I have a Vaio E series notebook which is only around 9 months old. When I started it up the other day, a box opened on my desktop informing me that my battery had started to deteriorate (it showed that it had gone from 'Excellent' to 'Good'). I just wondered whether this was normal on such a new notebook, or whether it should have lasted longer than this? The battery life itself seems fine, so perhaps I'm worrying too much about it. Thanks for your help.