Puffed Ping Pouches Vs. Perfect Ping Pouches

I received the replacement pouches from David  yesterday and took a couple of quick pictures to show the difference between a puffed pouch and a normal pouch.

 Newer cells on the right. Puffy cells on the left.

Four puffy cells on the left are taller than 5 normal cells on the right.

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.

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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...

2x24V 20Ah Ping Pouch Pack Photos

These Ping 24V 20Ah V2.0 packs are similar in age, however, one has puffed cells and the other seems to be normal. Video and photos below:

The bad pack goes through a cycle of LED blinking and charging...

 24V 20Ah Ping pack with puffed pouches

 24V 20Ah Ping pack with messy wiring

 Front back is good. Back pack is puffed.

Both chargers work 

Charging both packs 

Different wiring harnesses 

Replacement 3.7V 10Ah LiPO pouch cells arrived

I ordered 3x3.7V 10Ah LiPO pouches to replace the defectives ones on my LiPO packs. They have markings on them that they are 37V and 10000mAh, however, the plastic sleeves are marked as being 3.7V and 1.4-1.7mOhm and ~3000 mAh. I wonder why the discrepancy. I'll test one tonight to see how it does...

Here are some pics of the cells: