battery sense is not telling the whole story.For me it fortunately only drains when Cortana is active (in foreground and doing stuff for me). I can see this in Battery Sense, Cortana Active Time is the biggest battery hog there, whereas Cortana in background doesn't need more than other background tasks.
Lumia 1020.
I activated Cortana yesterday and my battery is draining like crazy (about 13% per hour). This morning I deactivated her and the battery consumption immediately dropped to 2% per hour.
Anybody else has this issue (I have a Lumia 1020)?
