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<p>Hi,</p>
<p>I am considering purchasing an <strong>APC Back-UPS Pro
BGM2200B-GR (2200 VA / 1320 W)</strong> for a Debian/Proxmox
environment and would like to clarify its level of support in NUT
before purchasing it.</p>
<p>I found real-world reports showing that this exact model is
detected by <code>usbhid-ups</code> and that basic monitoring as
well as automatic host shutdown have been used successfully.</p>
<p>What I still need to know is whether the <strong>complete
unattended power-failure/recovery cycle</strong> works reliably
with this model.</p>
<p>My intended setup is:</p>
<ul>
<li>
<p>APC BGM2200B-GR connected by USB to a Debian/Proxmox host</p>
</li>
<li>
<p>this host acts as NUT primary/server</p>
</li>
<li>
<p>additional Proxmox hosts, a QNAP NAS and other systems
receive UPS status over the network</p>
</li>
<li>
<p>non-critical systems shut down first</p>
</li>
<li>
<p>the final Proxmox host shuts down last</p>
</li>
</ul>
<p>Specifically:</p>
<ol>
<li>
<p>Has the <strong>BGM2200B-GR</strong> been tested directly
with current NUT versions and <code>usbhid-ups</code>?</p>
</li>
<li>
<p>Are the following readings known to work reliably?</p>
<ul>
<li>
<p><code>OL</code> / <code>OB</code></p>
</li>
<li>
<p><code>LB</code></p>
</li>
<li>
<p>battery charge</p>
</li>
<li>
<p>estimated runtime</p>
</li>
<li>
<p>UPS load</p>
</li>
<li>
<p>input voltage</p>
</li>
</ul>
</li>
<li>
<p>Does <code>upsdrvctl shutdown</code> work correctly with
this exact model?</p>
</li>
<li>
<p>Does the UPS expose a command equivalent to <strong><code>shutdown.return</code></strong>
so that:</p>
<ul>
<li>
<p>the connected hosts shut down cleanly,</p>
</li>
<li>
<p>the UPS then switches off its battery-backed outlets,</p>
</li>
<li>
<p>and the outlets automatically become powered again when
utility power returns?</p>
</li>
</ul>
</li>
<li>
<p>If <code>shutdown.return</code> is not available, is there
another reliable NUT command or shutdown mode for achieving
this behaviour on this UPS?</p>
</li>
<li>
<p>Are <code>load.off</code>, <code>load.off.delay</code>, <code>load.on</code>
or equivalent instant commands supported?</p>
</li>
<li>
<p>Are there any known USB/HID stability issues with this exact
model during long-term use?</p>
</li>
<li>
<p>I found reports from Unraid users where the BGM2200B-GR works
with <code>usbhid-ups</code>, but also at least one report of
sporadic stale-data / USB communication issues. Is this known
to be a UPS firmware issue, a Linux USB/HID issue, or
something specific to the Unraid plugin?</p>
</li>
<li>
<p>Is there any known reason not to use this model as the NUT
primary UPS for multiple network clients?</p>
</li>
</ol>
<p>I have <strong>not purchased the UPS yet</strong>, so I cannot
currently provide <code>lsusb</code>, <code>upsc</code>, <code>nut-scanner</code>
or debug output.</p>
<p>The main question for me before purchase is whether this model
can reliably perform the full cycle:</p>
<p><strong>utility power fails → NUT clients shut down → final host
shuts down → UPS output turns off → utility power returns → UPS
output turns back on automatically.</strong></p>
<p>Any confirmation from users who operate this exact model would be
very helpful.</p>
<p>Thank you very much.</p>
<p><br>
</p>
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<br>
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