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post #4 of Old 09-23-2012
svzephyr44
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Re: CCA - Cold Cranking Amps question

Quote:
Originally Posted by The Sailing Podcast View Post
I hope it is not a problem with the alternator.
David
Before you do anything with the alternator check the drive belt tension. A loose drive belt can make it look like the alternator is failing. This is true much more often in a boat since in a car you are usually just topping off the battery where in a boat you can be recharging from a deeper level. This requires more power into the alternator (the engine drive belt) so it is more likely to slip.

I would just take the battery to a West Marine or Auto Zone (since you were taking it out anyway.) They have a machine that will tell you if the battery is any good for free.

CAPT Roger J. Jones USN (ret.)
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