So if you connect your cells together to form a 12V battery,(2 banks in parallell with 6 cells in each bank.) 1280Ah is believeable. ;)
you can see my batteries at: http://www.mwlmf.net/gallery/forkliftbatteries
If your cells are like mine, they should be seated in a tight fitting box, to prevent the walls of the cells to flex too much.