5 Tips To Save Battery Power on an Android

The Android operating system is turning the mobile communications and PDA world on its head by offering features, functionality and an open architecture that threatens to blow away everything else on the market.^[1] However, many of the features available on Android devices can cause batteries to become drained very quickly. Because of this, users of Android devices must intelligently and proactively manage the energy in their batteries. The power-saving options presented here can be used as you wish; all at the same time, individually or in any desired combination.

1. Turn off the wireless feature when not needed. (Settings » Wireless controls » WiFi, or get the Wireless Settings free app) The wireless networking transmitter uses quite a bit of power. Even when the device is not connected to a network, it will continue to search for one on a regular basis. 

2. Turn off the Bluetooth feature when not needed. (Settings » Wireless controls » Bluetooth) For the same reasons as you should turn off WiFi, turn off the Bluetooth feature if you are not using it. 

3. Turn off the GPS. (Settings » Security & location » Enable GPS satellites) When the GPS receiver in your Android device is active it looks for satellites, and its processor prepares information to be sent to any application that needs it, regardless of whether an application that uses the GPS is running or not. If you are not navigating, turn off GPS and let the device use whatever alternative location services your wireless network provider may offer. 

4. Ask your phone what is using the largest percentages of power. (Settings » About phone » Battery use) If you ask Android what's using what percentage of available battery power, it will tell you. The vast majority of the time the biggest power hog is the display.

• Also check Settings-> Applications -> Running Services. Here you'll find a lot of services with their RAM usage on the right hand side. Select such services as "software update", "email" and services not used by you. An option appears highlighted that will say "stop". Select it to end that particular app. This decreases RAM usage and extends the battery life.

5. Tell the device to only use 2G networks. (Settings » Wireless controls » Mobile networks » Use only 2G networks) If you do not need access to high speed data, or there is no 3G or 4G network where you live, you can tell Android to only use 2G mobile networks. You will still have access to EDGE network data and WiFi if needed. 

Source : http://www.wikihow.com/Save-Battery-Power-on-an-Android

5 Android Battery Saver

No matter how much you love your Android smartphone, there are days where we could all use a little more battery life. With countless apps sometimes running in the background, your mobile battery can become drained pretty quickly.
But don’t put your smartphone down just yet; you can extend the daily lifespan of your phone’s battery and enhance its day-to-day performance with these highly recommended battery-saver apps for Android.

1. JuiceDefender

Manage power according to your own preferences or use preset profiles and extend the battery life of your Android with JuiceDefender. As if it had a mind of its own, this Android battery-saver app puts the juice back into your device by automatically and transparently managing the most power-draining features of your phone, such as mobile data, Wi-Fi, 3G/4G connectivity and screen brightness.
Fully customizable, JuiceDefender has an intuitive layout, and it can run on its own once configured to your liking. Decide when to schedule regular synchronization events, enable or disable specific app connectivity, or automatically toggle your Wi-Fi based on location.

2. 2 Battery

While we all love to save battery life when using our phones, making the most of your data allowance could be an even greater bonus. The 2 Battery app turns off your mobile data connection when you’re not actively using it, reducing both battery drainage and data usage. Even better, it periodically toggles mobile data back on to keep your background data (email, calendar, Twitter, etc.) synchronized.
This Android battery-saver app extends the power of your phone easily and efficiently, without the hassle of confusing menus and options no one understands.

3. GreenPower Premium

Forget your power cord at home? No worries! GreenPower Premium battery-saver app for Android gives your phone extra hours of power. This free app is fully automatic and runs unobtrusively in the background. Just configure and put your mind at ease, leaving GreenPower to do what it does best.
The app handles Wi-Fi, mobile data and even Bluetooth® with ease. A leaf icon in the status panel tells you at a glance how GreenPower is working.

4. Android Booster

If you’re searching for some serious Android optimization, look no further than this power-saving app with memory booster. That’s right, Android Booster increases your phone’s speed while saving valuable power and reclaiming memory.
The app’s easy-to-use interface gives you complete control over how everything functions on the back end of your phone. Features include a task killer, app manager, network manager and file organizer. This battery-saver app for Android puts a big boost in your phone’s overall performance.

5. DU Battery Saver

Within its sleek interface, DU Battery Saver tells you how much time you have left with your phone’s current battery level (and the details of that time, such as how many Internet browsing minutes you have left). It then lets you optimize that time by closing different apps and disabling different features on your phone. You can also pin this app’s widget to your Android’s home screen so you’re always in the know.
Thanks to its features, the free version of DU Battery Saver claims to boost your Android battery life by 50 percent. The paid version claims users can get up to 70 percent more battery life and automates some of the features found in the free version. The version you download depends on your activity level, but the important thing is that DU Battery Saver in some form makes its way onto your Android.

Source : http://www.verizonwireless.com/mobile-living/apps/best-android-battery-saver-apps/