Battery Saver + Active Applications Manager (task manager)
Bataria was designed to be small and efficient, including status bar battery and 1x1 battery widget for quick operation. Activating power save mode will turn off all the power hungry resources: Display Brightness, Background Data Sync, Wi-Fi, Bluetooth...

Key Features:
BATTERY SAVER
ACTIVE APPLICATIONS MANAGER
1X1 BATTERY WIDGET
STATUS BAR BATTERY PERCENTAGE (color change according to the battery level)
AUTO POWER SAVING (when the battery level reaches a specified percentage)

Power Saving Features:
turn off Display Brightness (set to minimum)
turn off Background Data Sync
turn off Wi-Fi
turn off Bluetooth