HARDWARE TWEAKS

Screen brightness This is a huge power sink; it takes up to 50% of the available battery. The more the brightness, the more battery power that is consumed, so always reduce the brightness to the minimum. It is advisable to use your laptop screen only when needed.

Wireless and Bluetooth I wonder why people will just leave their wireless and bluetooth device on when not in use. They drain down your laptop battery considerably, so please, just turn them off.

Add more RAM Sounds unrelated!!! It is. The virtual memory feature of windows ensures that the hard disk memory is used when the system runs out of RAM which requires more battery power, so my advice, increase your RAM especially when you make use of high memory applications.

Remove unneeded peripherals USB flash drives, external hard drives, PC card modems, optical drives, iPod, phones should be ejected when not needed. Even when they are needed, find a way to reduce the amount of time they spend connected to your system. Transfer files from your external media to your local disk, cd/dvds should not be left spinning in your drive and use your touchpad instead of an external mouse.

for the full list, pls visit http://smartaminds..com/2012/04/how-to-boost-your-laptop-battery-life.html

good one u got there