USB C Battery Pack with QC3.0 and Overheat Protection. 3D Case for a Charger Board, fitted with reused 3.7V 8000mAh Lithium Polymer Packs, up to 2 in Parallel. The Cover is removable with 4 Screws, M3x20mm. The Charger Board has a Overheat Protection Circuit. Display shows Battery Charge remaining.
The Cover could be customised, using Onshape, or any other 3D Cad Programm.
Link to Charger Board:
https://a.aliexpress.com/_EQrECnj
The author marked this model as their own original creation.