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Ja Marcus
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6,975 Posts
CCA and CA don't really play a roll in car audio so much. You want to look at reserve capacity and ESR or internal resistance for starters.
 

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1,330 Posts
Internal resistance, discharge voltage
 

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mega fatty
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6,008 Posts
^yes
a low internal resistance, and you want alot of ah
that is the rating for how many amps you can run for 1 hour before you get below iirc 10.4v (either way its around that and you dont want it to be that low anyhow)
 
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