Cheap chinese batteries eh? As opposed to what... a cheap taiwanese battery?
http://www.thomas-distributing.com/dbatteries.php
I am not a battery geek so I have no way of evaluating these claims. I have no reason to expect that they're any further off from their claims than the current 9Ah batteries though. My point was mainly that technology has progressed beyond what they are currently selling - which is always going to be the case if they haven't refreshed their offering in the last year.