2 hours
Apple xr uses 18w charger, full charge takes about 2 hours, Apple xr built-in lithium-ion rechargeable battery, support wireless charging
Charging still supports USB PD fast charging, after upgrading iOS12, the maximum charging power can reach 20W.
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iPhone8, iPhone8Plus, iPhoneX three models all support wireless charging function, the maximum charging power is 7.5W, but need to be paired with a wireless charger that supports fixed frequency voltage regulation to achieve 7.5W wireless charging, otherwise only 5W power charging. The charging head network found that for the iPhone8 with a battery capacity of 1812mAh, it takes about 5 hours to fill with a wireless charger supporting 7.5W charging power, and 7.5W can only be maintained for about 10 minutes.
Two hours, the screen shows that you can not charge to 100%