[Nexus 6P Q&A, Help & Troubleshooting] Raiden823:
This is for the people who have the Nougat Battery Bug.

Disclaimer:

By no means am I a developer. I not responsible for anything that may happen to your phone as a result of installing custom roms and/or kernels, mods. You do so at your own risk and take the responsibility upon yourself.

Just a little back story.

I bouncing around 2 MM ROMS. Pure Nexus and Resurrection Remix. Till MegaPixel6P came out in early December. Even though it was a N 7.1.1 build. I never experienced any of the N battery bugs. I ran with MegaPixel6P till i notice that it wasn't being updated. I found out that Lineage OS was available for the 6P. So I gave Lineage a try. I clean installed the rom, gapps & mods. Setup the phone as usual and downloaded/installed all the apps I use. The next few days I used the phone as I normally would. As I used the phone. I noticed the fast battery drain. Then I noticed the battery percentage going down either by 1% or 2%. Finally my battery when it's between 8-20% would automatically die. When i'd plug it in and start the phone the percentage wouldn't be at 1% but at the percentage it would die. I tried to doing another clean install, but the bug was still there. I then started reading up on the bug. On the web, reddit, xda.... I was fed up. So I went back to complete stock/rooted. Still same bug. During all this I would get around 5h 30m battery life. With 1h 50m of sot.

Currently I'm on Pure Nexus. For the past week I've experimented with battery life fixes, until I came up with my current configuration.

For this bug fix I want to thank the following Dev's:

@BeansTown106 - Pure Nexus Rom

@The Flash - [UNOFFICIAL] TWRP 3.0.3-x with F2FS SUPPORT, FLASH Kernel

@HTC_Phone - F2FS conversion procedure

@fapste - [KERNEL PROFILE] WINGOKU Interactive Governor Profile For Battery Life & Performance

@flar2 - EX Kernel Manager

@ravinder0003 - [Mod][6.x/7.x] Xthermal Mod -Fast Charging + Some CPU/GPU Tweaks

F2FS Conversion Procedure:

*Flash [UNOFFICIAL] TWRP 3.0.3-x with F2FS SUPPORT

*Flash PN (or any rom that supports F2FS), Gapps recommended by rom Dev, Xthermal Mod, SuperSU v2.79 SR3, f2fs compatible kernel (I used Flash Kernel)

*Boot ROM and go through initial setup

*Reboot to recovery, back up /data, move backup to computer or safe place

*Reboot recovery and use Flash's custom TWRP for f2fs

*Wipe/Format data and cache to f2fs

*Reboot recovery

*Move backup to phone

*Go to settings and check "Use rm -rf instead of formatting"

*Restore data backup

*Reboot recovery to make sure that the partitions are still f2fs

*Reboot system

*Download/Install EX Kernel Manager, open and grant root access

*Download WINGOKU Interactive Governor Profile, remove the .txt by renaming it

*Cut/copy file to sdcard> ElementalX> gov_profiles

*Open EX Kernel Manager, From the side panel go to CPU change both CPU governors Little/Big Cluster to Interactive, go into Governor options and load WINGOKU Profile

*Install/restore your apps

*Profit

Links:

[ROM][6P][7.1.1_r21]★ Pure Nexus ★ Substratum | Fi | WiFi Calling ★[02/15/17]

https://xdaforums.com/nexus-6p/development/rom-pure-nexus-layers-fi-wifi-calling-t3244563

[UNOFFICIAL] TWRP 3.0.3-x with F2FS SUPPORT, FLASH Kernel

https://xdaforums.com/nexus-6p/development/unofficial-twrp-3-0-3-x-f2fs-support-t3543450

http://nchancellor.net/Downloads/Kernels/

[KERNEL PROFILE] WINGOKU Interactive Governor Profile For Battery Life & Performance

https://xdaforums.com/nexus-6p/general/kernel-profile-interactive-governor-t3550620

[Mod][6.x/7.x] Xthermal Mod -Fast Charging + Some CPU/GPU Tweaks

https://xdaforums.com/nexus-6p/orig-development/xthermal-mod-fast-charging-cpu-gpu-t3433784

After all said and done. All issues with the Nougat Battery Bug are resolved. No more fast draining battery, percentage dropping by 2%, and no more battery suddenly dropping to zero. now i'm getting nearly 6 hours of sot. This was achieved using Greenify and Servicely to prevent apps from waking. This has worked on my phone. I hope this works/helps all of you having this Nougat Battery Bug. Let me know if this has worked for someone else.

Thank You for your time.

raiden823

Again, I am in no way a dev.