Well my girlfriend has a Dell inspiron e1505 and she told me that she has been having a major problem with it for awhile. Her battery will a lot of the time refuse to charge, meaning right when she unplugs it, it shuts off. However, sometimes it will charge, but when it does this it last for an hour and half. But most of the times it does not do this. She has told me she looked up the problem and many people experience this problem and that even if you buy a new battery it still will happen. She has yet to ever replace her battery and i know she has had it for more then a year now. But before i go out and buy a battery for her what do you guys think could be wrong with it?