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Thread: Alternator Longevity

  1. #11
    Low Bitrate jake789's Avatar
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    Quote Originally Posted by mroverkill View Post
    The Optima batteries while cool, and can be mounted in any position etc. have one major downfall not many people understand. They typically have a lower A/Hr rating per a given size then a conventional lead acid type battery.
    Optimas Ah is pretty high and usually only slightly smaller than other comparable batts. Thats because the batt consists of 6 cylinders instead of a rectangle so its actually smaller in size which is why its Ah is slightly smaller.

    And they are much higher than most conventional batts. I think you mean to compare them to other sealed AGM batts.

  2. #12
    MySQL Error soundman98's Avatar
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    Quote Originally Posted by jake789 View Post
    Optimas Ah is pretty high and usually only slightly smaller than other comparable batts. Thats because the batt consists of 6 cylinders instead of a rectangle so its actually smaller in size which is why its Ah is slightly smaller.

    And they are much higher than most conventional batts. I think you mean to compare them to other sealed AGM batts.
    i was told once that the cylinders and gel medium are what makes the Ah lower because it can't make the chemical reaction fast enough--same overall info though (optimas are worse than standard batteries for high, constant, draw), but i might have been misinformed..

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