How To Calibrate Your Iphone Battery. Use the iPhone until it it shuts OFF itself due to Low Battery. Only use official Apple cables.

Do some activity on your device to do so. You can do so during normal usage. Up to 50 cash back When you replace your old battery iPhone battery calibration will help you.
How to calibrate the battery of your iPhone.
Hold down the Power button and Home Button until Apple logo appears. To start the calibration process completely drain your iPhone battery to 0. Then tap on Software Update. Up to 50 cash back Step 1.
