Every time there’s a major iOS update, reports of battery drain issues usually follow. iOS 15.4 appears to be no exception, as users who’ve recently updated have been quick to make their case on social media.
Anecdotes suggest the update may be affecting various models of iPhone with varying degrees of severity. A Reddit thread on the issue contains reports from people noting significant battery drain after updating, while others are actually seeing battery life improvements. There’s also a number of similar complaints from Twitter, calling the issue “absolutely ridiculous” or claiming rapid battery drain in a couple of hours.
