Error Codes troubleshooting HV battery

Hi community,
I recently changed 5 modules in my 2005 prius HV battery pack. I put the pack back in the car and it cranked up (success 1). It ran for a few minutes and sparked a hybrid low voltage error. I utilized the DrPrius app and it said there were problems with module 1. I took the battery back out and cleaned the cables a little more deeply. I put back in and it ran good for about 30 min. Then similar error and Dr Prius said issues with module 6. I screen spotted this time (forum wouldn't let me upload pic, so this is a google drive link):

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At this point, I was wondering what may be the issue. I decided to clear the code and force charge/discharge the battery by driving. I did this for about 5-6 times clearing the code each time to use the battery up. I then rechecked the Dr. Prius app and had this weird reverse red graph on module 2:

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Does anyone know what a reverse red voltage would mean on the app?

Does anyone have any suggestions for what I should do next?

FYI, I reconditioned each module with a hobby charger to determine which were still usable and put 5 new ones in from an Ebay seller. I discharged all cells then recharged them putting all the positive and negative terminals on one side.

I also have an issue with speedometer, gas gauge, etc. It doesn't light up. I've seen videos on how to fix this and sellers on ebay who will fix it for me. My car though also has a display screen that is not displaying well. I am referring to the screen that shows the battery level. My wonder is if that same circuit board may control the screen/display area as well. Perhaps it is not getting the voltage it needs to display brightly?

Perhaps my first step would be to exchange the whole board to see if that fixes the screen?

Appreciate any wisdom from the community,
Basil

 

Thank you both for the replies. I'm going to use the advise and get back to the battery for a retry.