MI 20000mAh 3 Pro Power Bank

• Capacity: 20000 mAh
• Cell Type: Lithium-polymer
• Cell Capacity: 74 Wh (20,000 mAh x 3.7V)
• Charging: 45W dual way fast charging
• Port Number: 3, two USB-A ports along with a USB Type-C port
• USB-A Output (Apple 2.4A, QC 2.0/3.0, Huawei FCP, Samsung AFC): 5V-2.4A, 9V-2A, 12V-1.5A
• USB-C Output (Apple 2.4A, QC 2.0/3.0, Huawei FCP, Samsung AFC, USB PD): 5V-3A, 9V-3A, 12V-3A, 15V-3A, 20V-2A, max 45W
• Total Output multi-port: 5V-5.4A, 9V-3A, 12V-3A, 15V-3A, 20V-2A
• USB-C Input (QC2.0 or USB PD): 5V-3A, 9V-3A, 12V-3A, 15V-3A, 20V-2.25A, max 45W
• Recharge Time: 2.5hrs with 45W charger, 6 hrs with 9V-2A charger or 10 hrs with 5V-2A charger
• Material: ABS Plastic, ceramic-like gloss finish
• Low power support for smart Wearables
• 9 layers of circuit chip protection
• Size: 153.5 x 73.5 x 27.5 mm

The Mi Power bank 3 Pro comes with three ports in total, as opposed to the two ports found on the 10000mAh Mi Powerbank 2 Pro model. There are two USB-A ports along with a USB Type-C port. The Type-C port can take 45W (15V/3A) input as well as output, while the USB-A ports max out at 18W (again both input/output at 5V/2.4A, 9V/2A, 12V/1.5A). It can charge a number of laptops through its Type-C port including some of Apple’s MacBook Pro and Air models and Huawei’s Matebook models.

When both the USB-A ports are in use, the output is maxed out at 15W each (5V/3A). Note that the power bank supports pass-through charging, so it can charge other devices while being charged. Xiaomi adds that the 11 hour charging time (with a regular 10W charger) for the power bank goes down to just 4.5 hours with a 45W charger.