Tip I got elsewhere??

[Putty]

Anyone seen this or know if it works??

TIP: Go to the Dial Pad and type *#*#4636#*#* and then go to battery history look for processes running at 100%. Click on "Other Usage" and change it to "Partial Wake Usage" items with a blue line running all the way across are the processes keeping your phone from going to sleep therefore draining your battery.

 

[ScorpDX]

Works well if you have a sudden battery issue that hasn't presented itself before. Helps to figure out which app is doing it.