Gerard Bok wrote:
On Fri, 15 Jan 2010 19:14:44 -0500, "Wild_Bill"
wrote:

I have a milliohm meter around here somewhere, but I don't know if it would
work for battery cells,

Unless you are very sure that your milliohm meter is capable of
testing battery cells, I would strongly advice you not to try it.

General rule: don't apply anything 'active' to a device that is
supposed to measure resistance.


While that is true for older analog meter movements (always measure
resistance with system power off) modern meters such as the Bob Parker
ESR meter can read the resistance of a 'hot' circuit up to the breakdown
voltage of the input capacitor (roughly 50V). As such a meter like the
Bob Parker ESR kit (Blue ESR now produced by Anatek) can easily be used
for testing the internal resistance of batteries - the question is if
that produces useful information!

John :-#)#

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