[HD2 Android Q&A, Help & Troubleshooting and Genera] Shatterv2:
As android builds are getting more and more closer to being daily builds, one of the standing issues that remains is battery life.

This thread is where posts concerning How to Save battery should go. NOT Questions, but suggestions. If your suggestion is one to look into, it will be added to the OP.

UPDATE

: You can now use ALL GOVERNORS For the CPU!​

(Read more to find out how) :)​

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

SetCPU​

SetCPU, is an app more commonly used for over/under clocking devices.

This short tutorial will show you how you get the app,

get it running, and of course save battery!​

*YOU NEED A ROOTFS.IMG THAT GRANTS YOU ROOT ACCESS!*

1. Get SetCPU

A. Download it from *HERE*. (The only XDA thread I could find for it)

OR

B. Support this great application and get it from the Android market by searching for SetCPU.

-----------------------------------------------------------------------------

2. Getting the App working

1. Once you have the application installed, launch it from your drawer and either grant it Root Permissions or it may auto-configure.

2. Hit Auto Detect Speeds.

3. It should show you the speeds your device it currently running at, now move over to [Profiles] and click Enable and if you want click on Notification.

-----------------------------------------------------------------------------

3. Make your profiles

1. Sleep Profile - 384 Max/245 Min- Interactive setting

(It may seem high, but this keeps it so that your device wakes up quickly)

2. Battery < 30

Max 614/460 Min- Interactive/Conservative Setting

*Try out the SetCPU Widget!*

If you have any personal settings that you think might be better than these please do post!

-----------------------------------------------------------------------------

UPDATE 9/15

​

ALL CPU Governors!

To use the modules use this kernel built from the GIT, and hit auto detect speeds on SetCPU again. Under the main tab choose Your preferred setting..

You can find what all the the kernels differ in in the further pages of this thread, I will update OP later. :)

-----------------------------------------------------------------------------

Advanced Tab

20000 Sampling Rate

30-50 Up Threshold (THIS IS THE KEY: This means when your CPU load hits 30%, it will scale up the mhz. If the phone still responds too slow for your taste, set this lower)

http://xdaforums.com/showthread.php?t=777921

Check Set on Boot (And Apply)

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Turning off Background Services and Adjusting Brightness

​

Things like Bluetooth, WiFi, Sync, GPS, and excessive brightness can really kill your battery.

A quick way to manage these settings is to hold down to add a widget on your home screen and choose [Power Widget].

This stock widget allows you to quickly see the service's your using, and the farthest one to your right allows you to switch between four brightness settings.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Using that new kernel link provided, you'll get a nice boost in standby time too! :D Enjoy!