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UPS Batteries...The Good, The Bad and The Ugly - Page 7

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Posted by Robert Morein on October 19, 2005, 11:40 pm
 




My guess: shock damage during shipping and handling would be higher if the
batteries fit loosely.
If they put in padding, they have to think about durability and resistance
to fire. Also, any insulating material would increase the chance the
batteries would go into thermal runaway.

I have a rack of Hawker Powersafe VM1500 cells. These way about 3000 lbs.
The cells fit very snugly into the rack. Apparently, the cell case itself is
not strong enough, by itself, for extended use. Cost was not a consideration
in this design.



Posted by Warren Weber on October 20, 2005, 12:02 am
 




I just had 2 Tripp Lite UPS fail the same way.  Charging voltage was 17.5
volts. I e mailed Tripp Lite and asked for a schematic so I could tweak the
charging voltage down. They would not reply so I replaced with UPC brand. I
hope these are better designed. WW



Posted by nospam.clare.nce on October 20, 2005, 2:47 am
 

On Wed, 19 Oct 2005 18:02:30 -0600, "Warren Weber" <hiview68NO
SPAM@1236bresnan.net> wrote:


In your dreams. They are just about as chintily designed and built as
TrippLite and the old Minuteman. Anywhere they can save a penny per
unit, they make a dollar per hundred

Posted by Me on October 20, 2005, 5:18 pm
 



Tripp Lite has always been very BAD for supporting theeir stuff.....
don't expect to get any help from them.....


Me

Posted by Ecnerwal on October 20, 2005, 2:03 am
 



Sulfation, mostly. Crystal growth pries the plates apart.


Yes, they did. They designed for you to have this problem (tight case,
overcharge batteries as a matter of course), so that you would buy
another hunk of junk UPS in a few short years. They are delighted that
you are having this problem, but wish you would not waste your valuable
time prying out stuck batteries, when you could just buy a new, cheap
UPS...


Sure - Buy an Outback inverter/charger and set up a battery bank (in a
large battery box, with space for them). Hang solar panels off of it, or
don't, as you prefer (works either way, cheaper without). Tain't cheap,
but it ain't inherently defective from the get-go (as most UPSs are),
either.

Some of the Trace stuff will work, cheaper, but the brains that made
Trace good are now at Outback, and (most, but not all) reports are that
the current management at Trace (aka Xantrex, aka the borg-like-company
that bought out most of the other inverter companies) is less than
delightful to deal with. Outback appears to be quite delightful to deal
with, and constantly improving things.

Not even a customer yet, but expect to be soon.

--
Cats, coffee, chocolate...vices to live by

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