[rescue] Any recommendations on rack-mount UPS?
pat at computer-refuge.org
Mon Oct 12 14:00:57 CDT 2009
On Monday 12 October 2009, Robert Darlington wrote:
> Consider Liebert. In my circle, APC sells junk. No matter what, if
> you care about it, I'd go with AGM batteries in the very least.
> You'll wish you did when the day comes and you need to get the old
> gel cells out, but you can't because they swelled up and are
> permanently locked inside the equipment.
The swollen battery problem seems to be caused by the UPS overcharging
the batteries. The beige APC units seem to be bad about this, but I
haven't seen it happen with the newer black units yet.
I second Liebert, and add Powerware/Eaton. They both seem to have nice
rackmount units. The only problem I have with the Liebert units that we
had at work were that replacing the batteries wasn't trivial - you had
to take the unit 1/2 apart to do it, which involves removing a couple
dozen screws, and reaching around live battery parts (a 96VDC battery
string) to disconnect the batteries. Other units probably aren't quite
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