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<blockquote data-quote="twistedchild420" data-source="post: 7307765" data-attributes="member: 612109">AH, CA, and CCA mean nothing in car audio applications. AH ratings are low amperage pulls for extended periods of time. CA and CCA were tests designed back in the early 1900&#039;s are very outdated. All battery companies still use the CA and CCA ratings though, because they are an industry standard rating. The reason you see companies come up with other testing results is because of how outdated the CA and CCA tests are.For car audio applications you need instantaneous power with the battery having the ability to recover quickly. When the bass hits the amperage pull goes up and as soon as the bass stops the amperage draw drops, so when the amperage pull drops the battery should then be able to recovery quickly.As for a rating to look at.............. there is no one rating you can look at really. We wish there was, but there just isn&#039;t. You can look at what the battery is designed for though. If it is a commercial battery that is designed for a low amperage pull for continuous periods, then it is not going to work well for car audio really.</blockquote>

[QUOTE="twistedchild420, post: 7307765, member: 612109"] AH, CA, and CCA mean nothing in car audio applications. AH ratings are low amperage pulls for extended periods of time. CA and CCA were tests designed back in the early 1900's are very outdated. All battery companies still use the CA and CCA ratings though, because they are an industry standard rating. The reason you see companies come up with other testing results is because of how outdated the CA and CCA tests are. For car audio applications you need instantaneous power with the battery having the ability to recover quickly. When the bass hits the amperage pull goes up and as soon as the bass stops the amperage draw drops, so when the amperage pull drops the battery should then be able to recovery quickly. As for a rating to look at.............. there is no one rating you can look at really. We wish there was, but there just isn't. You can look at what the battery is designed for though. If it is a commercial battery that is designed for a low amperage pull for continuous periods, then it is not going to work well for car audio really. [/QUOTE]

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