Conserving battery power
●Select low
●Turn off wireless and local area network (LAN) connections and exit modem applications when you are not using them.
●Disconnect external devices that are not plugged into an external power source, when you are not using them.
●Stop, disable, or remove any external media cards that you are not using.
●Use the fn+f7 and fn+f8 hotkeys to adjust screen brightness as needed.
●If you leave your work, initiate Sleep or Hibernation, or shut down the computer.
18 Chapter 3 Using battery power