NEW: How to maintain your laptop battery 2010

The notebook is more and more how to properly maintain your laptop battery is also more and more people are concerned about this issue will be about the content of this field.
: Notebook battery without having to run out of the power before charging
Notebook batteries are lithium batteries, lithium batteries, run out of battery again for a long time filled with do not have any role, or even harmful. Because lithium does not exist in the so-called "cache effect", only the early nickel batteries have this feature. Laptop battery life in general with the man-made damage, or natural life. Basically, the battery life are fixed 300-600 charge and discharge times, generally available 2 years.
: When the hp power adapter is connected, the battery can pull or not pull
Pull and pull depends on the actual usage: Connect the DC power at the same time do not disconnect the battery and the battery does no harm, because the battery is fully charged, will not accept any electricity into the power will be directly to the laptop power supply supply system. But when the laptop high-speed operation, the internal overheating is best to remove the battery, otherwise it is harmful.
: How correctly to the notebook battery charge
Should avoid the battery is run out of run out of recharge, because this will give the hp laptop battery a lot of pressure resulting in damage. A more feasible approach is to charge about 20-30% of power remaining. In fact the notebook lithium battery in the number of "light / charge" is limited, all used to recharge will significantly shorten the battery life. At the same time, the battery should be charged in a dry place, Also note that the heat problem, which is the enemy of the battery.
Tip:
The use of mobile phone battery with the use of laptop battery for hp pavilion dv4-5000 is not the same, a lot of people may experience in the use of mobile phone battery to determine that the laptop battery should be fully used up recharge, this idea wrong.
Laptop batteries: Long-term use how to save
The laptop battery is to put the photoelectric save or should be filled with the power to save? Put the photoelectric long-term preservation of the batteries will lose activity, and even lead to the control circuit protection self-locking and can no longer use fully charged, long-term preservation will bring security risks, the best way to save is the will power to about 40% and then stored in a cool, dry place, about 20 degrees Celsius is the ideal storage temperature. Of course, the best month to take the battery out with time, can guarantee the battery good state of preservation, but not so the battery is completely lost and damage the battery.
: Some measures of working hours to extend laptop battery
1> to reduce the brightness of the screen: you can use the fn + down / up key combination to quickly adjust brightness (specific fn + which keys need to see their own laptop).
2> use of standby, sleep and other functions: a long time without a computer, notebook standby or hibernate, saving power and extending the use of computers
Life expectancy.
> Open the cpu speedstep functionality can greatly extend the hp elitebook 8540p laptop battery working time: CPU speedstep function is the default in the bios to start when using the battery, cpu will automatically underclock to use to save energy. If not open, can boot into the BIOS, press F2 to find the Performance settings
Speedstep Enable to Enabled.
4> when using the battery, try to turn off the wireless, Bluetooth and infrared port. Removed without the use of peripherals and avoid large 3D program is enabled,
Games, to reduce unnecessary battery consumption.