DU Battery Saver Phone Charger v3 9 9 9 8 1 Final DU Battery Saver is a FREE battery saving app that makes your battery last longer, and can help you get up to 50% more battery life for your Android phone! With DU Battery Savers smart pre-set battery power management modes, one-touch controls and healthy battery charger stage features, you can solve battery problems and extend your battery life. Why DU Battery Saver (Battery Booster & Battery Charger) is a MUST-HAVE app? ? Convenient Battery Saver - the "OPTIMIZE" home screen widget allows you to stop power-consumptive background apps with one tap to boost your battery life. ? Smart Pre-set Modes - choose the mode that fits your battery power usage, or customize to find the right balance of battery life and performance using our battery saver. ? Phone Cooler - The cool down feature works by systematically monitoring, managing, and disabling CPU-intensive apps in order to reduce phone temperature to a safe level and protec...