(CCA) Car battery question?

I received a car from a family member as a gift, but was told that it would need a new battery due to the CCA (Cold cranking amps) rating which I guess means that the car will not start when the temperature drops below a certain degree. So here's my question, does that mean once the temp warms back up that the... show more I received a car from a family member as a gift, but was told that it would need a new battery due to the CCA (Cold cranking amps) rating which I guess means that the car will not start when the temperature drops below a certain degree. So here's my question, does that mean once the temp warms back up that the battery will work again and the car will start? I'm planning on getting a new battery anyway, but I was curious.
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