I have an unlocked HTC One and I think I have some problems with the battery. For example, in the morning when I unplug it from charging and it's 100%, if I use it for like 5 minutes then the battery will drop by 6-7% and I don't think that's normal.
Then I was not at home today and I had like 19% and I decided to power it off. Then I turned it on after like 10 minutes, I had 7% left. I left it on for 10-15 minutes without using and it dropped to 2%. I turned it off again and then I turned it back on after like 5 minutes and it had 6%.
What is going on? Should I do a clean install of the software? I'm using ViperOne 6.2.1.