Lot will think how improve the performance of battery for those here is the source

Improve your laptop’s battery performance with Aerofoil

 

Aerofoil is a tiny open source utility which allows the user to easily turn off aero glass effect in Windows Vista and Windows 7 operating systems and save the battery power. It automatically disables aero glass effect when laptop is not connected to the external power supply and brings everything back to normal when it is connected to external power supply.

Aerofoil extends Vista and Windows 7 notebook battery life by:

§  Allowing you to manually disable Aero Glass.

§  Optionally managing Aero Glass user interface.

§  Optionally managing sound muting.

§  Optionally managing your chosen power plans.

§  Optionally managing Windows Sidebar.

§  Optionally showing a quick hibernate button.

§  Changing icon color to show whether on battery or AC.

Download AeroFoil 1.5.0