[Test-Equipment] "Conductance" battery checker

[J. Forster]

Do you mean they measure:

The amount of charge left in a battery (A-H)?
or
The internal resistance of a battery?

-John



> Looking for information on designing and building a battery
> "conductance" tester.  In an extended web search, I see a couple
> companies that sell small 6 and 12 volt conductance testers.
>
> They apparently inject a small AC voltage into a battery on or off line,
> in a non-intrusive way.  Calibration data is developed by profiles from
> testing good batteries.  The resultant voltage and current phase
> differentials are processed and utilized to give an indication of
> remaining battery capacity.
>
> The commercial testers available are not very expensive, but those found
> on line give little detail about how they operate and they appear not to
> quite meet my needs, as I would like to try this technique by composite
> testing of a series of SLA batteries.
>
> I am prone to try building one if helpful info were available.
>
> Does anyone have any experience with such, or have design info for
> building a battery conductance tester?
>
> Thank you for your attention.
> 73,
> Ray, W4BYG
> Cleveland, TN
>
> ______________________________________________________________
> Test-Equipment mailing list
> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Test-Equipment at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>