Battery Saver & Battery Doctor is a FREE power saver battery app for all Android devices. It integrates professional features to easy battery saver and fast charging. Download our application for battery speed charger now to engage in more than 1 million users.Our application provides the technology "1Charge 3Days", which will help you fully control the power of your device and battery cooler. It is amazing to turn on ultimate battery saver, battery boosters, and fast charger by a simple gesture.The great feature of Battery Saver & Battery Doctor:★ CONSUMPTION TRACKING ★Click "Optimize" to analyze where the battery is used. It will help you increase the battery life automatically.★ PHONE BATTERY SAVER★Our application will help you battery saver power saver for android mobile up to 50% than usual. Also, it indicates the remaining time of the battery in many situations: texting, surfing, shopping, working, reading. The application will display the battery temperature, voltage information, and other parameters.★ RAPID BATTERY CHARGER★Gives you the ability to manage the charging and fast battery charger booster with features: Speed, Continuous, Drip. It shows the precise time remaining to complete the battery with the battery fast charger. You could save 30% battery charging time than normal.★ MONITORING APPLICATIONS ★Monitor the consumption of power in all applications. It will automatically close background applications damaging to the battery.★ SMART PRESET MODES ★ Even if you are not using the phone, some tasks are still ongoing to drain your battery. Choose and customize the appropriate mode to improve your energy. You can select the power saving mode: PROLONG, SLEEP, GENERAL, MY MODE.For requests or questions, please comment below, we will respond as quickly as possible. Thank you for your trust in this application for battery defender battery saver. And do not forget to rate 5 * to support the developers.