Laptop battery maintenance guide

Batteries are consumable, has a limited life, General manufacturers for laptop battery warranty time ranging from three months to a year, Dell is following industry-standard one-year limited warranty. For batteries, proper use and the correct storage is the ability to significantly extend laptop battery life.

Several attention points used, battery.
1. Why, when using an external power supply, can do not need to take batteries?
(1) preventing overcharging of chips on the motherboard. When your battery charge to at 100%, charge laptop batteries control IC (FET) will stop charging the battery. We do not have to worry that it will damage the battery.
(2) the battery will avoid BIOS information is lost.
(3) prevent a sudden power loss data loss. 2. Prevent exposure, to prevent moisture, prevent erosion, to avoid battery of chemical liquid contact with the metal contacts a short circuit occurs.

3. Long-term without a notebook, how to save the battery? We encountered for some time without using the notebook, save the batteries should be charged, or need to drain power save?

Glittering electric activity of long-term rechargeable laptop batteries saving will make batteries losing or even self-lock and control circuit protection can no longer use, charged of long-term preservation is a security risk, is the ideal way to save power usage to around 40% and stored in a cool dry place, about 20 degrees Celsius is the ideal storage temperature. Of course best to take out the battery once a month, can guarantee good save state of the battery, and not let the power loss and damage the battery completely.
How to view the Dell battery power? (D610 battery, for example)

Remove the battery, battery labels, you can see five battery dian349cbd status lamp. Two bright, representatives 40% of power. Representative of iseedeadpeople power is sufficient, if 135 light, battery damage.

Second, how to extend laptop battery working time?
(1) adjust the screen brightness. How to: adjust battery laptop brightness, power press F2, adjust the Brightness of the Video in the BIOS.
Or a combination with fn+ down/up keys to quickly adjust brightness.


(2) open the CPU SpeedStep feature, you can significantly extend battery time; the SpeedStep Cpu features are enabled by default in the BIOS. When the battery is used, CPU toshiba laptop batteries will automatically reduced frequency used to achieve energy-saving purposes. If is not enabled, press F2, power on, into the BIOS found in Performance, set the Speedstep Enable is Enabled. (Legacy BIOS is Alt+P to the sixth page, modify the Intel SpeedStep)

(3) use of standby, Hibernate, and other functions. When a longer period of time without a computer, you can have the laptop on standby or Hibernate, save power and extend the life of the computer. (Tip: make sure display driver installation was successful, the power management options to be set. ）

To set power IBM laptop batteries management program in the WINDOWS, we can typically set to "portable/laptop" (Portable/Laptop).
At the same time suggested that they will use the battery, turn off monitor wait time to 5 minutes, so that when we are not actions within a period of time the notebook, it will direct black State, so that more power than the other screen saver are running.

(4) when using the battery, turn off wireless, Bluetooth, and infrared port as far as possible. At the same time removing peripherals do not want to use and avoid enabling 3D programs, games, and to reduce unnecessary battery consump