Re: APC Batteries.

["Andy Whitfield" <andywhitfield2002@xxxxxxxxxxx>]

The UPS would have switched off way before the batteries were deeply
discharged.
I'm guessing you left them discharged for a while before trying to
charge them?
Never leave lead acid batteries discharged for more than a day or
two.
Andy
--- In ukha_d@xxxxxxx, "domdevitto" <dom@...> wrote:
>
> <idiot alert!>
> I modded a 700 to use 2x 12v car batteries, in series, and got
great
> run time (over 2 hours, on my rack), but the first really deep
cycle
> killed both the batts.
>
> The APC 700s are pretty smart, and learn the charging profile of
the
> batts, but it'll still let them discharge fully - which in my case
was
> too much.
>
> Gel cells don't mind deep-cycle, so this should work perfectly.
and
> you don't need any baking powder :-) [don't ask!]
>
> Dom
> --- In ukha_d@xxxxxxx, Wayne <Wayne@> wrote:
> >
> > Hi all,
> > I have a APC SmartUPS 700 with batteries that the APC thinks
needs
> to be
> > replaced. I have managed to get hold of a set from an APC
SmartUPS 750.
> >
> > Does anyone know if they are compatible at all?
> >
> > They physically fit the UPS and seem to charge and keep the
power to a
> > pc when I pull the mains connection. The only thing that seems a
little
> > 'odd' is when I pull the power and go onto battery, the ups
normally
> > beeps to let you know something not right - which it now doesn't
> seem to.
> >
> > One other difference - the newer battery set had a connector
block that
> > was attached to the battery red/black spade connectors - when
they were
> > pulled from the 750 it has what looked like a 'quick connector'
> block at
> > the back of the battery bay. My 700 just has two leads that
connect to
> > the black/red battery terminals that disappear into the ups..
> >
> > There isn't any markings on the newer set of batteries that
suggest
> size
> > or rating otherwise I could compare.
> >
> > any ideas?
> >
> > Cheery
> > Wayne.
> >
>