2010 Prius Upgraded Hybrid Battery Question for technical help

I purchased a 2010 Prius, according to the previous owner the hybrid battery was changed at some point. I thought cell/modules were original ,until I removed the battery and put eyes on it. Unsure if
The car remained parked for a long time and discharge due to non use.

I plan to recharge or rebuild and balance the pack after determining which module is bad. I want to charge and discharge 3 times and record the mah on each cell. I purchased a Tenergy T180 charger to help.

Discovered the cells are cylindrical in shape and green and 14 total. Each section say 6.5AH and has 4.4V stamped with “Electron electric vehicle experts.” Appear to be 3 rows tall in each module.

I’m trying to figure out the following:
1. What voltage to charge each individual module? And how many Amps? I read online it might be 14.4V but want to confirm nothing indicate on the battery. Other than 4.4v and 6.5ah

2. What amp to discharge and to what voltage to not damage the cell/module?

I’m including pictures of the current voltage after being removed without charged.
I just realized I labeled them backwards 1 should be closed to the fan.

 

+photos