I just read in a article to take care of laptop batteries, i even used it and experienced good result by using the following useful tips, given below.

1.Turn off Wi-Fi and BlueTooth

2.Don't play computer games, music or DVD movies

3.Adjust your screen brightness

4.Turn off Auto-save features in Microsoft Office and other applications.

5.Decrease or mute the Laptop Speaker Volume.

6.Clean your battery’s metal contacts every couple of months

7.Cut down on programs running in the background.

hope this helps for the laptop users.