DIY powerbank using 18650s and ip2366 module

This DIY power bank uses 18650s and an IP2366 module. This project features 140W power delivery through USB-C using the IP2366 module and includes four USB-A ports, as well as a voltmeter powered by an external 9V cell. With 16 18650s in a 4-series, 4-parallel configuration, this modular design allows for each cell to be replaced. I am currently prototyping 3D-printed battery holders and a case.