
Washington [US]: Apple started rolling out iOS 15.4 earlier this week, alongside iPadOS 15.4, watchOS 8.5, macOS Monterey 12.3, tvOS 15.4, and HomePod Software 15.4.
According to GSM Arena, a growing number of people are reporting bad battery life after the OTA. These reports include an iPhone 13 Pro Max only lasting for half a day or an older iPhone 11 dropping 80 per cent battery charge in 24 hours with two hours of screen on time.