Code P0A80 + P3013 All Battery Cells reading good! Any thoughts?

The direction of the module count is not based on how electrons flow out of the pack. The direction count is an arbitrary decision made by Toyota. They have not been consistent across models and generations. The Gen 1 count started at the ECU and the positive end of the pack. The attached picture is a shot from a Gen 1 manual. Back in 2014 it was common knowledge on PC that the count went in the same direction for the Gen 2 batteries. See post #626
Gen II Prius Individual Battery Module Replacement | Page 32 | PriusChat
It took a long time for that to get straightened out.

This poor guy opened up his pack up three times because he relied on DTC and module count and did not bother to test all the modules.
https://priuschat.com/threads/traction-battery-repair-recondition-with-ha-charger.174974/page- Posts #24 & #25.

 

Well, you did load testing right? And you haven't charged up each module individually? For best results charging pack to full charge via a grid charger, or individual module charging will give you more accurate self discharge readings... But for now add those discouraging numbers to your spread sheet and replace as many of the bad modules as you can afford to replace at the moment and revisit in a year to hunt for more. You'll also would benefit from reconditioning the pack, so let us know when you want to learn more about that?

 

Yes.

 

Well it's hot this time of year so you'll need to blow some air around to keep things cool, or do it at night or next to an air conditioner...

The basic science of it is here: BU-807: How to Restore Nickel-based Batteries – Battery University

You need to discharge and recharge each module several times, each time discharging more deeply to recondition.

As for hobby chargers the cheapest-best option in my opinion is this one: HTRC T240 DUO 10A Touch Screen Dual Channel Battery Balance Charger | eBay which keeps the price under $40 per module...

For the past year I've been using 5 of these: GENUINE SKYRC iMAX B6AC V2 ACDC LiPo NiMh Battery Balance Charger US STOCK 714424414151 | eBay but they don't have cooling fans and shut off early and no graph of charge & discharge cycle.

Also because the discharge resistors in these chargers are 10watts it takes an eternity to discharge at full charge and puts a lot of heat directly on the circuit board, so I use a 12v / 50w bulb, as well as a 12v / 20w bulb and then dial back the wattage until the battery drains low enough for the the 10w resistor to make quick work of the remaining discharge.

Here's what Prolong recommends to discharge each cell or whole pack down to:

 

If you think you have a bad one charge it up and test it again and be as thorough as possible. When you're dealing with so many modules checking and re-checking helps filter out any human error that leads to false readings.

There are six cells in a module so when it says .5v per cell that means drain down the module to 3 volts... Max charge on a whole Prius pack is 245v, which divided by 28 is 8.75 max charge per module. Tell tale sign of a module in need of reconditioning or is aging significantly is it will charge real fast up to 9v... No need to worry about over charging or under charging, these things are real tough! But NIMH don't do well if they're overcharged often, so there's limits you don't want to push...

In the past half year Prolong raised their discharge numbers... They used to recommend the third discharge down to 0.1v per cell or 0.6v per module and I've never had a problem with over discharging, even when one time I fell asleep and didn't realize I was discharging with the 12v lights for 12 hours... All the modules were at 0.0v but as soon as I disconnected the lights they charged up great and have been drirving my friends car around without issue, so I got lucky... But yes, Prolong raised it to 3v per module because it will cause weaker modules to fail sometime going lower and they rather have less thorough reconditioning than people blaming them for ruining their pack.

 

'newpriuusbatteries.com'

don't buy reman

edit: oops, i forgot we were talking camry. try greenbean

unfortunately, the rebuilders are doing the same thing as you, so their batteries are only as good as their warranty

their warranty is only as good as their willingness to honor it,

their willingness as good as their attempts to avoid bankruptcy

and your willingness based on how much down time you can put up with

 

Probably best to buy a Prolong system and modules from Hybrid Automotive or a new pack from Toyota.

 

Welcome to the challenge of hybrid battery repair... We all have to go through it and if you keep at it you learn more and more and it happens less often. Of course it's way less stressful if someone pays you for your suffering. And yes, I know, It always seems like a huge effort to do it all over again when the the light comes up, but it really isn't. It gets faster every time you do it... One time I was so pissed off the light came on again I had the pack out of the car and stripped down for diagnosis in only 18 minutes.

Through more testing and re-conditioning of modules you can have a reliable pack again. The more you invest in diagnostic gear, Prolong gear, spare parts, the more reliable the work gets. And compared to $2k for a new pack, it might be cheaper to keep at it DIY style...

On the bright side if you decide to finance a new pack, you'll have no problem installing it in a few hours.

 

I owned the Prolong equipment for our 2010 Prius and it worked well.

We used the equipment to rebuild 3 failed battery packs (each one had a failed module), which allowed 3 more Prii to live another day.

You could buy some more modules, swap them into the pack and charge and recondition the pack. Great DIY equipment to have.

 

What about the day after that?

 

Well 2 of the 3 are still going well a year or so later.

The other one was to another member here who we loaned the equipment out to for rebuilding his. Then he sold it for an urban assault vehicle.

His MPG’s in his 06 prior to selling were the highest he had seen though.

So decent results and much better ROI if you have others in the same boat with you .