What are the volts/amperes used, and/or USB PD supported (or other protocols) for use with android devices using usb c, or fast charging at 18w only with IOS and slow charging on android? (e.g. 12v1.5A / 9v2A / 5v2A or 5v3A etc..) Lack of information on the products, also on the Apple website. Thanks in advance