Apple's iOS 18 brings a handy new feature that warns users when they’re charging their iPhones with a slow charger.

Apple released a new, more powerful version of the MagSafe charger during its September iPhone 16 event today. The puck will be compatible with all iPhones and any Qi2 device, but only the new iPhone 16 models are listed as supporting the fastest 25W wireless charging rate.

Apple has included a new battery feature in iOS 18 that comes in handy. When you have a charger running too slowly, open the battery graph in the settings. If your phone is using a slow charger, you'll see a warning in the form of an orange-colored line in the battery graph;