Help HTC One M8 Draining Battery

[Paulsol]

In last few days my HTC One M8 is going from 100% to 0% in about 5 hours whereas previously was lasting a day. I have downloaded GSam Battery Monitor and it says:-

Used 99% in 5 17m and app usage was 97% of that. When I drill down get following list:-

Andriod System - 37%
Kernel (Andriod OS) - 19.8%
System () - 18%
Email + - 6%
HTC Blinkfeed - 2.3%

and so on

Clearly the first 3 are draining the battery and I have enclosed text files of the export from GSam.

Any help greatly appreciated.

Thanks

Paul

 

[swerver32]

I don't know what is wrong but I know I was having similar issues, battery life was great for a while then after an update or for whatever reason, it started draining fast and getting hot. Did a factory reset and now the phone is back to it's old, long-lasting-battery self.