Digital Battery Hydrometer [RE-wrenches]

[Joel Davidson]

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See http://www.alber.com/ProdPageDMA.htm
This device has a pipette for manually testing multiple cells. What about 
leaving it in a reference cell? I can think of a couple of reasons why not, 
but maybe someone can figure out how to get a continuous SG reading.

----- Original Message ----- 
From: "Jay Peltz, Peltz Power"
To: <RE-wrenches at topica.com>
Sent: Thursday, February 14, 2008 1:33 PM
Subject: Re: Why I abuse batteries was: trojan battery cycle [RE-wrenches]



HI Travis,

Years ago ( this will date some folks) there was a company that had a
unit that replaced a cap in one cell on one battery ( made by
Photron) that sent its into to a unit called a Battery lite.

This device measured SG, and so yep its already been done, but sure
would be helpful now.

Problem is you need an integrated system, which for battery based
isn't done yet.

Think of all the grid tied systems that need some cycling.  This
needs to be automatically taken care of and will be an important
selling feature in future


jay

peltz power
On Feb 14, 2008, at 12:45 PM, Travis Creswell wrote:

>
> I assume we would all agree what Specific gravity is about the most 
> accurate
> to way to determine state of charge.
>
> So here is possibly dumb question that I've wondered about for years.
>
> Is there such a thing as digital specific gravity meter?  IE; a probe
> immersed in the electrolyte wired to a display.  There must not be  else 
> our
> lives would be so much easier.  Right?  Because the next logical  step is
> that it would talk the the charge controller and in theory we  wouldn't 
> have
> to bother with setting voltages and bulk charge times and so on.
>
> I can see a lot of technical reasons why such a devise doesn't  exist but 
> if
> we send a man to moon surely we could build such a thing....   Couldn’t it 
> be
> as easy as installing the float "thingy" that is in a standard  hydrometer
> with a sending unit?
>
> Travis Creswell
> Ozark Energy Services


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