How to turn on CS Battery Saver (4 hours):

 1. Open a Command Prompt
 2. Make sure power scheme to be set is active by "powercfg -l"
 3. Execute SetCsBatterySaver_4h.bat

Note1: You can confirm current Battery settings by ShowBatterySettings.bat 
Note2: You can restore all power schemes settings to factory default by RestoreAllPowerPlans.bat (Requires admin privilege)
