In some instances the UPS would not completely discharge the new batteries. In other instances it would not completely charge following a discharge. APC didn't give us a good explanation for it, and I didn't have the time to reverse engineer their circuitry so we just sent the UPS in. We didn't always have to do this. There was no corrilation between battery/ups age and this occurance. If we got 3 minutes out of em at full load we were happy and didn't send em in. The only possible explination is that the EEPROM might have taken a static hit while we were digging inside. So use ESD precautions while digging around inside. Option 12 on this list: http://159.215.19.5/kbasewb2.nsf/For+External/0E34F49857898AA9852566C200516E58?OpenDocument They had us do this before sending in bad units. Chris Gahlon Lan Barnes wrote: > Christopher Gahlon wrote: > > > > Any place that sells sealed lead acids should be fine. Batteries Plus comes to > > mind. > > http://batteriesplus.com/locator.html > > > > Just a head up though. Back when I was working for Mn/DOT we used to replace > > lots of batteries in UPS and sometime APC units had to be returned to the Mfgr > > for "Calibration" for a nominal fee. The UPS didn't work for very long, if at > > all, with the new batteries. So if it has very short life on the new ones > > that's probably why. It's not that hard to program... I used to work on the > > BBU that went in the power supply for the AS/400 and that thing worked > > slick. (The power supply it plugged into was another horror story though... > > When it fails it sometimes shoots flames!! ;-) Anyway, I'm rambeling on here. > > The fee for calibration was cheap compared to the shipping charges.... > > > > This isn't clear to me; can you clarify? If I buy a new battery for a UPS, > are you saying that it needs to be "calibrated:" by the manufacturer before > use, or the new battery will not last? > > -- > Lan Barnes lanbarnes at earthlink.net > Icon Consulting, Inc 858-273-6677 > > Never help a child with a task at which he > feels he can succeed. > - Maria Montessori > _______________________________________________ > tclug-list mailing list > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list