I also am having a terrible battery time. It shows 1hr 30 min, but screen goes dark and kicks me out in 5 minutes!! Very annoying. I have a 3 yr old HP Pavilion dv4. I am IN NO WAY A COMPUTER GEEK!! The guy that has helped me and got me on ubuntu has not heard of this and told me to get on here to see what suggestions I find. Please give me some ideas. I went to batteries plus today to get a new battery, but the clerk said the battery I have shows I should have 2-3 hours life each time it's charged, and it showed fully charged at that time. I turned on the computer and showed him it kicks me out. he told me I didn't need a battery, I need to find the cause of the laptop not accepting the battery support. Please give me any suggestions. Thanks.