The document of Ultralife (and many other Li-battery manufacturers) might/will have to be reworked fairly soon, as indications are mounting that DOT/PHMSA/FAA will change the regulations in regards to transportation of Li-batteries in a significant way, subjecting ALL kind of Li-batteries (>3.7 Wh) to DG regulations. Time of publication not yet known. Time of implementation not yet known, but it might come faster than anybody is thinking.
See also
http://online.wsj.com/article/SB10001424052748704285104575492212976583750.html?ru=yahoo&mo d=yahoo_hs