If your battery’s “Maximum Capacity” is around 70 percent, or you see a warning about reduced “Peak Performance Capability,” it might be time to replace the battery. If your device is still under warranty or covered by AppleCare+, contact Apple

For example, if you charge your iPhone when it has 75% of its battery left, the battery will start to behave as if it's total capacity is 75%, not the original 100%. The way to get around a battery losing capacity in this way is to use the phone as lo

How to Save Battery Life on Your iPhone. Does your iPhone battery need a boost? These Apple iPhone battery tips and tricks will help get you through the day without a charge.