mi power bank 3 40,000mah : large capacity charging | high quality batteries | smart fast charge.
model: ym-309tyn
battery type: lithium-ion polymer battery.
input port: usb-c/micro usb
output port: usb-a/usb-c
cell capacity: 111wh 3.7v 40000mah
rated capacity: 18000mah (5v/3.6a)
product size: 148x70x72mm
package includes: mi power bank 3 40000mah, fast charge version, manual, micro-usb cable