The mini server based on the Raspberry Pi 4 board includes a UPS module with two 2500 mAh batteries that can last up to 1.5 hours and a mini OLED screen that displays UPS, IP, CPU, RAM and storage info. It also features a 3D printed case with transparent side panels and even a CPU heatsink with side-mounted fan.
https://www.notebookcheck.net/This-mini-Raspberry-Pi-server-comes-with-built-in-UPS-and-OLED-stats-display.551035.0.html
So cool.
Use Panasonic NCR18650A or the Orbtronic version for more power!
Proofread. Take 5 minutes and proofread.
It's not just you, everyone seems lacking these days in just looking over or, better yet, having a second set of eyes look over their work before hitting publish.
DYI vs. DIY
Good luck.
Making a hatch underneath would provide battery exchange and building is much safer, 18650 cells are not forgiving If something goes wrong. Not much room to work on with the standoffs so close though