DIY Wifi Router UPS 18650

Update 5-Sept-2024 Some Community Member ask for STEP file for further modification. I                                          Uploaded the STPE file.

This is the diy wifi ups using 18650 cells and wifi router module. I uploaded things you need. You'll need a wifi ups module, 2 dc jacks, 4x18650 cells (solder them in parallel is ok but spot welding is recommended) and couple of wires.