Hi - I have a microexpress 1.7 (dothan) Centrino laptop with 1 gig ram, 60 gig (5400) hard drive, and ATI 9700 video card. Rather than using the built in wireless, I use a DLink card to connect at 108mbps on my network. I've read how people get anywhere from 4 to 6 hours battery life, but I'm lucky to get a shade more than three hours just browsing the web. It's a 19 volt battery I believe, but don't know how many cells it has. Any thoughts on how people get so much run time out of there batteries? Or do I need to purchase a higher capacity battery? Thanks,