The iPadmini supports 20w wired fast charging (up to 30w) and does not support wireless charging.
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In the 0% power off state, it shakes the Apple 5V 2.4A charging mode, less than 1 minute after the automatic boot converted to USB PD fast charge for charging.
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When charged for 52 seconds, it reached 18.83W; Then the power fell back and gradually increased, reaching 19.4W in about 38 minutes; Then the power gradually decreased, and after several large fluctuations, the charge was completed in 2 hours and 34 minutes, and the power fell to 0.07W. The maximum power of the full charge is 20.88W.