2 Batteries ?

  • tee
    kasson , mn
    Posts: 14
    May 7, 2009 at 5:18 pm #1262809

    How do I make a 12v system work on 2 batteries ?

    jhalfen
    Posts: 4179
    May 7, 2009 at 5:20 pm #774818

    Connect the batteries in parallel.

    + to +

    – to –

    jon_jordan
    St. Paul, Mn
    Posts: 10908
    May 7, 2009 at 5:24 pm #774821

    And run your cables off the + and – on one battery. (Rather than the + on one battery and the – on the other.)

    -J.

    Wade Boardman
    Grand Rapids, MN
    Posts: 4453
    May 7, 2009 at 5:54 pm #774832

    This may be a dumb question. Do you really receive 2X the run time when you wire 2 batteries in parallel? I realize that you don’t get 2X the power output.

    When wired in circuit, you can clearly see the benefits, however are there similar benefits wiring in parallel?

    jon_jordan
    St. Paul, Mn
    Posts: 10908
    May 7, 2009 at 5:58 pm #774835

    You get the same output and twice the run time. Assuming both batteries are the same.

    -J.

    Randy Wieland
    Lebanon. WI
    Posts: 13467
    May 7, 2009 at 6:16 pm #774840

    A real benifit comes from trolling motors that use optimizer technology. As the sense the amps dropping on a battery, they automaticly cut the % of draw. So if you wanted to run at 75% power, and the trolling motor sense the battery level dropping, it might cut down to 40% power. By doubling you reserve capacity, you extend not only the run time, but also the power of your run time

    tee
    kasson , mn
    Posts: 14
    May 7, 2009 at 6:30 pm #774849

    Thanks a lot guys !!!!!!!

    machine
    Posts: 98
    May 7, 2009 at 9:09 pm #774900

    agreed, but it only works if you trolling motor is capable of that. otherwise, it doesn’t benefit, correct?

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