Les Mikesell wrote: > On 4/14/2011 2:13 PM, m.roth at 5-cent.us wrote: >> >>> Keep in mind that pretty much all of them that don't have multiple >>> battery/control modules and auto-switching (like the big APC >>> Symmetra's) >>> will have their own failure modes 3 or 4 years out if you just plug >>> them in and forget them. That is, they will cause downtime even if you >>> don't have a power failure. >> >> *shrug* You run the self-test every so often, or have apcupsd do it. In >> any case, when the "replace battery" light *first* goes on, order new >> ones, and replace 'em when they come in. > > I think we've had many where the "replace battery" light never came on > until after they had dropped power. Ok. We have mostly APC SmartUps 3000 rackmounts. They seem to work well. Btw, if you order *other* than OEM batteries, regardless of what the websites say, be *sure* that it's HR (high rate) batteries. About a year, year and a half ago, I had all kinds of grief over that. mark