PD 3.0 Port: The output is 18w. The rv usb outlet provides 3x quick charging for compatible devices. 12 volt usb outlet can able to charge compatible devices up to 50% in just 30 minutes Quick Charge 3.0 Port: The output is 18w. 12v usb charger and provide 4x quick charging to compatible devices. 12 volt power outlet can able to charge compatible devices up to 80% in just 35 minutes