Merge pull request #668 from AdguardTeam/battery-new

battery new #641

Author: NataKiss

docs/adguard-for-android/solving-problems/battery.md

@@ -23,6 +23,12 @@ You can access it by navigating to *Statistics* → *Battery usage*.
 
 Inside you will find a chart that shows the AdGuard battery resource consumption within the last 24 hours, with an option to get more detailed hour-to-hour data by tapping on the chart. Besides that, there’s also a numeric breakdown of the relevant data and a short technical explanation.
 
+There are several other parameters below the chart: *CPU foreground*, *CPU background*, *Mobile data usage*, and *Wi-Fi data usage*.
+
+*CPU foreground* and *CPU background* show how much CPU time is used by AdGuard when the app is active or running in the background.
+
+And with *Mobile data usage* and *Wi-Fi data usage*, you can see how much traffic AdGuard consumed when your phone was using mobile Internet or connected to Wi-Fi.
+
 ### How much battery resource does AdGuard really consume?
 
 First, let us lay down a bit of theory and links with necessary data.