If you're ever curious about your iPhone's battery health, there are easy-to-access stats that let you know the last charge amount, which apps are eating away at most of your power, and even your battery's remaining capacity. Now, a new update makes it easier to know how well your battery is doing. But there's a catch — the update only applies to the iPhone 15 series models. These models already have a leg up on older iPhone models when it comes to battery health information since you can see the battery's manufacture date, first use, and cycle count. On the fourth beta of iOS 17.4, when you... more