iOS 15.4 update prompting reports of battery drain problems
Summary
If you own a compatible iPhone then the iOS 15.4 update should now be available to you, complete with new emojis, the ability to use Face ID with a mask, and a host of bug fixes. As reported by Phone Arena and others, a certain subsection of users on Twitter and Reddit are saying that their handsets have been losing battery life much more quickly since the iOS 15.4 update was applied. This is by no means a universal problem, with other Reddit threads and Twitter posts reporting better battery life since the iOS 15.4 patch was applied. There are a few certainties in life, including death, taxes, and reports of excessive battery drain after a new iOS update. So far the only official response from Apple has been to tell users to sit tight, and to assure them that variations in battery life are normal for up to 48 hours after a new version of the operating system is installed.