Since battery life will inevitably decrease over time, it’s worth thinking long-term about your phone’s battery, even when it’s new. You can use some of the phone’s features to extend your iPhone battery life. Following some, if not all, of these steps, will help you achieve that goal. However, your iPhone battery’s chemical age can also be determined by periodically checking the battery menu in the settings app.
Listed below are some helpful tips on how to save battery on your iPhone without further ado. Read full here: https://www.soldrit.com/blog/how-to-manage-your-iphone-battery-health/