Get a notification to turn OFF cellular data when in a WEAK cell signal area to conserve battery.
When you are in an area with a weak signal, your phone will constantly search for a good signal (even if there isn't one). This process consumes large amounts precious battery life. Use this recipe if you know you are going to be in a place or area with bad cellular signal. DIRECTIONS on how to turn OFF cellular data on iOS 7 and above: 1) Go to the "Settings" app. 2) At the top, under "Bluetooth", you should see a menu named "Cellular". Click it. 3) Toggle "Cellular Data" to the OFF state. 4) Voila! Now you have saved precious battery life!