How can we increase the battery timings of our laptop?

Battery will wear out after a while. The only thing you can try is emptying it completely and then charging it without using the laptop at the same time, once it's fully charged from fully empty, it should show the maximum stamina it can, which still definitely won't be 4 hours. Like Vershel said, the screen uses most power on your Laptop.

Once you put out the power plug, it usually automatically sets itself onto battery mode(usually slightly less powerful mode with less contrast). Try lowering the contrast. The more power you use(running games, movies, internet, some programs) the less the battery will last.

If you have Wifi or Bluetooth or IR or anything of that kind on, that will consume extra power. Some Operating Systems will consume more power than others! For example, Windows 7 is suspected to use up more battery than Windows XP, so if you have 7 on your laptop, try installing XP for some extra stamina.

Well unless you have your charger you cannot get it back to 4 hours. BUT you can save your battery life by doing the following:-dim your laptop screen -take out any CD/DVD's you may be using-make sure your laptop stays cool-close any unused programs in the background.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.