Lifepo4 fully discharged... can it be revived?

[Raisedeyebrows]

Sherlock Holmes good job.
So what chemistry are they

I found on his blog where he talked about the ezee batteries, " LiMn chemistry". I guess this explains why the bike came with a 42v charger. Like I said before I know Jack Squat about prismatic cells. One thing I can see though is the cells were not balancing as some were at 3.7 after charging and some were at 4.0.

Upon inspection I saw 2 of the small boards, 1 on each cell group of 5.

 

[999zip999]

Yea for LiMn it's. Pretty much dead at 3.4v and. 4.15 volt for the heart of power.
Fecter is an expert and Im waiting for more info on boards. Thanks.