Personally feel that as long as the device is matched with the display of fast charge, like your wireless charge is Xiaomi and mobile phone match it shows fast charge, my phone with the charger plug on the display of fast charge 1 hour or so full, the charging treasure that fast port, do not show fast charge also an hour full, sometimes with the hotel's power display fast charge also takes nearly two hours. Therefore, I feel that fast charging is not the recognition of the current size of the mobile phone, but the recognition of the charging device (even if the voltage cannot meet the fast charging).