So been a few day, all of a sudden my battery has been draining rapidly even when I am not using it. My battery drains at 1% every half an hour when its in complete stand by, and nearly at 5% every five even when I am just scrolling through the phone, i hard reset my phone and it brought no change, it was still draining bad. Then I took it to nokia care and they told me they updated something yet it still didn't change anything. I charged my cell phone to 100 a couple of hours ago and after 15 mins of removing the charger, the battery was down to 94, in JUST 15 mins. Then I realised that I got an update after rolling into dev preview (.155) and i think after that I havbe been facing this issue. Anybody else experiencing this? Any idea what's the case?