Ok, so another apc UPS 3000 complained about bad batteries, and I changed
them out from the same order that I'd gotten in a couple of months ago.
The APC SmartUPS 3000 started connecting and disconnecting the USB
connection. I brought down and up the service, no joy.
Finally, after googling, I found a *completely* undocumented way to start
apcupsd, that a few years ago someone was told to try, so as to log
debugging info, to send to a developer:
apcupsd -d1000 -T
I've just skimmed the man page, and the online docs, and there is *no*
mention of either parm. I found nothing in the logs.
However, when I kill -HUPped it, and restarted the service, the USB stuff
had stopped. Ok, one problem down.
The change battery light's still on. I'll see if it still is in the
morning. One thing I did note, while skimming the docs, and comparing my
results from apcaccess, was that while the nominal voltage for the APC
SmartUPS 3000 is 48V, the new batteries are showing 55.4V. Anyone have any
idea if this could be why the replace battery light's on - it's more
than
5V difference?
mark
m.roth at 5-cent.us wrote:> ...that while the nominal voltage for the APC > SmartUPS 3000 is 48V, the new batteries are showing 55.4V.lead acid batteries are 2.1-2.15V per cell when fully charged, and the trickle charging float voltage is more like 2.3V per cell. 2.3 * 6 cells/battery * 4 batteries == 55 V to read the batteries charge state, you would need to disconnect them from the charger(UPS) for about 4-6 hours before reading the voltage, this lets the surface charge dissipate. After doing this, you should see 12.6-12.8V per 12v battery, or 50.4 to 51.2V for your stack of 4 * 12V. All these voltages assume 68-72F battery temperature. 48V is nearly totally discharged
on 3-2-2010 2:13 PM m.roth at 5-cent.us spake the following:> Ok, so another apc UPS 3000 complained about bad batteries, and I changed > them out from the same order that I'd gotten in a couple of months ago. > > The APC SmartUPS 3000 started connecting and disconnecting the USB > connection. I brought down and up the service, no joy. > > Finally, after googling, I found a *completely* undocumented way to start > apcupsd, that a few years ago someone was told to try, so as to log > debugging info, to send to a developer: > apcupsd -d1000 -T > I've just skimmed the man page, and the online docs, and there is *no* > mention of either parm. I found nothing in the logs. > > However, when I kill -HUPped it, and restarted the service, the USB stuff > had stopped. Ok, one problem down. > > The change battery light's still on. I'll see if it still is in the > morning. One thing I did note, while skimming the docs, and comparing my > results from apcaccess, was that while the nominal voltage for the APC > SmartUPS 3000 is 48V, the new batteries are showing 55.4V. Anyone have any > idea if this could be why the replace battery light's on - it's more than > 5V difference? > > markThe light might stay on until either the next battery test, or re-setting the stored battery change date. I never have been able to get the date changed from *nix. I usually used a windows laptop with APC software installed. It can probably be done, just never spent a long time trying. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 259 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20100316/f48858ea/attachment-0002.sig>
> on 3-2-2010 2:13 PM m.roth at 5-cent.us spake the > following: >> Ok, so another apc UPS 3000 complained about bad batteries, and I >> changed them out from the same order that I'd gotten in a couple of >> months ago. >> >> The APC SmartUPS 3000 started connecting and disconnecting the USB >> connection. I brought down and up the service, no joy.<snip>>> The change battery light's still on. I'll see if it still is in the >> morning. One thing I did note, while skimming the docs, and comparing my >> results from apcaccess, was that while the nominal voltage for the APC >> SmartUPS 3000 is 48V, the new batteries are showing 55.4V. Anyone have >> any idea if this could be why the replace battery light's on - it's more >> than 5V difference? >> > The light might stay on until either the next battery test, or re-setting > the stored battery change date. I never have been able to get the date > changed from *nix. I usually used a windows laptop with APC software > installed. It can probably be done, just never spent a long time trying.Thanks, but no joy. I had no problem using apcupsd to reset the battery change date... but that didn't do it. I've done numerous battery tests, both from apctest, with apcupsd down, and by pushing the button. *sigh* We've ordered another set of batteries for one of these, this time the exact same make and model that were in them, though still not the full OEM cartridge, and we'll see if it does need HR (high rate) batteries. If so, then what was advertised as a replacement kit is untrue. mark