JuiceDefender - battery saver (828 KB), extend the battery life of your Android device easily with just one tap, as it equips with preset profiles and automatically manages battery draining components for you. Some advanced features are limited to the paid version.Battery Dr saver (1.1 MB), view battery usage by display, cell standby, Wi-Fi, phone idle and the system; check battery temperature, level and health; turn off unused services, kill tasks and adjust screen and volume to save battery life.