The Xiaomi Mi Power Bank 3 has two USB-A ports and one USB-C port. The two USB-A ports can output at 5V/2.4A, 9V/2A, 12V/1.5A if only one port is used, or 5V/3A when both are. The singular USB-C port can out output at up to 45W. The Xiaomi Mi Power Bank 3 can charge in just 4.5 hours if you have a 45W charger. Using a regular 5V/2A charger will take about 11 hours to charge, while an 18W charger will take 6.5 hours.
Source: xda-developers
Hopefully a cheaper alternative to Xiaomi ZMI 10 Power Bank.
On the way!