The latest iOS 18.3 update was killing my iPhone’s battery – until I disabled this popular feature
Jason Hiner/ZDNETEver since upgrading to iOS 18, my iPhone’s battery life has taken a serious hit. Things only got worse with subsequent releases, and nothing has been improved by the latest 18.3.1 security patch. By lunchtime, my battery is rarely above 40%, and I’ve had to make power banks my new best friends.Also: Can rebooting your iPhone really make it run faster? I tried it every day to find outDay or night, the battery drain has been relentless — far worse than anything I remember with previous updates. Even Low Power Mode barely makes a difference, leaving me constantly searching for a charger.I decided to investigateSo, a few weeks ago, I began looking into the issue.For any battery drain problem, the first place I always look is under the Battery screen in Settings. This section is a treasure trove of information, not only related to the battery but also to the apps that are running and consuming power. Two charts are displayed here: Battery Level, which shows how the charge level changes at 15-minute intervals, and Activity, which uses a bar chart to illustrate which apps have been active and using battery power in hourly intervals. You can tap on the bars for a deeper dive into what’s been happening on your iPhone during that period.But other than elevated usage by Home & Lock Screen (basically, any activity on the lock screen, such as notifications or widgets), there was nothing out of the ordinary. I did try disabling the iPhone’s always-on display — the setting to do this is under Settings > Display & Brightness > Always On Display — but to no avail.The problem persisted. More