iPhone 16 owners see massive battery drain in iOS 18

Apple’s Apple 16 and iPhone 16 Pro boast significantly improved battery life, but for some users, it’s been the opposite.
According to a large number of posts on Apple’s official forums and Reddit (via MacRumors), battery life has been very poor for some iPhone 16 and 16 Pro owners running iOS 18. The complaints actually started earlier, when iOS 18 it’s still in beta. , but the problem apparently hasn’t been fixed yet, bringing a new wave of disgruntled users as iOS 18 becomes more widely available.
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Most users who have experienced this problem say that their phones become too fast when they are idle, or when they are doing less demanding tasks like playing music. “I listened to music for the first 2.5 hours of my day (with less than 45 minutes of screen time) and noticed my battery was at 68 percent,” said one user on Reddit. “I’m comparing my work to my previous iPhone 14 that I had with my girlfriend. It’s at 78 percent while I’m at 45. Something’s wrong here,” said another.
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It’s worth noting, however, that some users aren’t experiencing these issues, and some (but not all) claim that upgrading to iOS 18.1 beta has fixed the issue.
Fortunately, this type of bug is more common with new iOS releases; we have seen similar issues resolved after a software update. Now it’s up to Apple to look into this and fix it.