How to make ASUS M9V battery lasts longer?

Question:I’ve had my ASUS M9V batterysince Christmas of 07, and when I turn it on it say something about my battery not being recognized.. And when its recharged 100% it only lasts 32 mins.. It used to last 2 hours. Is there something I can do to make it last longer Or do I have to buy a new battery..? Answer:Depending upon the model battery, the battery usually lasts from 1 to 8 hours. However, with efficient battery usage, an hour or two of battery power can significantly be increased!(You can save battery power by new battery( Toshiba PA3000U-1BRS battery, Toshiba PA3098U-1BRS battery , Toshiba PA3107U-1BAS battery , Toshiba PA3107U-1BRS battery ) saving mode and by following good notebook battery-saving practices. And regarding your problem, i woulld like you to check out the below site,