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