A draining battery source for a smartphone or tablet can be devastating, especially when the device is used for work. JuiceDefender is an app that will solve this problem by helping to extend the battery life of Android devices. Developed by battery usage app developer Latedroid, this app will help reserve power consumption. With five preset profiles, JuiceDefender will schedule synchronization events, enable or disable connectivity for certain apps, and auto-toggle Wi-Fi and mobile data. A full activity log will show exactly what is going on and scale CPU when the phone is idle. This app will save an Android's battery. Currently it is available for $1.99.