I was only able to get about an hour and a half out of the original battery. This battery kicks that up to about 3 or 4 hours on balanced power. It will prob be less if you are using a resource intensive program but more if you are just surfing the web or listening to music.
What can I say about this product, it's a battery. It works well. I have had it for about 2 weeks now and have not had any problems. It is not difficult to install.
Reasonably priced and the shipping was fantastic. Just got it so I can't say about the battery life. It did come partially charged. I am ordering another for a spare.
