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There are dozens of battery saving apps on the Android Market and many that you don't need to pay for. You can easily find the following applications in the Android Market when you search for battery saving apps. They all share a four-star-or-higher rating and have been downloaded thousands of times from the Market and third party sites such as Yahoo's Appolicious and Android Zoom. Depending on your needs, one of these apps may be the best to save power on your device. In no particular order, here are the top ten power saving apps for Android devices.
JuiceDefender
Available in both a free, "Lite" version and a paid, full version, JuiceDefender offers several levels of battery saving. These levels, known as profiles, disable or reduce usage from various apps and features -- such as background data. You can choose a light battery saving profile or a heavy one if you wish to significantly increase battery life. The JuiceDefender widget for your home screen will allow you to quickly enable or disable the app and show you just how much power it's helping you save. JuiceDefender is recommended by users and reviewers alike, including PC Mag.
Battery Dr. Saver
Battery Dr Saver is a free application that puts a variety of options on one screen. You can dim your phone's screen to save power, for example, turn on airplane mode -- which disables all radios and adjust the volume of the rings. Battery Dr Saver allows you to turn off WiFi, hotspots, mobile network connections and Bluetooth -- all features that can drain your battery life even if you are not actively using them. Nearly 25,000 users have voted on this app in the Market, giving it almost a perfect 5-star score.

