Battery draining extremely quickly Galaxy S7 My phones battery was draining extremely quickly a few moments ago, around 1% per 2 seconds. It's been doing this fairly often but when I go to device management and clean everything it usually stops draining.

This time though, the battery kept on being chugged and I couldn't find any explanation as to why it would get drained like that, everything was asleep or off. Even after turning off and on my device, the battery kept going down and the phone kept getting hotter and hotter.

Would any one know what else I could do? I feel as though I tried everything possible.

(in case this happens again since it randomly decided to stop chugging.)

Thanks,

to note: 


Device software is up to date.
Device is 1 1/2 years old.
This has being a common problem with S6 due to update to marshmallow, I believe this should also work for your S7.

Wipe your phone cache or system partition by following the steps below;


  Go to Settings 
  
  Storage and USB 
  
  Cached Data 
  
  OK. This should wipe your system partition.


Or you can also do the same thing from recovery mode by following the steps bellow:


  
  Turn off your Galaxy S7.
  Press and hold Power
  When ‘Samsung Galaxy S7’ appears, immediately release the Power key and then press and hold the Volume Down button to access Fastboot 
  Use the volume buttons to highlight Recovery and press Power to confirm.
  If you see the Android robot, press Power, then Volume up briefly to access Recovery.
  Scroll down to Wipe cache partition and hit Power to confirm.
  Scroll down to Yes and hit Power to confirm.
  Reboot
  


If the problem persists, you can also clear the app cache for your device and the last resort is to do a full backup and perform a factory reset. Wiping your device and restoring your apps and data is one of the simplest and best ways to avoid any weirdness battery drain and general system performance issues.