I recently came across the same problem and ported a similar php script to python instead: https://github.com/LeoVerto/telegraf-apc-ups-status

Incase anyone didn’t know but Linuxserver.io creates a shitload of docket containers for a NAS solution called Unraid. Many of the containers are well maintained and stable. One of the most user friendly network attaches storage solutions I’ve ever used.

Interesting how 'Ups' didn't register with me as 'UPS'. Influx with grafana is nice to graph a lot of stuff, nice that you can do a electricity bill estimate too.