Accord 1999 - battery "tested" 209 CCA, "Replace!"? Why?

On Mar 8, 5:19 pm, Gordon McGrew > wrote:
> On Thu, 08 Mar 2007 17:41:56 GMT, "Andy & Carol"
>
> > wrote:
> >The battery should have been replaced 4 yrs ago.
> >It a wonder you haven't cooked that expensive
> >alternator for making it work so hard. Batteries are
> >cheap..but not being stranded some rainy ,cold night,
> >getting help, the battery is probably sulfated. But some folks
> >are lucky...
>
> I'm not convinced that an aging battery puts unusual stress on the
> alternator.

I tend to agree. Only in the case of a huge current draw by some
device like a monster stereo, radio transmitter, etc might this be an
issue.
And then only because it will quickly tap out a battery, and the
alternator works hard trying to keep it charged. In most normal
cases with a minimal current draw, it won't be an issue.
I see low voltage as being harder on the starter motor, than
the alternator. And even a half shot battery will not keep a low
voltage long, once started. It will quickly charge to normal
voltage. In other words, it still acts as normal, except as far
as capacity.
MK

On Fri, 9 Mar 2007 00:53:22 +0000 (UTC), Tegger >
wrote:

>Gordon McGrew > wrote in
:
>
>> On Thu, 08 Mar 2007 17:41:56 GMT, "Andy & Carol"
>> > wrote:
>>
>>>The battery should have been replaced 4 yrs ago.
>>>It a wonder you haven't cooked that expensive
>>>alternator for making it work so hard. Batteries are
>>>cheap..but not being stranded some rainy ,cold night,
>>>getting help, the battery is probably sulfated. But some folks
>>>are lucky...
>>
>> I'm not convinced that an aging battery puts unusual stress on the
>> alternator. I would be interested in hearing from an electrical
>> engineer with specific knowledge on this.
>
>Here ya go.
>http://www.uuhome.de/william.darden/carfaq5.htm

I don't see anything here that addresses the question of stress on the
alternator due to an aging battery.