I've read about those... 3.8 volt cells, full charge 4.2V... there are "protected" versions as well, where there is a small circuit at one end of the cell that controls the charge / discharge cut off voltage... not sure if I would use the protected ones in an airborne system... but at 2.6 Ah, 2 cells would be great for a HV servo buss setup, super light weight to boot... max continuous discharge of 30A, that's impressive for such a small cell.
John M,