It appears to be this system that was sold last sept by a very reputable seller with the flaw fully disclosed...
http://forum.thinkpads.com/viewtopic.php?f=11&t=99621
The OP's claim that only a cracked screen was disclosed doesn't seem likely since there is no mention of any screen damage at all in this post, or in the January 2012 post where he first attempted to sell it...
http://forum.thinkpads.com/viewtopic.php?f=11&t=101453
Unless I'm missing something, this advertisement is highly inaccurate if not deceptive. The original sale stated the board was defective and included NO battery, so any battery it now includes must have been added by the seller, so alluding that it "may" be only a bad battery appears to be deceptive, obviously the board is bad.
I know not everyone has the best memory, but I can't think of any credible reason someone would simply forget that they broke a screen since this was listed as having a perfect screen in september 2011 and january 2012.
Unless the OP can provide credible answers to this and the questions previously asked, I think any member considering buying it should be highly skeptical.