Ping Revealed

I took off the blue shrinkwrap as well as the multiple layers of black duct tape to get to the bare Ping 5Ah pouch cells. The voltages for the 8 groups of 4 cells each is:

1.39
3.34
3.34
3.38
3.34
3.34
3.35
3.28

You can probably tell which group is the problem and which group is puffed! :)

Here are some photos of the innards.

\

Still with duct tape wrapping

Wire side revealed. 

After removing multiple layers of duct tape and plastic wrap, the puffed cells are revealed on the + lead side. They measure 1.39V across the +- posts.

I'm not sure what these say...