Upgrading to iOS 18 has severely impacted my iPhone's battery life, leaving it often below 40% by lunchtime and forcing me to rely on power banks. After struggling with consistent battery drain and ineffective Low Power Mode, I investigated under the Battery settings. Despite looking at app activity data, nothing unusual stood out except for high usage by the Home & Lock Screen. After thorough testing, I discovered that the Apple Intelligence feature was a key factor in the excessive battery consumption, leading to ongoing frustrations with the iPhone's performance.
Ever since upgrading to iOS 18, my iPhone's battery life has taken a serious hit, impacting my daily usability and increasing reliance on power banks.
After investigating the battery drain issues, I discovered that Apple's Intelligence feature was a significant contributor to the excessive battery usage.
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