How can I save battery now that Nougat is out

[hiennhan12]

I have Sprint. And I have these Sprint apps.

I don't know which ones I should uninstall / or disable? I've disabled some. But there's apps like, Wifi calling and secure wifi app.

I'm trying keep certain apps from using up battery . But I think the system now that it upgraded to Nougat. Because stuff like Android system stuff are using the most percentage of battery.

 

[Rukbat]

An installed app doesn't use battery, only one you run does. Just don't run them.

Android System is "most of the phone", it's not a Sprint app.