Running out of battery in the middle of the day is frustrating, especially when you need your phone for directions, messages or work. The good news is that most battery problems are caused by a few common habits, and small changes can make a noticeable difference. This guide explains, in simple steps, how to make your phone last longer between charges and how to keep its battery healthier over time. Find Out What Is Using the Battery Before changing anything, it helps to know where the power is going. Both Android and Apple phones include a battery section in Settings that shows which apps and features have used the most…