The battery lasts for about 2 hours of normal use, so it probably will go for 3-4 hours on "Power Saver" usage. While this isn't an incredible performance, it is better than the original battery.

• How did the image on site compare with the actual product? Same
• Was the product free of any manufacturer defects? Yes
• Please tell us about the quality of the product. Good quality overall - it does what a battery is supposed to do!