Finally got the P0A80 on my 2011

A 14 year old battery pack is already on it's last legs and should be replaced. Instead of finding a rebuilder, you should call around to local salvage/wrecking yards and see if they have a late model hybrid with similar modules you can buy. Then swap in the newer modules. This will be the best economical and reliable solution

 

aftermarket are similarly priced to oem, around 2k.

 

You need to have a little skill in determining the bad modules in the pack and replacing them. If you cannot do that properly, you can buy a complete used pack from a salvage yard and put it in your car.

That should work if it's not old

 

brand new oem. call all the dealers you are willing to drive to, they are competitive

 

Your answers are contradictory. You claim that you repaired the high-voltage battery, but you do not know how to identify bad cells. Then what is the point of repairing? Rearranging the faulty and working ones in different places. But the sum does not change from rearranging the terms.

 

There are many factors to determine if you would get a successful rebuild. It probably would help if the battery pack that you are repairing is an original pack containing most of the original modules. For example in a pack of 28 modules, you would want at least 25 of them to be the same, replacing maybe up to 3 failed modules of similar capacity and age. This will allow you to get the best results for reliability.

If you are rebuilding a battery pack with many different modules of different age and capacities, you will have a hard time to get a reliable pack. The computer in the car will pick up the differences in voltage under load (100a) so if the modules are not very similar, you will get a failure again.

Internal resistance in a module, the self discharge rate, voltage variations, etc all will determine how long the battery pack will last you. So you really need a little bit of skill and experience before you can properly rebuild a battery pack

 

A cell can have different voltages depending on how charged it is.

What is low voltage in your understanding? 8v? 7v? 6v?

 

Surprised they havent answered your real question.

Buy a Carista and download the Dr. Prius app.

 

Don't shake the thermometer when it shows a high temperature. It won't cure it.
When you have problematic code, you need a systematic approach. Study this.

https://static.nhtsa.gov/odi/tsbs/2019/MC-10169322-9999.pdf

https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/20zmw/cip0a80.pdf

https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/20zmw/cip0a7f.pdf

https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/20zmw/cip3011a.pdf

Once you have learned the basics, you need to understand what you can use to read data from various systems, including a hybrid battery.
This could be a special program from Techstream.
TechStream | PriusChat
But you also need a cable to connect the computer to the program, which you need to purchase.

Or use an OBDII adapter and a program on your phone that will allow you to read the necessary data.
Hybrid battery diagnostic and repair tool for Toyota and Lexus
can-newsletter.org - Miscellaneous

Descriptions of various applications for the phone can be read here.
https://priuschat.com/threads/gen2-obd2-app-review.232741

 

Buy new cells, you already know the whack a mole routine. Getting reliable no concern hv battery life for the next ten years is worth it.

Dr Prius is no magic bullet and the company will offer you new sodium replacements which are unproven. Their lithium replacements and others nimh aftermarket replacements all had very short lifespans and the lithium sometimes failed with smoke in the cabin.

But if you want to mix and match used modules (again) watch this guy:

Prius Hybrid Battery Reconditioning "How To Properly Repair A High Voltage Nickel Metal Hydride (NiMH) Battery Pack For Hybrid Vehicles"

the hybrid guy

 

So there is no confusion, Dr. Prius app will help you figure out which modules are bad and can give you a battery health test along with other features.

The maker of the app also offers aftermarket battery options at sodiumhybrid.com

This rjperson is not an actual user of any of said products.

The Carista OBD reader is great and offers dealer settings and options and works flawlessly with the Dr. Prius app (not to be confused with sodiumhybrid.com)