On Mon, 07 Dec 2009 14:09:42 -0700, D Yuniskis
wrote:

Hi,

I don't have anything other than "gut feel" to resort to
as evidence but it sure *seems* like most UPS designs
EAT batteries!

Define "most".


We rarely have outages here. So, there is no real
draw on the batteries in our UPS's. So, they should just
be on float charges.

A quality UPS (not one of those cheap Chinese POS units) will
regularly exercise the batteries, running discharge/charge cycles and
measuring the results. Then the UPS will tell you the condition of the
batteries.


Yet, the batteries seem to wear out far too frequently, IMO.


So you keep a mystery what brand and model UPS you are using...