Why is my Android OS using an inordinate amount of battery in 5.1?

[elchip]

"Android OS" using an inordinate amount of battery in 5.1

I thought 5.1 would solve some battery issues I was having on my Nexus 6, but it seems to only have moved them.

My screen has been on for 2.5 hours today, and at 10% it's only the SECOND biggest consumer of battery life... After Android OS at 11%.

Android OS has been busy:

• 36m+ CPU time
• 10m+ keep awake
• 2h+ mobile radio active
• 3200+ mobile packets received, 16000+ sent
• 8200+ Wi-Fi packets received, 5400+ sent

I'm not rooted (nor do I care to be, really) so I don't have a lot of fine detail, but GSam pegs Android System at 9%, and Kernel at 5.2%.

This seems awfully high. What is the OS doing? I feel that I've made some battery saving changes, like limiting location to Device Only, turning off Wi-Fi when unneeded, etc... But it doesn't help much.

This has persisted through multiple reboots and factory resets. Anyone else experienced this? Any resolution?

 

[Golfdriver97]

Re: "Android OS" using an inordinate amount of battery in 5.1

When did you get 5.1?

 

[elchip]

Re: "Android OS" using an inordinate amount of battery in 5.1

About two weeks ago, give or take.

 

[gone down south]

Re: "Android OS" using an inordinate amount of battery in 5.1

Have you been using your phone during this period? percentages don't really tell you much.

 

[tonyr6]

Re: "Android OS" using an inordinate amount of battery in 5.1

There going to tell you here to run a partition cache wipe which is just a placebo effect as I did it more times than I can remember. Really only a reboot will fix it. You can do a hard reboot hold down the power button until the Google logo pop' s up or you can hold down the power button until the turn off screen dialog comes on then press it. When it shuts off turn it back on again right away then battery drain should be fine for a few days at least. I reboot mine at least every 3 days as I had to yesterday sudden rapid battery drain.

 

[elchip]

Re: "Android OS" using an inordinate amount of battery in 5.1

Have you been using your phone during this period? percentages don't really tell you much.

Well, I think the screen on time I presented is a good indicator.

Most of the screen on time would be Chrome or mail, with a few random lightweight apps (i.e. not games or videos and such).