The power saving mode only reduces brightness of your display slightly ...and turns off some of the radios that are inbuilt...also it reduces the cpu usage...these all contribute to saving battery...or at least allowing it to last till the last possible moment..
Having it on all the time...even while charging is no problem at all...it has no affect...
but since it does reduce cpu power... there is a chance of lag in some games and stuff like that...i say it with personal experience... also if you are always checking benchmark scores...it will reduce....so you can use the power saving mode wisely....once again..no harm in using it all the time hope this helps
-§ADESH- ® Street Magic At Its Best
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ther is a difference when turning on/off the power saving mode..it limits your CPU frequency to 1200mhz rather than getting 1600mhz on your CPU..try installing Cool Tool from playstore so you can check..
Don't Force people to "Thank You". they will, if you really helped them out..
PHONE: Samsung Galaxy Note 2 GT-N7100
ROOT ACCESS: Yes
RECOVERY: Philz Touch 6.41.6
ANDROID VERSION: 4.4.2
KERNEL VERSION: Nadia R4, 400~1600mhz, Governor: lulzactiveq
BASEBAND: N7100XXUFND3 v5+
BUILD: DN3 v5.2 Full with Some S5 apps
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