My 300's battery seems to last forever too. It came fully charged out of the box and I still haven't charged it, other than the five minutes it takes to add some new books. I think Sony is selling themselves short when they say the charge will last two weeks.
The 600's battery seems to go down much quicker because I'm always using all the added features.
Last edited by The-eBook-Reader; 09-23-2009 at 10:41 AM.