Re: UPS lifespans

On 5/29/2024 8:07 AM, Dan Purgert wrote:

On 2024-05-29, Don Y wrote:

/Neglecting battery issues/, any observations on the typical lifespan
of the electronics in modest sized (1500VA, sine, line-interractive)
UPSs?  Or, common faults?

 The handful that I've had (all APC, so ... "meh") are all 5-10 years old
at this point, and on their second or third set of batteries (3 year
replacements, on average; so the 5YO one is nearing the "replace the
battery" threshold). One is probably closer to 15, come to think
of it ... but lightly loaded, so has only needed two replacements (~6
years on the replacements)

I've no idea how old these are; I rescue them -- often NIB -- and rescue
replacement batteries as well.  They will be at least a few years before
covid...
But, I suspect there is a manufacturing date on them, somewhere.  Getting
*to* it will be the challenge (I keep them in largely inaccessible places
based on the assumption that I don't really have to interact with them
any more than I'd have to interact with the AC receptacle into which they
are connected)

I don't particularly baby them (though do try to keep them down to about
75% of their rated capacity), but the power coming in isn't all that
"bad(tm)" either; which probably helps.

Ditto, here.  I use them primarily as "switched, remotely controllable,
outlet strips" and to address the momentary "glitches" that occur -- some
with interesting periodicity.
OK, I will assume they will likely be around for a while, yet, so worth
maintaining.  I'd REALLY not want to drag the bigger ones into service,
yet, as their battery packs are huge investments (and not the sorts of
things I can "rescue")
Thanks!