HUGE battery drain GS7E So, as I say in the title, I have a GIANT battery drain proble: the battery will lose like 30-60% while idle and in airplane mode. Same but worse when listening to music (Spotify and LTE). 

Yesterday night (Nov. 28-29) as it was charging (extremely) slowly ('7 hours 11 min until fully charged'), it decided to stop charging by itself and discharge fast (when obviously not using it) until 5 PM.

See attached image for details:


Annotated screenshot (click for larger variant)
First of all, try uninstalling Facebook, which is using the most battery according to your statistics. You could also try to reduce your screen brightness and use a dark, static wallpaper.

Slow battery charging can indicate a faulty battery. Try to charge your battery when the device is OFF and if the battery is still charging slowly, you should think of replacing it.