Xiaomi 10000mAh Mi 18W Fast Charge Power Bank 3 (Black)

Product dimensions: 147.8 x 73.9 x 15.3 mm
Battery type: Lithium polymer battery
Battery capacity: 37Wh 3.7V (10000mAh)
Rated capacity: 5500mAh (5.1V/2.6A)
Input port: Micro-USB / USB-C
Output ports: USB-A x 2
Input: 5V/2.1A, 9V/2.1A, 12V/1.5A (18W MAX)
Output:

USB-A x1: 5V/2.4A, 9V/2.1A, 12V/1.5A (18W MAX)
USB-A x2: 5.1V/2.6A
Charging time:

~4 hours with 9V/2A or 12V/1.5A charger
~6 hours with 5V/2A charger