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Second, how to extend laptop battery as much as possible working time? (1) lower the screen brightness. How to adjust the brightness using the laptop battery, start by F2, into the BIOS to adjust the Brightness Video items. Or use the fn + down / up key combinations quickly adjust brightness. Old BIOS details, please refer to: http://support1.ap.dell.com/cn/zh/forum/thread.asp?fid=25&tid=45151 (2) Open the CPU speedstep feature, you can greatly extend the battery life; Cpu's speedstep BIOS function is enabled by default. When using batteries, cpu frequency used is automatically reduced to save energy. If not enabled, please start by F2, enter BIOS found in Performance, set Speedstep Enable to Enabled. (Old BIOS is the Alt + P to the sixth page, modify the intel speedstep) (3) The use of standby, sleep and other functions. When a longer time without the computer, allowing notebook standby or hibernation, saving the computer power to extend the life of another. (Tips: Make sure video card drivers installed successfully, the power management options can be set.) In WINDOWS procedures on power management settings, we generally can be set to "Portable / Laptop" (Portable / Laptop). Also suggest that you will use the battery, turn off the monitor wait time is set to 5 minutes, so that when we do not operate the notebook for some time, will direct a black screen state, so other than the screen saver is running to be more power. (4) when using the battery as much as possible off the wireless, Bluetooth and infrared ports. Remove peripherals when not in use at the same time and to avoid opening large 3D programs, games, etc., to reduce unnecessary battery consumption. Laptop Battery ACER Laptop Battery APPLE Laptop Battery DELL Laptop BatteryHP Laptop Battery LG Laptop Battery LENOVO Laptop Battery IBM Laptop Battery SONY Laptop Battery TOSHIBA Laptop Battery
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