Fast charger battery help to charging boost speed. Fast charger battery can boost your battery charging speed by about 20 - 40%. In fast charging mode, Fast charger battery will kill all apps running in the background and turn off wifi, 3G, auto-sysnc, reduce brightness... Fast charger battery help battery saver and enhance your battery life Why use Fast charger battery - Nice and User-friendly UI. - Shows the battery info such as battery temperature, battery voltage, battery health. - Automatically activates fast charging mode. - Automatically turn off wifi - Automatically turn off bluetooth - Automatically change brightness level, screen timeout. Thanks for use Super Fast Charger please rate us 5 star and send your feedback.