Check manual page of ups_battery_state

Generic UPS Device: Battery state
Distribution	official part of Check_MK
License	GPLv2
Supported Agents	SNMP

This checks monitors the following battery conditions, if available: "UPS is on battery", "Battery fault", "Battery to be replaced", "Low Battery", "Battery is not charging", "Battery is at low condition", "UPS is on bypass", "UPS is on battery backup time", "Overload"

If one of them becomes active, the check will yield a critical state alongside the reason(s) as check summary.

Discovery

One service is created for each UPS.