Take care that it doesn't cost too much.
I have a Compaq laptop and a couple of weeks ago, I got a new hardrive and a whole new XP program on it. Yesterday I got a new battery for it. Even when I put the new battery in, it still had to be plugged in for it to work and it worked all night. Now it won't even work with it charging. I go to log on and then automatically it shuts off. I thought it was the cord to charge it, but i went out and bought a new cord and it did the same thing. What is wrong with my laptop???