The top surface of the mobile power supply from left to right is: USB-A output interface, USB-Micro input interface, LED indicator (bright white when working), USB-C bidirectional fast charge interface, USB-A output interface.
Name: Xiaomi mobile power 3 20000mAh USB-C bidirectional fast charging version
Battery type: lithium-ion polymer battery
Battery power: 74Wh 3.7V 20000mAh
Rated capacity: 12000mAh (5V\/3.6A)
Model: PLM18ZM
input
usb-c: 5v \/ 3a, 9v \/ 2a, 12v \/ 1.5a
Micro-USB:5V\/2A, 9V\/2A, 12V\/1.5A
output
Multi-port input: 5V\/3.6A
usb-c: 5v \/ 3a, 9v \/ 2a, 12v \/ 1.5a
usb-a: 5v \/ 2.4a, 9v \/ 2a, 12v \/ 1.5a