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Huawei Mate 50 Pro can support OTG reverse charging, the maximum output current when reverse power supply is 1A\/5V, in addition, it also supports 50W Huawei Wireless Super fast charge, you need to buy Huawei Super fast charge vertical wireless charger (Max 50W) or Huawei Super Fast charge wireless car charger (Max 50W), And use with a specific 66W Huawei Super Fast charging kit