wouldn't have changed all 28... only the low voltage cell needed replacement.

Instead of investing too much in a failure prone pack with used cells of unknown vintage, just search the internet junkyard sites for a newer battery. My 2005 battery died, so I bought a low mileage battery from a wrecked 2014 for only $850. Gained 9 years newer.

Does anyone remove the battery completely and run on gas only? Is this possible without the car freaking out?

top man!

Adam, Hope you are doing well. How has the hybrid cells you installed on the Prius holding up? Or would you recommend a new one? Thanks for any feedback.

You will find that the good modules are over 7.3 volts and some will be almost 8 volts on a fully charged battery. The bad modules will be below 7 volts. The bad ones stand out like a sore thumb. Usually only one fails at a time. It's a matter of time rather than mileage. Newer modules have better chemistry. I have replaced 4 modules at different times in my 2005. You get faster each time. I'm down to 4 hours with most time spent trying to compress the pack. I plan on getting a pipe clamp to compress the modules.

You are the best. Good luck. I want to buy TPrius '2006 in the august. Could you advice me something?

Hello are you active I have a few questions

So I change out the bad cells in my 09 prius, and it starts runs for maybe 30 sec to a min thin shuts off. And gives me the warning triangle and main battery symbol. And my code reader says replace hybrid battery. Is there maybe a ecm or something I'm overlooked. I would appreciate some help.