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By Hillel Fuld/ @Hilzfuld
Yet another thing that should be built in to the Android OS, but definitely a useful app/widget. Basically, this shows the exact percentage of your battery charge at any given moment. You can simply place this widget on your home screen, and you will remain notified of your battery’s juice at all times. When you click on the widget, you are shown current information about the different radios on the phone and their status. So if Wifi is on or GPS is off, the Battery widget will let you know so you can adjust them accordingly. Very useful tool.
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