I have noticed that every time I turn on my case, since I upgraded to iOS 10 beta that is, my battery case has been having a couple of issues. For one, it will drain quickly. It charges the phone fine, but it depletes way too quickly. Another thing I've noticed is that it seems to be heating up enough to leave a mark on my leg through my pants. I don't seem to notice it at the time, though, which is confusing. It's only when I get ready for bed that I notice there's a nice red spot on my leg where the phone was. Anyone else having this issue or have any ideas what might be causing it? The only thing I can think of is that it thinks my phone is charging and might be doing heavy calculations for the things like with photos.