I'm new to the forum here and didn't really know where to post this so here goes. I know that the extended batteries for Jornada 720, 728, etc. are extremely tough to find but I came accross this listing on eBay and thought some people would be interested:
Actually, Jornada batteries are not as hard to find as, for example, Intermec 6651 batteries. Jornada Central is another eBay seller that has several Jornada batteries.