Battery life is a common topic for laptop users. I have read many many posts about how to prolong a laptop battery life. Here are most popular tips that I know.

0 – If you want to use your A.C./D.C power (use power directly from a charger) you may consider these steps:

• Charge your battery full 100%
• Unplug charger
• Use battery power until I has about 45-50% life left.
• Turn off your laptop (certainly) and remove your battery (and pls keep the placeholder of the batter clean + dry )
• Place the battery in a cool place.
• Use your A.C/D.C power

Someone said that “Never remove a fully charged battery from laptop for a period over well about 1 month, because your battery will not be able to be charged again”. I have not test this tip yet, so I am not sure it is true or not.

1 – Keep your battery working in a cool place (at least < 30*C) (Li-on battery is also a chemical battery, it reacts to heat).

2 – Do not charge your batter until the battery has just 5-10% life left.

3- Turn off unnecessary functions as much as you can (blue-tooth, wifi… when you don’t use them)

4 – Using Linux OS (advanced config).

Most of these tips come from my favorite post: http://www.trap17.com/index.php/Pro-long-Laptop-Battery-Life_t64414.html