Apple’s iPhone 15 and iPhone 15 Pro models use a USB-C port instead of a Lightning port for charging and data transfer purposes, and the new port also lets you charge AirPods or Apple Watch directly on your iPhone 15 can.
If you don’t have access to a charger and your AirPods or Apple Watch battery dies, you can use your iPhone’s battery as a little extra instead of carrying around a battery pack.
Additionally, when you connect an iPhone 15 to another iPhone 15, the two devices communicate with each other to determine which iPhone has low battery and transfer power. So if your battery is low and your friend who has an iPhone 15 has a full battery, you can connect your girlfriend’s iPhone to your friend’s girlfriend’s iPhone to charge your girlfriend’s iPhone. .
On USB-C Android smartphones, if the Android device supports USB Power Delivery and is connected to an iPhone with a low battery level, the Android device can provide battery power. However, note that if your Android smartphone does not have USB PD, the results will be inconsistent. There is no way to predict which smartphone will be the charger and which smartphone will be charged.
what you need
To charge your iPhone, you’ll need a suitable cable, like the USB-C to USB-C cable for the new AirPods Pro 2 USB-C charging case or the USB-C Apple Watch charging pack, which comes in handy. This feature was not available in Lightning.
Unfortunately, when charging another device with the iPhone 15, charging is limited to 4.5W. While this is great for small devices like the Apple Watch, it doesn’t provide much power to an iPhone, so expect slower charging speeds if you use the iPhone-to-iPhone charging feature.