why are the current UPSs so light?
gantte at bellsouth.net
Sat Feb 14 22:08:06 EST 2004
Joseph Mack NA3T wrote:
>I was looking at an APC 1000 at Staples this morning and was surprised to
>find that I can pick it up easily. There can't be much in there. Something
>that's going to supply 1000 VA, if it has 4 of the regular UPS 12V
>batteries in there, each one has to supply 20A which is a lot. Even if
>it's supplying 500VA, that's 10A/battery, and those little batteries don't
>do real well at 10A.
>The APC 700 I have at work I can barely move. I know the old ones have a
>lot of iron in them. Are the new ones all switchers with no iron?
>It's hard for me to believe that something as light as the one I picked up
>this morning can supply this much power.
>Anyone know what's going on?
Did you not see the fine print? The part that says that the squirrels
needed to run on
that little wheel needed to be supplied separately? ;-)
Sorry, I don't know exactly what's going on, but I do know that 1000 VA
/ 120 V = 8.33 A(mps)
You most likely were looking at the APC 1000VA BX1000 which specs at 23
$140 at Staples. Has 600 Watt max output
My experience with the units, they don't have a bank of batteries,
rather just one.
There is another, APX 1000VA Back-UPS Pro that's also got one battery.
This one is $559 at Staples and only has a 670 Watt max output. It's 43
Surfing the APC website didn't help much either... I'm with you, it's a
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