I have been struggling with many of the same battery issues that have been posted here, through Amber and now Black. In the last couple of days, though, I have significantly improved my battery life by explicitly shutting down the cellular data connection when wifi is connected. Everything I have read says that the device will use wifi whenever it is connected, but it is clear to me that there are some apps or tiles that persist in using the cellular connection even though wifi is connected. This was verified through the battery performance app that showed I was continuing to use cellular data even when I was at home or work with a wifi connection.
I have now shut off cellular data when in those locations, and I am seeing significantly improved battery performance. It's worked for me - hope it works for some of you.
I have now shut off cellular data when in those locations, and I am seeing significantly improved battery performance. It's worked for me - hope it works for some of you.