How does my battery health look? Seem to be having issues with bank #11. Battery is a few years old.

Bought a Prius with 300k miles recently. Battery has been replaced a few years ago, was looking at the Dr. Prius app and seem to have an issue with bank #11. It's very high resistance and has very high voltage difference under heavy load.

Heavy load:



No load other than car on:



Battery test results:


My battery scored 83% health with 20 seconds of discrepancy due to me adjusting voltage use.

I'm fairly technical and very mechanically inclined, but I don't know anything about hybrids/batteries. How big of an issue is this? How hard would it be to fix, if needed? I would rather not buy a new/refurbished battery, I'd rather fix it myself if need be.

Sounds like if I needed to replace it I'd have to find a bank with very similar voltage? How does the charge/discharge part work once you get everything back together?

 

Better images

 

One issues that I didn't think of until now, my car has a GreenTec auto battery installed with dynamite shaped cells. Warranty is out on it, and they don't sell singular blades. Does anyone know where I can find these blades so I can replace the one going bad on my car? I was told by a rep "Our battery supplier supplies multiple brands, I can't tell you who our supplier is but if you find them you can buy singular blades".

I'll be ripping into the battery in the next few days probably, maybe I can find a part number or something on one of the blades.

 

What's the best course of action?

 

Thanks