I have a Lumia 1020 on att and I felt the battery was draining faster than my Lumia 520. I have been using 1020 for maybe 3 weeks now. I updated it to WP 8.1 preview and reset it and and restored the backup of the 520. I do feel the battery is not upto par to even the Lumia 520. I have disabled most of the background tasks hoping it will last long. It drains 15-20% battery when I'm using it to read WP central or other apps and not even playing games. In the battery sense settings I saw the phone app on top using all the battery today and I have not even used to make a call. Is somebody else also having this. If not how do I fix it. The phone app might be drawing battery even right now when I'm using the WP central app to post this. There is no background use but just fore ground use and the bar is like full. Help please. Thank you