Why I abuse batteries was: trojan battery cycle [RE-wrenches]

[Bob Ellison]

2008/2/16 Travis Creswell <tcreswell at ozarkenergyservices.com>:
>
> The bubbles don't change the SG of the sample drawn into the hydrometer as
> long as you tap the hydrometer until they are dislodged from the float at
> which time they rise to air space at the top.  Right?

That has been my experience, just tap it and let them rise to the top.
A few bubbles can make a difference but you don't need to go overboard with it.
the big batteries I mantain are 40 cell packs and if they are fresh
off a charge you will pull bubbles off the plates if you are hurrying
to much.




Or are we talking
> about microscopic bubbles that I can't see (like air entrained air in a
> boiler when you initially fill it?)?
>
> I always thought the bubbles in my hydrometer came from the action of
> drawing the sample to quickly or not having the hydrometer fully immersed in
> the electrolyte.  Because when I draw the sample slowly I get a nearly
> bubble free sample.
>
It's big bubbles from drawing too fast v/s little bubbles off the plates
Ever tap a battery with your toe and watch and listen to the bubbled
getting free?

Later,
Bob

> Travis Creswell
> Ozark Energy Services
>
> -----Original Message-----
> From: Bob Ellison [mailto:reellison at gmail.com]
> Sent: Saturday, February 16, 2008 8:01 AM
> To: RE-wrenches at topica.com
> Subject: Re: Why I abuse batteries was: trojan battery cycle [RE-wrenches]
>
>
> It is really simple, the bubbles get lifted into the hydrometer and
> make the fload read higher than it would otherwise.
>
>  bob
>
>
> On Feb 15, 2008 11:46 AM, Allan Sindelar <allan at positiveenergysolar.com>
> wrote:
> >
> > Drake,
> > I have long understood that the bubbles created by the gassing action
> during
> > charging stirs up and destratifies the electrolyte. Is that what you're
> > referring to?
> > Allan at PosE
> >
> >
> > ----- Original Message -----
> > From: "Drake Chamberlin" <Drake.Chamberlin at redwoodalliance.org>
> > >
> > > It seems that the specific gravity is affected by bubbles in the
> > > electrolyte during charge.  I've heard this from others, and it
> > > appears to be true from my observation.   Does anyone have any data
> > > on this effect?
> > >
> >
> >
> >
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