Although not a killer-feature, the feature of wireless charging (present on all iPhones from 8 onwards) a hand on the wheel in some situations is either to leave your device lying on the nightstand or standing on a standnext to the computer while you work.
Since iOS 11.2, all iPhones that support wireless charging can receive recharges at up to 7.5Was long as your charger is compatible with this rate. However, the staff of ChargerLab noticed something strange when you updated your iPhone 11 to iOS 13.1.
The site staff had measured the new device's wireless recharge capability when it was still running iOS 13.0 and didn't notice any quirks: the charger started to emit more than 10W of power, and the device recharged in the traditional 7, 5W By upgrading the smartphone to iOS 13.1, however, everything changed: the charger started powering about 7W for the device, which only received it at 5W.
This meant a difference in the total loading time, as we see in the graph below. While the iPhone 11 running iOS 13.0 was fully recharged at 3:19 pm, the same device running iOS 13.1 needed 4 hours to reach 100% battery power, which is about 30% slower charging.
The site team found that the behavior was repeated with almost every wireless charger available in the newsroom, except for some devices from brands like Belkin, mophie, NATIVE UNION, Anker and Logitech all of them sold in Apple stores. All accessories that were able to recharge the device at 7.5W use a fixed frequency voltage regulation, which is recommended by Apple.
There is not yet an official statement from Ma on the case, but for now, it is more likely that the company simply has disabled faster wireless charging on chargers that do not have fixed frequency voltage regulation. Anyway, we will have to wait to see if this is the case or if we are simply talking about an iOS 13.1 bug we are waiting for.