2012 Camry - time for new traction battery?

Hi Folks,

We have a 2012 Camry Hybrid with ~165k on it.

This morning, the 'Check Hybrid System' warning appeared on the dash with a few other lights:


I downloaded Dr. Prius for the first time and used an old Bluetooth OBDII dongle:



Does this definitively point to a traction battery that needs to be replaced? Or are there other things to be checked before making that decision?

FWIW - After taking the above screenshot, I cleared a code P0a80 with Torque. The 'Check Hybrid System' and other warning lights cleared from the dash. I switched back to Dr. Prius, and now block 11 looks average, and block 4 looks low:


Thanks!

 

Also - forgot to note that Dr. Prius life expectancy test showed ~25%. I have NOT yet run a full battery test, but will once I've got a few minutes to find an open stretch of road.

 

Thanks for the reply.

I went ahead and pulled the HV battery following a youtube video.

Looks like there is some corrosion, but nothing that seems extreme to me:


I presume at this point it's worth a try to clean those bus bars and see if it helps, or replace with some nickel plated ones?

If I don't have any special equipment beyond a pretty basic multimeter, I presume I should probably not attempt to balance the modules?

There seem to be mixed opinions on 'rotating' the blocks - is that something you all would recommend?

Thanks!