This IS the Avid L2: Re: [Avid-L2] Re: UPS power protocol?

Friday, October 11, 2013

Re: [Avid-L2] Re: UPS power protocol?

It might, but we have UPSs made by APC, MGE, Eaton and Sweex on our UPS shelf at the moment. They are all turned off and all have some form of charge indicator or at least fan some activity.
Ross

On 09/10/2013 17:16, johnrobmoore wrote:

Good to know. I did google and found a suggestion to not turn off the UPS because it will stop charging the battery. Your information contradicts this. I wonder if the charging of the batteries even when the UPS is off varies depending on the manufacturer?

--- In Avid-L2@yahoogroups.com, Ross Flint <rossf@...> wrote:
>
> Hi John,
>
> Since you haven't had any takers yet...
> The advice from APC is that you should always keep the UPS plugged in to
> the mains, but switch it off when it doesn't need to be on. Switching it
> off means that it doesn't output power, but it continues to charge the
> batteries as necessary. The advantage of switching it off, as I
> understand it, is simply that if the power should go out the battery
> will drain much more slowly than if the UPS is on (it has to power
> itself, even if everything else is off).
> Conversely, the best way to kill the batteries is to leave the UPS
> unplugged for a long time - this allows them to do a "deep discharge"
> which damages the cells.
>
> Hope that helps,
> Ross
>
>
> On 07/10/2013 17:06, John Moore wrote:
> > I recently inherited a rack which came with a UPS. I replaced the
> > batteries and it seems to be working fine. I'm curious if I should
> > always leave the UPS on even with the computer shut off or should I
> > power it down when the system is not in use. At work I always leave
> > the UPS on but I've found that almost every UPS I find on jobs has
> > dead batteries. Does anyone have a recommended procedure that might
> > extend the useful life of the UPS batteries?
> > John Moore
> > Barking Trout Productions
> > Studio City, CA
> > bigfish@...
> >
>