"It turned out other Android services including Android system and Android OS showed reduced battery consumption when the Facebook app was uninstalled. Those se

"It turned out other Android services including Android system and Android OS showed reduced battery consumption when the Facebook app was uninstalled. Those services act as a buffer for many apps to the outside world when running in the background. So while Facebook didn’t look like it was using that much power, it was actually just being displayed elsewhere in Android’s statistics." From: https://www.theguardian.com/technology/2016/feb/01/uninstalling-facebook-app-saves-up-to-20-of-android-battery-life https://www.theguardian.com/technology/2016/feb/01/uninstall...