Hi Kurt, are you still facing this issue? As far as I recall, I've tested 5S not long ago (Jessie + NUT 2.7.4), and everything was fine...
thanks and cheers, Arno -- Eaton Data Center Automation Solutions - Opensource Leader - http://42ity.org NUT (Network UPS Tools) Project Leader - http://www.networkupstools.org Debian Developer - http://www.debian.org Free Software Developer - http://arnaud.quette.fr