> How are you planning to define your discharge points,  by voltage or
> hydrometer reading?  What will you consider "discharged"?  I've seen
> specs for that going to,  say,  10.5 volts for a 12 volt battery,  though
> I wouldn't want to make it a habit to run them down that far.  Voltage
> can also be misleading if you're dealing with surface charge at all.
 
That's all kinda interesting.
 
9.6 volts for 15 seconds under load seems to be the industry standard
for determining a defective battery. I've taken so many back to various
dealers which were under warranty and watched them test their batteries
to determine whether or not to guarantee them that I have learned that
from them. In other words, if a battery falls under 9.6 volts during
the 15 second discharge period they will all replace it.
 
I have therefore adopted the standard of 10.6 volts as being the point
at which I will no longer take a "reconditioned" battery out to one
of my customers. If it won't stand up to that then I simply junk it.
My number of rejects by customers has since fallen to just about zip
whereas before I instituted that standard I was having so many rejects
that I was starting to lose customers. Thanks to that standard, I am
now starting to turn my business around and looking for better days
ahead. 
 
Bill 
--- DB 1.58/004358
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