[HTC One X] domsch1988:
domsch's "What is burning my Battery"-Guide​

Content

Disclaimer

Introduction

Setting your goals

My Setup

General Idea

Preparation

Things you'll need

What the apps are for

Reseting battery stats

A starting point

Phone settings

Finding apps that burn

CPU Settings

Different kernels

Conclusion and wrap-up

Disclaimer

A long time ago in a galaxy far, far away...

Recently i installed ICJ. Since my Battery started decreasing quiet fast, i remembered a guide from the good old Desire days. It was a really good, indepth view on how to determin

what burns your Battery and how to set up your phone perfectly.

In the last view days i tried applying some of these tips and found them more or less usefull.

Since HOX is a Tegra device some things are handled differently. So i thought it might be time to update this a bit and let you participate in my hunt for the best battery performance.

First of: I couldn't find the original guide. So no link here (sorry). I will correct this if i find the right thread. This is all my own work! I don't use any part of another post.

By now this is nowhere near complete, but i'm constantly adding. If you wan't to contribute, PM me and i will consider adding your content (with credit ofc).

Since a lot of testing and time intensive tasks are included here, it may take some time to come to some "final" results. Please bare with me because my phone is my daily driver to.

Introduction

To final start of, i think i should determin the goal of this guide. I hope that this will grow to be a reference for general Powersaving on HOX and finding what is wrong (or could

be improved) with your phone. To be clear:

This is not done in 10 minutes! You need time to test different things.​

So you won't be able to read a short post, change three settings, deinstall an app and double your Batterylife! Period! This is a approach of finetuning and getting the most

out of your phone. I don't want 24h Battery life with a laggy non useable phone. which leads to:

Setting your goals

It is crucial to determin what you expect from your phone. Remember: this is a quadcore phone with high-end-graphics. You won't be playing Shadowgun and get 10h of "Playtime"

My personal goals are as following

I plug of charger at 05:10 and come back home around 19:00. I would like to have 15% left when coming home (already done with ARHD)

Usage per day:

3h Music

4h forum reading

some browsing and reading webpages

4-5 phonecalls

a bit of texting (SMS/What'sApp)

a bit of playing with settings and homescreen settings

nearly no gaming and if so then no tegra games

a bit of lag is no problem, but i don't want to wait for my phone to load anything

flawless music playback while screen off

Video playback up to 1080p

no Radio issues (to low voltages can make radio instable at times...)

So all in all no great things, but i'm using my phone a lot and have high screen on times. But i'm not pushing the tegra chip to it's limits (not nearly ;)) I think my goal is

realistic. Remember that your goal should be doable. Just think of what you expect, and you will see relativly fast what can be done and what can't. So what are we working wwith?

My Setup

Just to give you some insight, and to make values comparable, i give you all the relevant information about my setup. You might skip this paragraph if you're just after the tools

and techniques.

My Phone

HTC One X (Obviously)

Black one

Vodaphone Germany Branded

not on JB hBoot

Unlocked

TWRP

No obvious Hardware faults

I got mine relatively early and have one of the first badges...

My Software

atm (16.10.12) IceColdJelly 3.0

Android 4.1.2

Nova Launcher (No theme)

BB10 Lockscreen Mod

NCX Kernel (comes with ICJ)

Apps (most recent used, Basic Setup. The Core i use. Others come and go ;)):

Airdroid

DB Navigator

ES Explorer

Noom

S-Finanzstatus

Tapatalk

Titanium Backup

YouTube

Gapps 20120726

Rest is stock and preinstalled

Other things relevant

I Use HTC standard charger with original HTC USB-Cable

most of the time i don't use a case, nut now and then i have a HTC Flipcase installed

No other accesoirs (No Bluetooth things, no BlingBling or dock or anything like this!)

...

General idea

The idea is, to determin how much current is drawn on a fresh install without apps and only google account entered. After that i want to determin what apps/accounts/settings draw

how much power. I will start from my current setup (see above) and not with a clean install. Reason for that is, that i want to give you a guideline to follow. I think most of

you have your phone setup ready and need more batterytime now.

Atm i'm not on Sense and until there is no universal JB Sense for all CID's i won't go back. So right now, you Sense user might be able to follow parts of this guide but settings

may vary. So you might have to get your head around that for yourself.

Preparation

No, finaly, we dive into geting our hands dirty.

You will need some tools and apps to measure different things. I highly recommend using the apps i use, because they are on the market for a long time, they don't draw aditional

power while in background and i use them for nearly 4 years now without problems. Also no adds, which is great because adds are one of the things that rape your battery like mad!

Things you'll need

A wallcharger (USB on a PC will work, but increases the time you need for this process alot)

Apps

BetterBatteryStats (free Version on XDA. Link will be added later)

CPU Spy

Current Widget

What the apps are for

BetterBatteryStats gives you an overview of what is using your Battery/CPU. Not as clearly labeld as the System option, but much more in depth and highly usefull to

determin which part of certain apps draw your power. Also you can see if your phone goes to deepsleep.

CPU Spy lists all CPU Frequency steps and how long they have been used. Again, seeing if your devices goes to deepsleep and if an app keeps using the CPU more

then it should be.

Current Widget is probably the most usefull app to date. It shows how much current is drawn from your Battery and writes it into a log. So you can directly see

if a change affected your Batterytime. And you don't have to have your screen on to measure (great plus here ;))

Reseting battery stats

To start of clean i highly recommend wiping your battery stats. Do do this, fully charge your phone (100% and then wait till charging light goes green, but minimum 30 min).

plug of charger and shutdown your phone. Replug charger and again wait till charging light goes green. Plug of charger and reboot phone. Now your Battery history should

be clear and we're good to go.
​

The rest follows as i proceed. I'm currently in the process of investigating and testing on my phone. If you think this guide might help you or others, give a thanks.

If something like this is already done stop me now, before i spend 100h writing this ;) Suggestions or tips for improvement are welcome and highly appreciated. If i made a mistake or have given wrong information, tell me and i'll correct asap.

Please bare with my english and my spelling since i'm from germany and english is not my primary language.

Other than that, bye for now. Enjoy reading.

Thanks to all XDA-Members, Devs and Content creators. I've had 4 awesome years in this forum till now and enjoy giving back a bit to the community.

Dominik