Phone is reciving only 10w from adapter with 5V and 2A ofc. But it says on screen "fast charge" yeah right... Cause im working  with electricity, i measure wi5h real tools and with app. Result is the same 5V and 2W wi5h 10w output. And yes i changed cabl3 and adapter. BTW SINCE I HAVE RN9 I NEVER IT CHARGES WITH 9V AND 2A. But on my wife's  Redmi Note 7 18w is working as it should 9V and 2A with 18w output.

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