Every Android phone has this widget. It is easy to use it and it can help you save battery life.
This is Level 1 Tuning the battery life. Instructions are easy, if you don’t use them, turn them OFF.
1. Wi-Fi: when you don’t use it, or out of range of your known Wi-Fi connection, turn it OFF, because it will continuously search for a connection, eating your battery
2. Bluetooth: turn it ON, ONLY when you use Bluetooth connection like headset or file transfer.
3.GPS: this feature is really draining a lot of battery when active, so its good to turn it OFF if you don’t use it
4.Auto SYNC: this option syncs all the time that has an internet connection, and all the time is eating energy
5.Brightness: this is a 3 stage button, and let you choose which one you want. It has LOW, MEDIUM and HIGH options. If you choose LOW, the light under the button is OFF. The other 2 options have the green light.