Settings to Maximize Battery Life, Minimize CPU Usage and Minimize HD Usage.

Device Manager and Power Settings to tweak to boost Battery/overall system longevity (I Hope): 

  Device Manager 

Start ...“Network adapters” -> Wireless-AC ->Advanced tab : change the “Preferred Band” to 5.2 GHz

then ->“Roaming Aggressiveness” : lower setting 

then “Power Management” -> “Allow the computer to turn off this device to save power” : checked. ...

…Ethernet Connection I

 “Enable PME” is set to enabled,

“Energy Efficient Ethernet” is set to on

 “System Idle Power Saver” is set to enabled.

“Power Management” tab and make sure again that the

“Allow the computer to turn off this device to save power” is checked again.

Power Plans

 “Adjust plan brightness” to the minimum usable brightness,

Change advanced power settings”. 

In “Desktop background settings” -> “Slide show” 

Rest Below