Boost your laptop’s battery life part1

1. Adjust your screen settings  Aside from playing complex games and  watching lots of videos, powering your PC s  screen is probably what drains your battery  the most. The brighter you set it, the faster  power will drain.  To change the brightness and set how long  the screen stays on when it s not being used,  go to Control Panel, Hardware and Sound  and click  Power options  then  Choose  when to turn off the display . Use the  dropdown menu options to specify how quickly the display should dim or turn off.  
   
2. Set your laptop to powersaving  mode  Windows laptops have three power  consumption settings: Performance, Battery  Saving and Balanced. Usually, your laptop  will be set up to use Balanced mode. To  switch to battery-saving mode, go to Control  Panel, System and Security and choose  Power Options, then if necessary click the  down arrow next to  Show additional  options  and tick the  Power saver  option  that appears.  
3. Turn off keyboard backlights  Backlit laptop keyboards look pretty,  but will add to the battery drain. If your  keyboard backlight comes on automatically  in the dark, then switch the room light on  so the ambient light sensor doesn t trigger.  On some models, the backlight can be  turned off via one of the function (F) keys. If  you don t have an such an option, you can  right-click the battery icon, click Windows  Mobility Center and switch off the backlight  or use the dropdown menu to set how long  the backlight stays on for when the  keyboard is not being used, or switch the  backlight off.  
4. Switch off Wi-Fi when  you re not using it  Two technologies in particular drain battery  power: Bluetooth and Wi-Fi. These  constantly look for other devices to connect  to, presenting a potential security risk (by  broadcasting their presence to other  networks) and using up energy  unnecessarily.  Most laptops have a hardware switch to  toggle Wi-Fi on and off. Look for a radio  mast icon on your laptop keyboard, or a  switch labelled  Wi-Fi  to disable Wi-Fi  when you don t need to get online or when  you re connected via Ethernet instead. If you  can t see a physical switch to turn on your  Wi-Fi connection, go to Control Panel, click  Network and Internet, Network and Sharing  Center and select  Change adapter settings .  
5. Prevent Bluetooth  running by default  Bluetooth is useful for conecting wirelessly devices in your  proximity, but it eats  up battery power. To  disable Bluetooth  when you re not  using it, click its icon  in the taskbar at the  bottom of your laptop  screen (use the up  arrow to show  hidden items if the  Bluetooth icon isn t  visible by default), then choose Open  Settings. Clear the  Allow Bluetooth devices  to find this computer  option.  To stop Bluetooth options loading by default  in Windows 7, go to Start, Control Panel and  type Device Manager into the search box  and click the Device Manager link. The  Bluetooth radio adapter should appear in  the component list. Right-click it and select  Disable to prevent it launching whenever  you switch on your laptop.  
6. Use Airplane mode in Windows 8  To switch off Bluetooth in Windows 8, go to  Settings, click  Change PC settings  at the  bottom of the screen, then click Wireless.  Either turn on  Airplane mode  (which  disables email and web access as well as  wireless connections) or click the toggles  next to Wi-Fi and Bluetooth on the same  screen to turn them off.