Upgrade Have an AC Output Function:This Portable Power bank Built-in 110V/100W AC Outlet,with 27000mAh Lithium-ion Batery Pack,Have Enough Power to Charge Most of Your Devices.It Will Keep Your Laptop on the go. Upgrade 3 IN 1 Portable Charger: As an Ordinary Power Bank When You Do not Use the AC Outlet, It Has two USB Output Port and one Type-C Output Port to Power for Your One or Two Devices Freely.2 USB Input and 1 Type-C Input Ports can be Charged Itself at the Same Time.(Please note: Charging the notebook can only output with an AC port)