GTrusted

The travel-friendly Innergie PowerGear USB-C 45 can be used to charge most USB Type-C devices supporting USB Power Delivery technology including the Mi Notebook Air 13.3". Here we use a USB Type-C to Type-C cable to link up both the Innergie charger and Xiaomi laptop on a remaining 2% battery charge.

The USB Power Delivery negotiations display the Innergie PowerGear USB-C 45's power profiles as 15 watts (5 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps) and 45 watts (20 volts @ 2.25 amps) over the USB Type-C connector.

We can see that the Mi Notebook Air 13.3" requests the Innergie charger to supply 45 watts (20 volts @ 2.25 amps). 

We can confirm from the power graph below that the Mi Notebook Air 13.3" pulls around 43.8 watts (19.9 volts @ 2.2 amps) from the Innergie PowerGear USB-C 45 when the laptop's battery is 2% charged.

Although the Mi Notebook Air 13.3" can support charging with third party chargers like the Innergie PowerGear USB-C 45, it still enjoys optimal power delivery from its own power adapter up to 65 watts (20 volts @ 3.25 amps).