Here's the CBA III battery test graphic on the Tenergy LiFePO4 12.8V10ah. It rated at 9.71ah and ran for 11hours on 0.8amp draw from 13.1V to 12.7V. Dropped off in the last hour to 11.5V bringing it to 12 hours of useful life.. I arbitrarily set the cut off at 11.5V in my test:

https://dl.dropbox.com/s/xc4e0furdwn...Tenergy_L1.jpg

Walt Rogers WX