Yeah. Something is very wrong with battery percentage level.
Yesterday within 30 minutes I had discharge of my battery from 10% to 2% during listening to youtube via Car Audio Bluetooth. Then I was driving for about another 30minutes and music continue to working. Then I came home, noticed that it's 1% of battery and put my phone on table with hope that it will be completely discharged and switched off. AOD was activated by the way and my phone was lie on table for around 50 minutes with WiFi , Lte, BT, GPS, NFC switched on and with AOD. And after 50 minutes phone was still alive (switched on) with same 1%...