The file 'Power Bank 2 Cell Or 4 Cell 3D Printer Model' is (stl) file type, size is 70.4KB.
Two-element or four-element power bank for charging phones or tablets.
Required:
USB A модуль
https://aliexpress.com/item/1005005853362101.html?spm=a2g2w.orderdetail.0.0.61e04aa6uiqR5l&sku_id=12000034581328926
2 or 4 18650 2500-3000 мАч 3,6 В