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BESTUPS(8) Network UPS Tools (NUT) BESTUPS(8)
bestups - Driver for Best Power / SOLA (Phoenixtec protocol) UPS equipment
This man page only documents the hardware-specific features of the bestups driver. For
information about the core driver, see nutupsdrv(8).
bestups was designed to monitor Best Power UPS hardware like the Fortress, Fortress Tele-
com, and Patriot Pro. It also recognizes and supports SOLA units such as the 520 and 620.
Other UPS hardware using the Phoenixtec protocol should also work, but they will generate
a warning since their battery information is not known.
This driver does not support some older Best/SOLA units. Try the bestfort driver if this
one does not detect your UPS.
This driver does not support any extra settings in the ups.conf(5).
The battery percentage is derived from the voltage data that the UPS returns, since the
UPS doesn't return that value directly. On some hardware, the charge will remain at 100%
for a long time and then drops quickly shortly before the battery runs out. You can con-
firm from the BATTVOLT readings that this is a problem with the UPS and not this driver.
Similarly, the float from the charger in some models forces the battery charge percentage
back up to 100% immedately after the UPS goes back on-line, so you can't tell when it is
Finally, some models give one value for the battery's nominal voltage and yet actually
have a nominal voltage slightly below that. This leads to things such as the perpetual
98.7% charge on the author's Fortress 750, even when it's been charging for weeks.
The core driver:
The NUT (Network UPS Tools) home page: http://www.exploits.org/nut/
NUT mailing list archives and information: http://lists.exploits.org/
Tue Jul 30 2002 BESTUPS(8)
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