Unfortunate that happened.

This is the UPS I bought at Dayton, it is 
the USC-30001 3KVA version. Not exactly 
ancient but they do mention Windows XP in 
the documentation... After sitting two 
years the batteries still are at 12.3V so 
they seem good.

https://www.alliedelec.com/m/d/7d69ba74f4b
9fae0a183201909af4af8.pdf

73,

Gary
KA1J

> I have just had a most unfortunate 
experience with a UPS and when Gary
> said he had an old UPS he was 
considering, I shuddered.  As far as I
> know, older UPS units overcharge the 
battery continuously.  The best
> "problem" this seems to cause is having 
to replace batteries every
> three years or so.
>
>
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