Downright terrible on my 930, along with unexplainable overheating it is the worst build I had on the battery aspect.
Battery life is same on 1520 but it does get warm . Think MS doesn't get it every build has do many issues .
Don't know how they will release it in 2 months ..
I really have almost nothing that good to say about 10549 on my Lumia 1020. A couple times a day I swear at it and think about going back to 8.1, then decide to stick it out hoping updates come quickly. After all, we have to be getting close to something stable if the 950 and 950 XL will ship in the next month or so. But I don't see it. Maybe it's specific to certain devices, but on the other hand, it's just too close to release for the kinds of things I'm seeing now.
For battery usage, I'm seeing maybe 6 to 8 hours at most. It just drains quickly no matter what. And I've yet to see anything useful from battery usage on the phone. This is what it always looks like:
View attachment 114596
Very horrible for me on a Lumia 1520. 3-4 hours of light use and it dies. I can barely get it to charge at a fast rate either. Have to go back to 8.1 for this to be usable for me.
Is the background apps control really work in this build? I remember in 10536 even I not allowed it to run in background I still receive notification and updating live tile in real time.Heavy use I'm getting like 4 hours. I can probably squeeze 6-8 with medium usage
Same on the Icon (929). I wish we had Task Manager/Resource Manager so that we could ID what process is exactly that is killing the batteries. Maybe after those programs get universalified.