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optima battery
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  1. DIY: Do It Yourself
    HI, I replaced my OEM battery with an Optima. It is the best battery out there in the world at the moment. I measured the dimensions on OEM and the fixture in the trucnk of my 2001 330 CI DINAN and then called Optima tech support to find a battery that would fit it. Nothing will pop up for BMW...
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