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Dual battery system

Discussion in 'Boat Electronics' started by Louis News, Aug 4, 2004.

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  1. Louis News

    Louis News Guest


    I hope this is the right newsgroup. Can anyone help me with schematics or
    plans for building a dual battery system for a 12v refrigerator running from
    a car and the battery system?

    You can mail me at

  2. Google is your friend, don't expect others to do your research on such a
    basic and common subject !!
  3. Yes. They should both end up charged.
    Ideally, batteries that are regularly used in parallel should be of
    the same make, type, vintage, and usage history - even then you should
    occasionally test one battery at a time, as the good battery (or
    batteries) in a bank can hide a faulty one.

    Peter Bennett, VE7CEI
    peterbb4 (at)
    new newsgroup users info :
    GPS and NMEA info:
    Vancouver Power Squadron:
  4. Jeff Morris

    Jeff Morris Guest

    This is true if they are discharged in parallel, but its not a problem when
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