Optimized Battery Charging on iPhone is on by default, but you can change that – here's what to do if you want to turn it off or back on again: With iPhone 14 models and earlier, go to Settings ...

With iOS 17.4, the iPhone 12 appears to have gained the ability to charge at full 15W speeds using non-MagSafe Qi2 chargers. Previously, non-MagSafe chargers were limited to 7.5W charging speeds.

For now, the iPhone 15 only supports wired reverse charging using USB-C. But you know Apple – they'll probably hype Wireless reverse charging like it's groundbreaking when they do release it in ...

Citing reader reports and its own tests, Macworld claims that the ‌iPhone‌ 12 is able to charge at 15W when using a Qi2 wireless charger after an update to iOS 17.4.