Re: (ET) 24 volt battery gauge

["Travis Creswell" <ozsolar ipa net>]

You could something like the E-Meter or a Tri-metric 2020 if you really
wanted great accuracy and had some were willing to pay over $200 for an off
the shelf solution. The Tri-metric is easier to use, and I think it's less
money but it's not waterproof.  Both of them are going to give you all the
data you could ever want and more.  They both are pretty accurate at
counting amp hours in/out and will give you a "% battery full" depending on
how many amp hours are left in the battery.

or 

There are at least several battery meters available.  Check out this one
made by B.Z. Products. http://www.energyoutfitters.com/bzprod.htm.  I think
this is probably exactly what you are looking for.

Travis

Joplin, MO

E15


----------
>From: Paul and Sue Abendroth <pabendro gemair com>
>To: elec-trak cosmos phy tufts edu
>Subject: Re: (ET) 24 volt battery gauge
>Date: Sat, Jun 7, 2003, 9:22 AM
>

>At 09:15 AM 6/6/03 , Chapin, Tim wrote:
>>I should be getting my controller back from repair next week for the 24 
>>volt
>>pontoon boat project.  I would like to find a battery fuel gauge for it.
>>Something simple like the elec trak gauge that way when others are using 
>>it
>>they can easily read full, half full, empty, so on...  Where would I look
>>for something like that?
>
>
>The ET meter is an expanded scale voltmeter (the zero is suppressed so 
>some 
>minimum voltage is required to get to the "0". you can simulate this by 
>connecting a zener diode in series with a voltmeter (You can use a 
>milliampere meter and resistor) and making a new scale. Someone who's 
>tried 
>it may be able to suggest the values for the diode and resistor for 24 
>volts.
>
>
>Paul and Sue Abendroth
>pabendro gemair com
>our permanent address is pabendroth dma org
>
>