D dvoros macrumors 6502 Original poster Sep 1, 2010 421 18 Oct 30, 2014 #1 Why does my iPhone shut down when it still has 20% battery life left?
D deeddawg macrumors G5 Jun 14, 2010 12,514 6,618 US Oct 30, 2014 #2 Try this: http://www.redmondpie.com/how-to-ca...attery-life-for-maximum-performance-tutorial/ If the problem continues past that your battery has probably failed.
Try this: http://www.redmondpie.com/how-to-ca...attery-life-for-maximum-performance-tutorial/ If the problem continues past that your battery has probably failed.