[Vibrant Q&A, Help & Troubleshooting] Woody:
Battery Life on a SmartPhone - The Riddle, The Enigma
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Attaining 20+ hours of battery life is not only possible it is totally attainable with most phone configurations. The secret to making this happen is, understanding what are the contributing factors are and knowing what to do first.

This guide will help. After reading this guide, you will be able to understand how to end power eating culprits and answer those same questions we see over and over in the threads...... that is .... solving the passive battery drain and get the 20 hours of battery life we all want and desire.

I have tried to get almost everything I can think of and put it in one place. We have all seen the threads that say, “Please help with my battery issue”, “Does undervolting save you battery life” or “Getting horrible battery life” (and yes I did use the…SEARCH Button…and these are titles directly from the Q & A section).

Post 1: Tips and Tricks

Post 2: Roms/Kernels, OverClocking/Undervolting and Memory Management

Post 3: Apps (for your download pleasure)

I will be using satirical stories and anecdotes to get my point across below. Not meant to offend or point fingers at anyone. I am just using real life references to get to the point. Also I am not much for fancy colors. I tried it at the top here but not so much further down. If there is something specific I want to call attention too, I will BOLD it and maybe RED it too.

This is not a GUIDE to get better battery life but rather a GUIDEline to get it. What is the difference, you say? A Guide is a step by step process that you must/should follow to get the outcome that the person who created it wanted you to get [A+B+C+D should = E]. A Guideline is more of a recommendation that allows some choice or flexibility in the understanding, execution or use [A +B-(C+D) can = E].

As we all know, all Vibrants are not created equal and so if something works for one person and not the other, then is it a software, hardware or human error. Chances are it is a combination of all three. Hopefully this can slim those down a bit and answer some questions that you might have or have seen.

**Special thanks to NOOB_IN_N33D for his help in gathering info, especially the MIUI/CM7 parts below. Do yourself a favor and hit up his Guide- Easily Flash MIUI for Vibrant. It has themes, modems, kernels,… and he really put a lot of time and effort into it. It is stickied in the QA section so it shouldn’t be too hard to find. Hit his thanks button please.**

TopShelf10 has this to say about getting the most out of your battery life

Below is a list of fundamental things that can be done without rooting or custom ROM/Kernels. (Standard disclaimer applies: You use it, you set it and you are responsible)

1. Be Realistic -

Do you really think that you can get two whole days out of your battery? If you do, then you must have a very important pile of papers it is sitting on to not even pick up your phone for that long. These are phones. These are mini-computers. These are arcade games. And they want, dare I say, need to be played with, talked on or downloaded to. USE YOUR PHONE.

2. Syncing –

I know you are very important and you need to know what LeBron is doing right now, just in case you get a cup for a coffee and he might be in Starbucks at the same time and you get your picture taken with him and upload it to Facebook, Twitter or Google+. That is fine and I applaud you for it and will probably download the picture and Photoshop myself in your place. This is not the problem. Syncing your accounts is. That is what is causing battery drain. Do you really need to have your FB widget (see widgets section) streaming all day long? Does Kim K.’s endorsement of a potato chip really affect your everyday life? I doubt it. Kill them (not LeBron or Kim K. but rather the auto-syncing). Every time you “friend” someone their numbers, contact info gets sync’d to your phone. Also, there are settings in Facebook, Twitter and Google+ that you can upload pictures instantly. Don’t do that. Once you do, it is out in the Ether-World and just swallowed a bunch of battery doing it too.

Settings>Accounts and Sync>Auto-sync>uncheck it

3. Widgets –

They look cool. But widgets are nothing more than RAM and battery hungry monsters that you purposely put in your home screen. Think about it. What does a widget really do? All it really does is monitor an app that you have running. So not only is it running and taking up battery and RAM but the app that it is linked to is running in the background al’ a Facebook, Twitter, Google+, CNBC, MSNBC, BBC,… the list goes on and on because they want us to put THEM on our home page. What a great marketing campaign the widget is. “Hey look at me new home screen” “Cool. Hey what widget is that?” “Oh, it is X” “Nice, I’ll have to download that tonight when I get home” and then and there they have you and your battery.

4. Apps –

You have to pay attention to your apps. I repeat. You have to pay attention to your apps. Especially if they run in the background. This can be anything from a harmless .99c game to a monster like Live Wallpaper. The battery drain threat is twofold here because the app is running in the background but it could also be using its anonymous data collection abilities and sending that back to the Mothership. Ever wonder why you have a H with up and down arrows in your status bar when your phone is just sitting there? This is because some app is transmitting data, whether you are using it or not. There are apps in the market that monitor these situations like Watchdog or kill the data link when the lock screen is enabled like Juice Defender (see Apps below) or you can adjust app permissions like LBE Privacy Guard. Data transfer is #2 on the What Kills My Battery list.

5. Display/ Wifi/ Airplane Mode/ Animations –

Display:

#1 when it comes to what is eating your battery. Always has been and always will be. Accept it and try to do something about it. This part is easy. Just lower the brightness. You can use Auto or set it as a brightness that is low but you are still able to see well enough to function. Live Wallpapers fall into this category. They are cool to look at but static ones take up less RAM and also less display because they are not running all the time in the background. These screens are bright at 100%, so tone it down. (see Apps below).

WIFI:

Another helpful tip is setting your WIFI sleep policy to Never. This can be done by going here Setting>Wireless>WIFI> Menu key>Advanced>WIFI Sleep Policy and set it to Never.

Airplane Mode Toggle:

NOOB_IN_N33D found this helpful trick too. Phazeman...

"Toggle the airplane mode on/off 3 times in a row, that will reduce your Cell Standby battery usage.

It should only be necessary to do it once after flashing but if you think Cell Standby uses too much power at some stage you could toggle again the airplane mode"…Phazeman

Animations:

Set Settings > Display > Animations to "Off or Med. animations.

These are 5 fundamental things that you can do to help reduce battery drain and get some more life out of your phone. Anyone can do these. All you have to do is watch your phone and use some common sense. “Why does my battery drain after only 6 hours? All I was doing was checking Facebook.” Do you really need to be on Facebook for that long of a time? I doubt it. How many services do you have running? How many tasks do you have running? (Android does a good job of shutting down tasks on its own, but if you are using a task killer, it takes more juice to start up an app than to turn it back on, so to say.) Think of it like an airplane. Takes more fuel to get up in the clouds, but once you are up there, it is pretty much coasting along with way less burn.

Special thanks to Oka1, NOOB_IN N33D and chamonix

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