Charred to a crisp: New pictures show how full extent of damage to burnt Dreamliner batteries which prompted emergency landing | Mail Online
I found this just now. If the link works, and you scroll down, you will see a CT scan of the ANA battery, which shows different damage, at least to my eyes, than the JAL battery.
There is a CT scan of the battery. It clearly shows a damage gradient, starting at one end, and the other in is far less damaged.
To me this makes the investigation even more difficult. On the JAL battery, I did not see a single pattern of damage. i saw at least 6 cells, all being damaged in their own separate events, and finally one shorted and entered thermal runaway causing the fire.
The ANA damage shows heat damage radiating from one end of the box to the other. The last two cells at the end show little damage.
The investigators and Boeing really have their work cut out of themselves. To me it looks like two different failures.