Single USB Power Bank case with Type C circuit. This case holds one battery of 18650 no lithium ion, Standard battery for power banks. We sell only case, with circuit and with battery also. Select the upper options. Colour of case may varry depending upon stock. Check out our video of how to assemble the items. 
Charging and discharging indication is also available.
for more battery backup choose 3000 mah battery.
Item inlcude 
Case
circuit if choose