The link above is about Pelican Powerbrick, which contains a battery. What the OP refers to is the 6003 12v cigarette lighter adapter to charge the Axim battery. They are two different products.
BTW, I have been using the 6003 (two of them, purchased from Radio Shack and Wal-mart respectively) on and off in the past month or so, haven't had any problem so far.