Samsung mobile phone battery is draining very fast after the UI update of 26th January. This is pathetic. From last two days, when I go to sleep I have around 50% battery and when I wake up my mobile is switched off due to low battery. 

Kindly resolve this pathetic issue soon else I need to switch to iphone in next 2 days.

Samsung sucks. 

I need to restore my software to the older version immediately.