Funny you say that, I updated my 1020 on Sunday, I always charge my phone overnight, I downloaded an app from the store and found I was at 30%!!! In less than 2 minutes. What's worse is that my phone gets super hot while charging. So yea, I'm getting severe battery drain. But what's more annoying is this stupid "no connection" everytime I wake up my phone!! I have to close the app and rr enter my search and wait for the data to engage! This happens all the time with full bars (lte/4g)! Annoying!