This power Bank case can contain max 12 piece of 18650 lithium ion battery. The circuit support max fast charging of 2A. Its has 2 USB port of 5v 2A charging and type B charging port. Power led to light up more area than other power banks. Circuit also has switch to check its battery level. The cover is removable one (screw type. You can open the case or can close it using 4 screw.
Circuit Link - https://www.myinnovation.in/product-page/2-usb-power-bank-module
 
Package Include -
Power bank case 
Circuit
(Battery Not Include)