I just traded for an iPhone 6s and it also came with an Apple smart battery case. I have looked online and tried to find an answer but haven't had any luck so I thought I would try here. Is it bad to keep your iPhone in this case all the time since it constantly keeps it at 100% and doesn't let it drain until the case dies? Should I and use another case until I need juice? The problem with that is that I really don't want to carry 2 cases. Thanks for any input.