Hello. Today I put my Lumia 1020 to charge and after some time I saw that my phone is fully charged but I left it to charge even after that for about 15 mins. When I disconnected it from charger I had to restart phone, I wanted to play with cortana so I had to change region and language After restart I saw that my battery isn't fully charged. It was about 97% but few minutes ago, before I restarted phone it was 100% charged. Also I noticed that my battery drains quickly than it was before, when I had 8.0. I hope that's some bug or my phone's battery is going down :/