Please see: http://networkupstools.org/ (NUT)
https://github.com/clearos/app-ups-server (powered by NUT) was never ported to ClearOS 7.x
APC Back-UPS 700 was purchased. All systems go!!!
Step 1: Get it to work with existing APC app: https://gitlab.com/clearos/app-apcups and learn how this works. This should be easy. The app will give you stats on your unit.
Step 2: Port NUT to ClearOS 7.x: https://github.com/clearos/app-ups-server This will be a good learning experience. Not easy. But very valuable for the long term. This is an important, but not urgent task.