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Thread: Adding second battery

  1. #1
    Join Date
    Jun 2019
    Location
    kentucky
    Posts
    1
    My Cars
    328i

    Adding second battery

    i知 currently looking at a 2007 328i and i found out that the batteries have to be registered. i plan on adding a 3500 watt amp and would like to add a second battery, how does battery registering work if you have two batteries?

  2. #2
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    The issue may be that the car痴 charging system may not be able to keep 2 batteries charged. Yes, you値l have to register the new battery. But, guess what! That値l likely wipe out the original battery痴 registration.

    Btw, do you have enough money for hearing sides?

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