I don't know how much power my system consuming and My UPS also behaves in a strange way. So I googled and stopped at Ubuntu Power Management. Installed
powertop and everything is fine.
As mentioned in wiki documentation if I use
sudo pm-powersave true it will enter into low power mode, so because of doing like this I can save some power but is there any type of problem I am going to face?
Bottom line, is there any disadvantage now or in future if I turn on low power mode?