Car Battery CCA is wrong?

I have an 01 Ford Explorer Sport. It requires a 650 CCA battery, But the one in it is 700... My car has been clicking while trying to start recently, could this be the problem after all? BTW: The car was given to me as a graduation gift by my Grandma, she went to Walmart to buy the battery and they told her to get... show more I have an 01 Ford Explorer Sport.
It requires a 650 CCA battery, But the one in it is 700...
My car has been clicking while trying to start recently, could this be the problem after all?

BTW: The car was given to me as a graduation gift by my Grandma, she went to Walmart to buy the battery and they told her to get this one. It was the most expensive one there. Do you think they would exchange it?
Update: I odnt think the alternator is to blame, but could this be why the solenoids are clicking, either this or starter?
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