"BrianAlex" wrote in message
...
On Jan 5, 7:03 pm, "hr(bob) "
wrote:
On Jan 5, 7:26 pm, "John Keiser" wrote:

In my experience, the batteries last no more than 5 years. If this is
the
original battery, its time is likely up. Test under load or with a
substitute and replace for $25 or so.

--
Remove -NOSPAM- to contact me.

Unless you test the battery under load, you don't really know much of
anything. If it is too hard to connect the battery to the UPS when
the battery is out of the UPS unit, use an automobile back-up light or
something similar, but smaller than a headlight, and see if the
voltage really holds up under load.

OK, glad I talked to you guys. I pulled the battery and found an
automobile tail-light bulb and it wouldn't even light that up! So I
then checked to see if the leads that normally connect to the battery
were supplying current and they are so I guess I'll just find a new
Bat. I'm used to testing my AAA batteries and if they read good they
are good, I see it's different with these lead ones. Thanks a lot
guys!

When you source a replacement battery, make sure that you get one with the
correct size terminal blades, not one of the 'alarm-style' types where the
terminals are only about half the width. These UPSs pull HUGE amounts of
current from the batts - witness the 40A automobile fuse that you found in
there - even when the load is light, and it is essential that there is a
really good connection to the battery, otherwise, even the small volt-drop
that you get from a less-than-ideal connection, is enough to fool the
control electronics into thinking that the battery is on its last legs,
which then makes the UPS shut back down, bleeping forlornly at you ... Trust
me, been there ... :-)

Arfa