Originally Posted by asbanoglou
Can you please post a photo with the battery usage of your phone and also download if you dont have already a wakelock detector app from play store and post a screenshot of that too.
I believe the excessive drain was due to the fact that the sd card was constantly ejected by the OS. Seems to be a common issue.
So I did another long format and a chkdsk and it seems to have stopped doing that.
Also MediaStorage service was draining a lot, same on my old S3 so I have stopped it.
Since then things seem to have improved.
I'm sure there are way more thing I can turn off from boot that don't do anything useful but not sure which they are.