Lumia 950 battery drains rapidly

I'm curious if the factory reset does anything for you.  I'm having the exact same problem as you.

I'm in the exact same boat; I was loving my 950 until 4-5 days ago.   Now that I'm paying more attention I'm noticing the wifi and cellular icons are always showing outbound traffic.  Also, for the last two days it's telling me there is an update (.1029) but it is stuck at 0% downloaded and I also noticed that for the last 2 days I have 5 store apps that needed to be updated but they are all pending. 

I think I am going to resort to a factory reset.

This does not help on my phone..

Yeah, I've been having this issue as well. At first, I thought that this was just the transition from my monster 1520 to the 950, but its heartening to know that I'm not alone on this.

I've also had the heat issues mentioned, bot during charging and general use. It gets so bad that, while only watching videos, the phone will crash and restart. This happened four times to me today. This was not an issue in either my 1520, or my old 700(?).

Dunno if the usb 3.1 standard is to blame, but I would rather have a slow charge that lasted the day than have to carry around an external battery pack to classes with me.

Well, 40% left after 9 hours doesn't sound too great. After 19 hours, maybe. Previous Lumias I have owned could go for days without charging if I didn't read/browse a lot while commuting.

Today, again after very light use, I am still surprised to see that the screen accounts for 60% of the power drain. Is it Glance, although the phone has mostly been in my pocket? Is the LED backlight really that expensive? Does the screen statistic include GPU, and does that in turn mean that it is running even if the screen is switched off (which would indicate some kind of software error)?

I hope that someone is hard at work on this problem, because right now the phone won't last me through the day if I use it a bit more heavily (which has never been a problem before).