I purchased my SR Blackbook last Thursday - the day they were released. I use my battery quite a bit, as I'm always moving locations. My battery last forever, especially compared to my old dell. However, just today, the highest percentage the battery will show is 97%. I know this isn't too far from 100%, but I was wondering if this is normal. Also, as the battery weakens, will this percentage decrease? At some point, will it show a full charge as 50%? I have read several articles about how to preserve the life of the battery. I try to do most of these things, but ultimately, I can't let my concerns over saving my battery get in the way of my work. Thanks for the help! I have really enjoyed reading these posts over the last couple of months!