[Nexus 4 Q&A, Help & Troubleshooting] boyboyxmen:
Some battery saving tips for Android devices

The Android phones are now becoming extremely popular because there are many different triangles, the app store is extremely rich to meet everyone's needs. However, there is a problem of computer users run Google's operating system or experience, which is the machine drain the battery pretty fast. In the following article, I will review a number of tips collected after a period of use to help extend battery life for Android devices. Invite you to join us to share the experience of using your right in this topic to add rich content.

Check the battery consumption of the components in the machine

By default, Android has built us a battery manager quite useful and you can access it by going to Settings> Battery (for Android devices 4.0 or higher) or Settings> About Phone> Battery use (with Android 2.x devices). Here you will find a series of computer applications listed with a percentage figure represents the energy consumption of the app. Do not just stop at the application, the Battery also provide information for us to know that the system, screen, Wi-Fi consume what percentage of battery when the phone is placed in standby mode, the stars, the mode operation, the stars. You can see this as an "observatory", where you can closely monitor your entire system.

In case you discover a number of applications drain the battery too much, we can quickly turn them off by pressing select the app, press the Force Stop button. Also in the new window opens, you will see the details of the software used to machine resources, such as CPU access applications for how long, how long GPS, the background for several minutes, the amount of data sent / received on. If you feel no need to use such software because it causes more battery power, you can remove it from the machine.

Besides, this manager also gives us a graph depicting the change of battery during use. For example, during the first two hours of machine you use to surf the web, play games, then the line will drop faster than the period for idle factory. Immediately below the bar chart is a long series tell you that the connection / items that have been enabled for how long. Some vendors, such as HTC has customized this chart more intuitive way, providing more hours should be more convenient for you when you need to track.

Switching between 2G and 3G

When using mobile Internet, we have two options: either use 2G or 3G use. Benefits of 3G, then surely you all know, it is very fast access speed, so the web browser, download the application will be completed in a short time than 2G (or commonly known as GPRS, EDGE). However, the downside is that it does 3G drain the battery very fast machine, sometimes causing market is heating up again. Therefore, if you need long time use Android devices, you turn off 3G away when not needed, just idling 2G only. For example, when browsing or searching location, load maps, we use 3G for optimal speed when not in use, the switch to the 2G network to serve the gentle features such as check email, update Facebook's announcement. Thus, the machine's battery life will be extended significantly.

To set the machine to run only 2G, Android device, you access the Settings> More> Mobile Network, select "Use only 2G networks", if you want to use 3G, then uncheck this. However, we have too many steps and gain access to this section, so I suggest you use a small widget called 2G-3G OnOff. After downloading, you perform a widget on your home screen as usual. Every time you need to switch between two types of connection, click the icon of the app, the screen immediately have the "Use only 2G networks" will appear. It will help us save a lot of time from having to manually customize.

Select chip equipment optimized for battery life

In part the battery saving things related to wireless connectivity, without configuring the software, I would like to share some of the little things related to hardware. Currently, Qualcomm is the only manufacturer to find a way to integrate components such as wireless transceivers GPS / GLONASS, 3G/4G LTE up straight in SoC (ie chips used in mobile devices, in which contains the CPU). Compared with NVIDIA Tegra SoC machines running 3/4 or Samsung Exynos - which used the chip and wireless module are separate, Qualcomm solutions help optimize battery life better. Speed ​​transceivers, cellular 3G is also enhanced, faster access speeds. Therefore, when you buy a smartphone, tablet using Qualcomm Snapdragon SoC, the level of savings and speed to excel compared to the SoC line from other companies, especially those who often have to use 3G.

Some machines use Qualcomm Snapdragon SoC can be listed today as LG Nexus 4, LG Optimus G, LG Optimus LTE II, HTC Butterfly, X HTC Desire, HTC Desire SV, SV HTC One, HTC One S, Sony Xperia T / TX, Xperia V, Xperia S / P / U, Motorola Droid RAZR HD / MAXX HD ... It also saves battery on the right side of the machine running both Windows Phone 7 and 8, which are using Qualcomm's S4 Snapdragon SoC, such as the Nokia Lumia 920, Nokia Lumia 820, HTC Windows Phone 8X, HTC Windows Phone 8S, Samsung Ativ S. ..

Refining self-synchronizing data

The automatic synchronization of data is also a factor affecting the battery life of Android devices. Automatic sync means that the software will continue to get access network information, such as when you push mail or Facebook check such notification. If you need to use it with no problems, but in case you use it at this truly is a very wasteful. Not only that but the battery as fast as it also makes the system slow down if your machine does not have a very powerful configuration. Therefore, let us manage the synchronization of Android devices by accessing each specific application, for the configuration / settings / configuration to customize them. Here I will show some typical software.

General Google Account: You access the machine's Settings, scroll down below to see the Accounts. There are many different types of accounts, select the Google line. Continue to take an email account in case the machine is logged multiple addresses, then you will see a series of tick marks to sync select content. We have: sync calendar, bookmarks / history of Chrome, contacts, Google Drive, Gmail, Google Currents, Google Photos, Google Play Music, ... If you do not like something, synchronous machine so that you uncheck travel is completed.

Gmail: run the software, click the three dots in the lower right corner of the screen, select Settings. Select the account to which you configure, looking down at the Data Usage. Here is a line called "Gmail sync is ON", touch it. In the dialog box that appears, uncheck Auto-sync app data if you want Gmail to stop auto complete email as soon as a letter just received. You can also customize each one Google account as needed.

Facebook: Facebook launches app, you click the three dots in the lower right corner of the screen, select Settings. In the Refresh Interval, select the time interval between two self-refresh app content. You can for 1 hour if used Facebook, but not the 2 hours or 4 hours is fine. Also, with Facebook, you can go to the Settings of the machine, browse Facebook in the Account text, deselect the "Contacts" app not proceed to synchronize contacts.

Yahoo Mail: This section is quite similar to the general Google account, you are also in the machine's Settings> browse to the Accounts> Yahoo. Choose to your account, if you do not want to uncheck Contacts sync contacts, uncheck if you do not want to download mail Messages as soon as it arrived.

Dropbox: Unlike the sync app is on the simple things, Dropbox allows us to upload photos automatically have snapped up on the company's servers, which is extremely convenient when you need to make a save Reserve as soon as the image is recorded. To refine this feature, you launch the Dropbox software, click the three dots in the upper right corner of the screen, select Settings. If you want to completely turn off auto upload, select Turn off Camera Upload. And if you want to sync only when there is Wi-Fi, you click Upload lines using> Wi-Fi only (also stream data plan or Wi-Fi, the download allows both 3G and Wi-Fi, but that the loss machine battery pretty fast so you might want to consider while taking). The online app store like SkyDrive, Box, SugarSync and you do the same.

Reduce unused connections

This procedure is one of those things apply across platforms, from mobile devices running Android, iOS, S40, BlackBerry, Symbian and PC. Wi-Fi connection is very useful, it helps for applications in machines, especially the networking applications such as Email, Facebook, Twitter, RSS ... work smoothly and efficiently, but also so that makes the battery faster. If you go to places where there is no Wi-Fi or Wi-Fi signal is weak, the machine detects Wi-Fi all the time, the machine drains the battery faster. So, if you do not need Wi-Fi to turn off by going to Settings, Wi-Fi gotten to the OFF. Do the same for Bluetooth connectivity, 3G. If you are currently using Android 4.2, you can quickly shut off by using two fingers to drag the status bar will show the buttons appear as shown below.

It should be noted that if you regularly use the wireless connection, the aforementioned toggle is often not a good idea. I've been testing and found that the continuous turn will make the battery faster than normal wear, and many, many technology news site also confirmed the above phenomenon. The reason for this is explained by each enable Bluetooth or Wi-Fi or 3G, the machine must use more energy to find and establish a connection. Energy consumption in the boot process is much higher than the energy needed to maintain connectivity. Therefore, if you need to use Wi-Fi or 3G more then let him thus limiting open off several times.

Adjust the screen brightness automatically

The screen is a component of the "eat" batteries in a mobile device, regardless of which machine is running Android, iOS or Symbian. Therefore, Google has applied the method to adjust the screen brightness for your operating system. This feature on activities using a sensor called ambient light sensor, usually next speaker layout or on the side of the machine, to see the brightness of the environment around the user is, from which crystals adjust the brightness of the screen accordingly. This approach has three advantages: saving battery power, energy saving manual adjustments, just to help our eyes more comfortable. If you often have to move between the brightness difference where this is extremely useful features. Once inside, the machine self-adjust the screen darkens a bit to save battery power, even when it came out way too bright on the screen for you to see better in the sun. It's convenient right?

To enable the ability to adjust the brightness on Android 4.x, go to Settings> Display> Brightness, select the check box Automatic Brightness. If you are running older Android versions like 2.3, 2.2, please go to Settings> Sound and Display> Brightness, Automatic brightness adjustment press box. You note that this option only applies to machines equipped ambient sensor ok.

Keep your phone in a cool place

Can you believe this is not related, but the real ambient temperature greatly affects the performance of the machine as well as the use of batteries. Normally, the battery works better in a cool place, and the heat for a long time that the battery power dropped away much quicker. Therefore, you should limit the phone tucked into places too narrow to avoid the sun shines directly into our time machine too long. So you just help better battery life, the life expectancy has increased for the other components of the machine.

Use the Google application "dark"

Google provides many applications for its Android operating system (such as Gmail, Maps, Google+, Music, Documents ...) and most of these applications have in common colors are white, black letters. If your phone uses AMOLED screen it is best to turn it on a black background to save battery life. Two of these displays have the advantage of being able to black out, it will turn off the pixel goes to an absolute black, the only color other then the new pixel color that glows. Whereby it will save a lot of battery when using a black background with many apps like this. So how to switch to a black background? Very easy, a modder named "rujelus22" mod to have the app on Google and convert them to black and white text background colors, all you need to do is download and install only.

rujelus22 that you can install parallel black background applications with legacy applications. But on a certain number of machines, you may need to remove the original, the new Google application installed the "black" is. You can download the application "dark" is the link: MediaFire / or update FShare add new applications in the source link of the author. Conduct a Flash file into the package or set each file sequentially. APK one.

List of Google applications have been converted to black tones:

Google Play

Google+, Gmail

Google Docs, Google Voice, Google Translate

Search Box

Google Talk, Google Reader

Google Music, YouTube

And other applications:

Twitter, Dropbox

Virtual Keyboard ICS and Gingerbread

(Excerpted from his @ TDNC: [Android] Save battery power with the Google apps dark)

Limiting the use of advertising associated software

In addition to the reasons as old as the big screen, powerful hardware to the researchers from Purdue University and Microsoft found that 75% of battery consumption on Android case related to the application by in-game ads cause. Android has a lot of free software and games, most of all we are and will insert advertising is constantly in the process we use. These ads constantly connected to the Internet and transmit that information to the Android machine becomes so drain the battery. It is so, I had previously tried a number of free applications that support the ad noticed lagging computer battery a bit faster than using the app, but is also a chargeable ( ie no advertising). Therefore, you should purchase a software license, just to support authors, both respected intellectual property law and minimize battery consumption by advertising with me, but if not then you have to take the trouble to find files information install APK format on internet such.

Stopping or removing unnecessary app

You will never know what software is running in the background if they are not managed in a coherent way through the menu Settings> Apps> Running tab. Some app seemed gone off but we really still running and continuous access to the system resources. If the app you use it often or do not say, but there are things we run up a long long time, so that a system occupied unnecessarily, to make our machines drain the battery more quickly. In this case, you should stop the application by selecting desire to take an app, press the Stop button in the process are displayed. In addition, you can also remove them completely out of the machine to not accidentally activate the app is not necessary.

The backend applications for prolonged battery life

Juice Defender

Android has many additional applications to help you manage and increase the battery life, which is a famous software called Juice Defender. It will automatically set system parameters to optimize battery life for the machine. The free version of JuiceDefender supports the Balanced and Aggressive configurations, providing limited ability to control the data connection and synchronize calendar. Plus version ($ 1.99) to expand custom configurations and more Aggressive custom calendar sync. Ultimate version ($ 4.99) has additional functions such as AutoSync (automatic sync), Screen Timeout (Romance of time off screen), Screen Brightness (Adjust the screen brightness) and many additional custom calendar at sets. If the root device, this software also allows you to control the CPU speed, GPS and switch between 2G/3G mode.

To use the free JuiceDefender is very simple, follow these steps:

At Play Store to find and install JuiceDefender installed on machines or at this link.

Running JuiceDefender select Enabled. That's it.

The second configuration is free to choose the Balanced and Aggressive. Also, the free version only manage Mobile data is connected, so in theory the Plus or Ultimate will save more battery. The management style of the free time you use the battery by about 50%

Balanced Configuration: With this configuration, Mobile data connection will be automatically switched off when the phone screen is off. Every 15 minutes, the connection will be activated to sync data (email, calendar ...)

Aggressive Configuration: Balanced Like in that the screen is off, it would automatically turn off Mobile Data. Yet another place is just 30 minutes, the connection will be activated to sync. This configuration is another place again when the battery is too low, then the connection will not be activated even when the screen is open. Maximum battery savings.

For normal users, simply enable the free version is finished. If you want more than that, you can use the Ultimate version, others will have a more detailed article on this premium version (Excerpted Saver for Android with Juice Defender my @ vuhai6)

Battery Doctor

A free app also helps us save battery management and an intuitive, Battery Doctor (download here). Its main feature is to provide relative time that you can use with current battery capacity (the accuracy of the minutes), when the principal warning or when a fully charged battery, automatically adjusts system components such as Wi-Fi, GPS, Bluetooth to save battery life by different modes: Extreme - only messaging feature called active listening, Clock - alarm clock only activities and Custom - customized according to your needs.

When you click on the battery icon in the park outside the main screen, Battery Doctor allows us to view the status of batteries, current battery capacity, temperature, battery voltage, battery technology. A chart above also allows you to monitor the energy consumption of the machine for any period of more battery power, about which little use, ...

Also, a point that I find interesting is that when using Battery Doctor to turn off the connection type, the battery time remaining will increase or decrease in an intuitive way (some minute changes expected soon ), from which you can easily decide which one should be turned off the public. It also will tell you the time relative to the full charge of your Android machine is how long.

Sony Smart Connect

There is a free software quite useful for you to shut off timer connection types, such as Sony Smart Connect (Download the Sony Smart Connect application). This application is the automatic functions perform a variety of tasks in a certain time you set, or when you connect a peripheral device to the mayAndroid her. The interesting point is that each series of actions that can be divided by "facts" are different, for example, you go to work 7 am, when the machine breaks free Wi-Fi, transfer ringtone to silent mode, and to 5 pm, the machine switches itself on the ring and Wi-Fi. It should be added that Smart Connect developed by Sony, but it can run on all Android devices of other manufacturers. I have tried to install on multiple machines HTC, LG and Smart Connect the Nexus 4 will work fine.

After you download the software, run the app Smart Connect. In the main interface, click the + button in the upper right corner of the screen, enter the name of the new event, such as "go to" for example. In the new screen appears, the item When you click on the "Add condition". Here, you can set the app to trigger events based on the hours or recommend charging / headphones recommend (with the Sony Xperia, you have a lot of other ways activated by touching SmartTag, connected to SonySmartWatch, ...). If you choose, you can choose hourly event repeats every day or some days of the week.

Next, we will set the machine will do the action sequences. In This is the result of the action will take place at the start of the event, and the "At The End" is what it will do when the event ended. As I said to the example earlier, to go to the event, you can set the Do This includes the mute, turn off Wi-Fi, 3G open, running app map. And At The End section, select the Wi-Fi open, open the bell, turn off 3G. You can apply similar measures to the machine itself off when going to sleep sound, light and time again that they open themselves. Additionally, you can place orders for Smart Connect launch a particular application, posting new status to Facebook, ... After you've installed the action series, do not forget to flip the switch to On top of the screen, while the new machine and run track events as we have to.