"Here - Hold my Beer"
Not sure where you get the "double the life" from. From everything I read they are somewhat better - maybe - its hard to say since not allot of info about them ...I just got a quote, exactly the same price as shipping from Amy on alibaba in China, but they cannot guarantee you will receive the new LF280K version which is upgraded to 6000 cycles.
I decided to ship from China as i really want this new version with double the life. She infact suggested the same solution if I wanted the new version.