Hello! Right now you will find out how to improve your laptops battery life! This can be done with nearly every laptop!
Number one! You should go under your battery settings on the task-bar (If you're running windows xp and up, I believe) and make sure you select power saver mode.
-This will lower your computers abilities and standards
-This will lower your computer screen brightness (unless you change it)
-This will also make your computer slower but it will save you battery life!
Number two! You should turn your computer on airplane mode (If your computer can do that) because most laptops automatically search for open and/or closed networks to connect to, and its just easier on the laptop, it being it doesn't search over and over again...
Number three! IF YOU ARE TRYING TO SAVE BATTERY LIFE, MAKE SURE YOU HAVE BACK-LIT KEYBOARD OFF (If your laptop has that installed) AND YOU SHOULD ALWAYS ONLY HAVE TWO LOW POWER CONSUMING APPS OPEN AT ONCE MAX.(This will help out a lot)AND LASTLY, SET YOUR SCREEN TO A LOWER BRIGHTNESS, THIS WILL HELP YOU A LOT!!!