In article <199506080302.PAA19017@tao.sans.vuw.ac.nz>,
Jorgen Lundman  <lundman@sans.vuw.ac.nz> wrote:
> About UPS' etc, we have a little cute Power Technologies UPS, that has a
> (supposedly) RS232 port. (Pulling voltage on the wierdest pins) but we
> wrote a little NetBSD daemon that listens on a serial port for the
> power-down signal, starts a shutdown. (and stops it if power is back) etc
> etc.
> 
> Lemme know if this sounds like what you are after, it's only a 30 minute job
> but works well.

As I said, at a minimum I need run time left and charge status
information, and preferably more.  I can get a power fail indicator from
just about any UPS.