I own an ASUS Z71V Notebook and I have some problem with the battery... here's the specs of the laptop: Pentium® M processor 760 2MB Cache 2.0GHz 533FSB Seagate 80GB/8MB Cache 5400RPM 2GB DDR2-4200 PCI Express Nvidia 6600-128MB DVDRW - Dual Layer Intel 802.11 a/b/g wireless card I've had this laptop for about half a year. Recently, the battery doesnt charge above 80%. I'm not sure why it's doing this. The charging light doesnt turn off and I'm not sure what the problem is. any ideas?