Regarding connection loss as such, ages ago I've had an UPS whose controller rebooted or something like that when inverter went on/off, causing a reconnection and different numbers like (significantly) decreased battery charge and runtime left. This does not quite fit your case of knowing OB state though.
Jim On Tue, Dec 23, 2025, 21:54 Michael Hughes via Nut-upsuser < [email protected]> wrote: > I'm having problems with one of my UPS (BEST MD500), the upsd has stale > data, we get a power hit and upsmon give the following message: > > upsmon[918]: UPS [UPS1@localhost] was last known to be not fully online > and currently is not communicating, assuming dead > > upsmon starts a shutdown and then upsd gives a data is no longer stale, > but the shutdown still happens. Or a way to have upsmon wait awhile > before starting the shutdown? > > Is there someway to stop the shutdown when this happens? I'm still > debugging why the driver is loosing communication with the UPS. > -- > Michael > _______________________________________________ > Nut-upsuser mailing list > [email protected] > https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser >
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