3D printed Nice Power bank case
max 4 18650cells capacity
2USB power bank circuit
5V 2A max power
 
This is a power bank case of 2usb type B power bank circuit. Its a DIY kit, you need to make the power bank itself. Battery is not provided with it. It does not have any spring system. Customer need to solder or spot the battery to join the circuit. Max 4cells of 18650 lithium ion 3.7volt can be attached with it.
 
Package Inlcude -
1 x power bank case
1 x circuit