Phonemanager is build to take control over the apps. From there you can manage the permissions you give tot the apps, also he closes the apps you do not want etc.... The problem is that it is not working correctly , this is why many normal users complain the notifications from whattsup or messenger do not arrive unless you wake up the phone....
System apps are basically imune to the Phone Manager app ..... Also the phone comsumes more power with Phone Manager because the apps wake up, the Pgone Manager closes it and so on..... It is like the old Task Managers on android before 4.x , people beleave it was helping but actually it is draining power....
I am using it like this for more then 2 months and it is perfect.
Beware : do not unisntall it !!! Jest freeze it !
Also 2 other tricks for battery help : put display resolution to 720p and dpi to 300 or 320 from k settings.... You will be amazed how much battery u`ll save...
System apps are basically imune to the Phone Manager app ..... Also the phone comsumes more power with Phone Manager because the apps wake up, the Pgone Manager closes it and so on..... It is like the old Task Managers on android before 4.x , people beleave it was helping but actually it is draining power....
I am using it like this for more then 2 months and it is perfect.
Beware : do not unisntall it !!! Jest freeze it !
Also 2 other tricks for battery help : put display resolution to 720p and dpi to 300 or 320 from k settings.... You will be amazed how much battery u`ll save...