BatterySaver + Pro

It's pro version of BatterySave+, it's ad free.

Features:
√ Real-time battery status display
√ Real-time battery status in the task bar
√ Provide real-time battery widget
√ Provide quick switch widget
√ Custom battery-saving mode, One Tap to switch mode
√ One Tap to turn on/off WI-FI
√ One Tap to turn on/off mobile network
√ One Tap to turn on/off automatic synchronization
√ One Tap to turn on/off Bluetooth
√ One Tap to turn on/off GPS
√ One Tap to turn on/off auto rotation
√ One Tap to turn on/off haptic feedback
√ One Tap to adjust screen brightness
√ One Tap to adjust ring volume
√ One Tap to adjust the vibration
√ Provide Screen Timeout setting
√ Do not need Root Permissions