Battery management features on iOS have improved greatly over the past few years. iPhones manage their own charging to optimize battery life, sometimes delaying a full charge based on usage patterns. The iPhone may display a battery percentage while charging, however there's no audible alert when charging has completed. For anyone interested in knowing exactly when their device has finished charging, Apple offers the Shortcuts app.
Notifications from your various apps vary greatly in importance and frequency, and this is something Apple has taken note of and tried to address with a variety of management options. While in the early years you could simply turn notifications on or off, you can now manage notifications by individual app. You can turn notifications off for a particular app altogether, or you can turn off the sounds or badges and decide whether you want them to show up on the Lock Screen or Notification Center or as a banners. iOS 15 introduces a new management tool - the Notification Summary.
All wireless providers deliver government-issued Wireless Emergency Alerts (WEA) to iPhone owners on their networks. The capability to receive these alerts was added with a Carrier Settings Update in 2013. There are four types of alerts, three of which iPhone owners can turn off.
The Notification Summary provides a consolidated list of unread notifications on devices running iOS 15 and later. The feature can be enabled from Settings -> Notifications -> Scheduled Summary.
To reduce unwanted or low-priority notifications throughout the day, they are instead lumped together for later browsing.
The iPhone can send a notification when a paired Apple Watch is charged. This handy feature lets you know immediately when the Apple Watch battery has been topped off to full capacity. Taking the guessing out of battery monitoring requires a few extra steps. In order to receive an alert when the Apple Watch is fully charged, sleep tracking for Apple Watch must be enabled on the iPhone.