Question about App Usage.

[venom0706]

I want to know if Google Play Services drains my battery. When I go to Battery usage, I am a bit confused as each app says "Screen usage: # mins".

Is that the overall app usage or only when I was on my phone and the screen was on? I want to know if the app is draining anything on the background, when the phone is away and screen is off.

So can someone please explain how to understand App Usage? On my previous S7E, the app simply showed its overall usage, without saying anything like "screen usage", etc.

Thank you.

 

[Rukbat]

If you "end" your apps by pressing the Home button, they keep using battery. If you end them with the Back key they stop.

 

[venom0706]

If you "end" your apps by pressing the Home button, they keep using battery. If you end them with the Back key they stop.

Thank you. I already did close them by opening the list of apps (far right bottom "square" button) and swiping away each one by one from there.

My question has to do with how to interpret App Usage.