MARKET Poupar bateria

Android Market:
ES Task Manager
Save Battery,
Free Memory,
Kill Task,
Uninstall App,
Speed up the phone

*add important app to ignore list to avoid to be killed!

https://market.android.com/details?id=com.estrongs.android.taskmanager

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Poupança de Bateria One-Touch

https://market.android.com/details?id=cn.menue.batterysave.international
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Advanced Task Killer

Advanced Task Killer is also known as ATK. It is a tool to kill applications running.
http://market.android.com/details?id=com.rechild.advancedtaskkiller

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Battery Doctor to Save Battery
http://market.android.com/details?id=net.lepeng.batterydoctor

Max and extend your Battery life.
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Alice Battery Widget CUTE
https://market.android.com/details?id=biz.artsplanet.android.arisubattery&feature=search_result