How To Reduce Android System Battery Usage. Finally think I found a way to dramatically reduce the toll Android System takes on battery life. Download EZ Package Disabler Samsung from the Play Store.
Look for IQService at the bottom on the list and tap the check so it shows as disabled. Find Android System in the list of apps then select Manage. Turn off high-drain features such as WiFi Bluetooth and hotspots when not needed.
The phone will show a battery icon and the word charge.
This is probably the most suggested solution for this battery drain. To do this go to Settings - Apps and notifications. Switching on Maximum power saving will strip your device down to just the essential apps and services you use. Replace the battery and cover.
