I moved your post here to avoid duplicate topics.
There is also a german topic about battery life issues after the upgrade and there it seems for most people Wifi is the culprit and always first in the list in Settings > Battery.
I moved your post here to avoid duplicate topics.
There is also a german topic about battery life issues after the upgrade and there it seems for most people Wifi is the culprit and always first in the list in Settings > Battery.