Some neat alternatives to view the battery info on a UPS connected via USB.  Probably a way to do it through a serial port as well but I did not have that interface.

gwmi win32_battery

https://github.com/Pro/battery-monitor

https://www.e-apostolidis.gr/microsoft/powershell/auto-shutdown-hyper-v-usb-ups/

https://www.nirsoft.net/utils/battery_information_view.html