[AT&T, Rogers HTC One X, Telstra One XL] Packer2058:
Beware:

These are my settings and have worked for me and a few other family/friends who own HTC One X's. What may work for one person may not work for everyone. Because different people use their phone differently throughout the day. But with these tips and settings each person was able to maximize the use and efficiency of the battery (including me).

ON AVERAGE I GET : 3-4 HOURS SCREEN TIME, ON ALL DAY MODERATE TO HEAVY USAGE :) , MY BEST WAS 5 HRS AT ONE POINT!

(Text Messaging, 1 hour Phone Calls, Camera, Music, Facebook, Email, WebBrowsing, Twitter, Spotify, PULSE News, ESPN Scorecenter)

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Before we start If you are on OTA 2.20 Update make sure you root your phone using this guide (you can only do this if you saved the "Unlock_code.bin" from the 1.85 root method.

http://xdaforums.com/showthread.php?t=1812039 CREDIT TO: ERASTE

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After you complete the above requirement. Then move onto the tips/tricks below

APPS NEEDED: BetterBatteryStats (root required), BatteryCalibration (root required), Quick Boot (root required), SetCPU (root required), SmartSync Disabler, TitaniumBackup (root required), Watchdog

Within Settings:

1. Wi-Fi:

Go to Advanced -->

- Turn off "Network Notification Setting"

- Select Always for "Keep Wi-Fi on during Sleep"

- Un-check "Best Wi-Fi Performance)

2. Still inside settings click on "More" under "Mobile Network"

- Make Sure "NFC" is set to OFF

3. In Accounts and Sync

- Make sure you turn off any sync settings you dont need. I usually leave DropBox, Facebook, Weather, Google on.

4. In Location

- Turn off GPS Satellites.

- I keep 1st and the 3rd setting checked usually all the time.

5. Display, Gestures, & buttons

- (This is Personal Choice) I uncheck "Animation"

- Uncheck "HTC gestures"

6. Sound

- Uncheck "Quiet ring on pickup" , "Pocket Mode", "Flip for speaker"

- Also uncheck "Dial pad touch tones", "Touch Sounds", "Screen lock sound" , "Vibrate feedback" .

7. Power

- Uncheck "Fast boot"

8. Language & keyboard

- Inside "HTC Sense Input" setting, Turn off "Sound feedback" , "Vibration feedback" , "Trace keyboard" , "Toggle keboards"

EXIT OUT OF SETTINGS

NOW:

- If you have the Sense UI Weather/Clock Widget good!, if not add the Widget to your Homescreen for this part

-- Click on the Cloud or Weather Icon on the Weather/Clock Widget ... THEN click on "Menu" --> Then click on "Edit" = now erase any of the other locations for weather ... this reduces the amount of places the weather has to sync to.

--- NEXT ... Go back to the home screen and now on the Weather/Clock Widget this time click on the Time ... THEN at the bottom click on "World Clock" ---> Then click on "Edit" at the top within the "World Clock" screen ---> then delete the other World Times ...

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Download "SmartSync Disabler"

- Check the setting "Disable smartsync" (smartsync is apparently some glitch that causes your phone to drain overnight, look into it...)

- Restart your phone

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Download "Watchdog"

- Configure it and leave it be; this app will tell you when there are rogue apps running wild in the background.

-- After you are notified about the rogue app you can go and close it :) .... very useful to minimize stray apps causing battery drain

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Download "SetCPU"

- Set the "max" to "1134" (value I use, and i experience no lag .... this underclocks your phone without noticable lag or performance issues)

- The "min" is by default at "384" , leave it at that

- Check the setting "Set on Boot"

- At the bottom there are 2 little tabs:

1st tab: select "ondemand"

2nd tab: select "noop"

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Download "TitaniumBackup" (I use pro version)

- Click on the "Backup/Restore" tab

-- Once inside the tab find and freeze any bloatware apps/signed apps that you dont need our use ... just longpress on any useless Apps and choose

--- For example I froze: YellowPages, ATT Navigator, Car, CityID, MOG, HTC Hub, Live TV, Top HD Games...etc...

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Download "QuickBoot"

- Use this to quickly reboot or power down just by clicking on the app without having to hold on the power button.

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Download "BatteryCalibration"

- Charge the battery to 100%

- Once you are at a 100%, open this APP

- If you see "100%" in white bold letters --> Then click on Calibrate ---> Then unplug your phone and use

UR BATTERY IS NOW CALIBRATED :)

USE THIS AFTER SWITCHING ROMS and ETC ...

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Download "BetterBatteryStats"

- Use this app to check which apps are causing a lot of drain

- Look up the guide on how to use this APP to hone your "wakelocks"

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HOPE THIS GUIDE AND STEPS HELP YOU AS MUCH AS IT DID ME, MY FAMILY AND FRIENDS!

:)