[PLUG] Do it yourself Linux UPS...

Patrick J. Timlick p.j.timlick at ieee.org
Sun Aug 16 22:06:38 UTC 2009


The AGM batteries below are sealed.  So no hydrogen (or anything else)
emissions while charging.  They can also be tipped or mounted in any
position with no danger of spilling.  They can be shipped without special
handling.  Downside: they cost much more and are more sensitive to proper
charging and discharging.

On Fri, Aug 14, 2009 at 5:31 PM, Carl Karsten <carl at personnelware.com>wrote:

> On Fri, Aug 14, 2009 at 6:31 PM, Jason Dagit<dagitj at gmail.com> wrote:
> > On Fri, Aug 14, 2009 at 2:40 PM, Michael Robinson
> > <plug_1 at robinson-west.com>wrote:
> >
> >>
> >> So I am thinking car batteries as they pack a lot of punch, are
> >> available practically everywhere, and they are recoverable without
> >> special equipment.  However, open lead acid batteries are not
> >> appropriate for use on a desktop.  I've also heard if these
> >> batteries don't vibrate that they will sulfate up much faster.
> >
> >
> > I could be mistaken, but I was thinking that car batteries (slowly)
> produce
> > toxic fumes as they work.  Something that is not a problem under the hood
> of
> > your car, but worth considering in homes.  You might want to research
> this.
>
> No clue about toxic fumes, no clue if this is best, but I have 2 that
> I use for running my laptop when I am "camping" (for various values of
> camping.)
>
>
> http://www.batteriesplus.com/p-35924-wkdc12-33j-werker-deep-cycle-12v-33ah-agm-battery-with-j-terminal.aspx
>
> $80.  "Designed for deep discharge in wheelchair,"  So I would hope
> the fumes thing isn't an issue.
>
> 2 features I like:
> 1 - 24lbs - I can carry that for a mile without my arm falling off.
> 2 - nice built in handle.  however, the handle in the picture is
> different than my handle, which looks more like the one here:
>
> http://www.batteriesplus.com/p-32658-werker-12v-31ah-gel-battery-with-j-terminal.aspx
>
> --
> Carl K
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