The file 'Power Bank – 2x 18650 Batteries, Easy Print 3D Printer Model' is (stl) file type, size is 31.6KB.
My take on an easy power bank built.
Note: I found that this circuit does not charge the batteries to their fullest so it won't take advantage of their full potential. Non the less, these batteries have enough capacity to charge your phone more than once given the circumstances.
PowerBank_BOT.stl | 125.7KB | |
PowerBank_TOP.stl | 62.5KB |