GS wrote:

--------------------
Phil Allison


** The ESR of a cell or battery is a good guide to its condition.

A fresh AA alkaline measures 0.1 ohms or lower while a tired one
measures 1 ohm or greater, a fresh 9V measures under 1 ohm. Along with a
voltage test you have enough info to match or discard used cells.

.... Phil

What's a good way to do that ?



** Do what ?

Test ESR or correlate it with open cct cell voltage?



ESR.


** Err - with an ESR meter, like this one:

http://bobparker.net.au/esr_meter/esrmeter.htm



...... Phil