iPhone Battery

Apple’s latest iOS 18.4 update finally lets you decide exactly how full your iPhone should get during every recharge. Instead of the old one-size-fits-all “80 % cap,” you can now stop at 80, 85, 90, 95, or 100 percent—giving you a simple way to slow battery wear without living on a charger.

The charge-limit slider appears on iPhone 15, 15 Plus, 15 Pro, 15 Pro Max and all newer models. Earlier devices stick with the classic Optimized Battery Charging toggle.

Maintaining the health of an iPhone battery is important, particularly as the device ages. iPhone models from the 14 and 15 series currently face the highest out-of-warranty battery replacement costs at $99. Recent updates in March 2023 have also seen a $20 increase for older models, setting the replacement costs at $89 for the iPhone 13 through iPhone X, and $69 for the iPhone SE, iPhone 8, and earlier models.

Automations can be used to invoke a wide variety of actions automatically on your iPhone. With Automations, iOS is programmed to react to certain conditions or data detected on your device. One example of a useful Automation conserves battery power after the remaining power level drops to a predetermined threshold.