DIY Powerbank Nov 12, 20181 min readYouTube Tutorial:- https://www.youtube.com/watch?v=sroCdPDatlkMaterials:- 5v step up USB Module:- http://amzn.to/2qUZsl4 Lithium Battery Charging Module:- http://amzn.to/2pOl8ze Switch:- http://amzn.to/2quUaLB plastic container wires Circuit:-