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Thread: What amperage do I need on my battery isolator??? HELP!

  1. #1
    Newbie
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    Feb 2004
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    1

    What amperage do I need on my battery isolator??? HELP!

    Okay, so I have done a TON of research, and pretty much narrowed my isolator choices to the following:

    http://deeptronics.com/catalog/produ...oducts_id/1111

    or

    http://hellroaring.com/bic75300.htm

    The difference is that the NewMar one has a continuous voltage of 100 AMPS
    The Hellroaring one has a continuous voltage of 150-180 AMPS

    My audio system has a 851watt amp. I also have 2 6x9's, a surround sound receiver, and my tv / dvd player in my dash. My alternator outputs about 130 AMPS. Im not an electrical engineer and know nothing about amps, etc, which one of these isolators is the best for me??

  2. #2
    FLAC shakes's Avatar
    Join Date
    Oct 2003
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    Atlanta GA
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    1,064
    current is drawn by the devices pulling the power ... it's not 'pushed' by the battery.

    i believe that 150-180 amps is a range of maximum RMS power based on polarity.

    looks like the hellroaring should be fine and looks to be the better option.

    you may want to look into upgrading your alternator later... your system might be pushing the 130amp ceiling.
    My JeepPC Install

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