Re: [IDEA] Poor man's UPS

[Jeff V. Merkey]

Christian Trefzer wrote:

> On Mon, May 22, 2006 at 04:40:58PM +0100, Alan Cox wrote:
>  
>
> > Lead acid batteries should be kept well charged to avoid sulphation and
> > always full charged when recharging, preferably using a charger that
> > will do proper three step charging. "Cycling" a lead acid battery is a
> > great way to destroy it.
> >
> >    
>
> So it is better to use only one battery (or an array thereof) which is
> sort of charged and discharged at the same time, or is this idea just as
> screwed..? I don't have a degree in electronics, mind you : )
>
> Might be easier to build something that keeps a battery well maintained
> and switches in case of power outage. With large enough condensors to
> bridge the gap, which would also iron out any peaks and stuff, this
> should work pretty well.
>
> Kind regards,
> Chris
>  
You know, these old lead acid batteries are a fire hazard, not to 
mention they produce free hydrogen gas when discharging to charging.

Guys, stick to nicads or a fuel cell to avoid burning down your house or 
the neighborhood.  Ever see a lead acid battery explode?  I have.  It 
throws sulphuric acid all over the place.

Jeff
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