Concerned about the draining battery of your Android smartphone? This free and simple app helps boost the battery life of the phone. Once enabled, the app goes into action whenever the phone is in idle mode, i.e. the display is turned off. It automatically disables battery hogging features like 3G and Wi-Fi. But as soon as the screen is turned on, the signals are also back. However, in this process, we did not receive email notifications during the period. Overall, a good application as it can come handy when running on a low battery. It also shows the work logs.