Hi I have resently installed windows 7 on my Acer Aspire One D150, and the battery time in xp could be up to 6.5 hours to 7 hours, at fully charged, a 6 cell 4400mah battery, original acer. But in windows 7 i only get about 5 hours. Is there anyone who can make a test and see if this is normal. I dont want to sacrifice battery time over windows 7 stuff, then i would rather stick with XP. Best Regards Morten