The battery in the Pocket Pro is from LG. Robertb said it would be listed in the FAQ, but that has not happened yet. See Great job on the "sticky"!!
I have read several ePubs on the Pocket Pro without crashes. I exit to the file system whenever I take a break, and that might help although it is hard to tell for sure. I have noticed that the bookmark seems to only be accurate to the page (as defined by Adobe), so it does not always come back at exactly the right place.