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  • Results 1 to 9 of 9
    1. Back To Top    #1
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      on board charger

      Sorry if this has been discussed. I bought a new to me boat last fall. It currently has a two bank on board charger. I want a 3 bank. What do think is better? Take out 2 bank and try to sell and put in a 3 bank or just add a single bank and add a plug to charge all 3 at same time? Easier vs $$??

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    2. Back To Top    #2
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      Switch to 3 bank if all 3 batteries will be of the same type. Minn-kota has $50 rebate available for purchases made through end of May.

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    3. Back To Top    #3
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      What do you mean "same type?" Currently I have two deep cycles up front under rod locker. Charger is up front too in a compartment. I'd like to be able to charge my cranking battery also.

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    4. Back To Top    #4
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      It’s fine to charge all three with a three bank. Each bank has a separate monitor for each battery. It doesn’t care what battery it is as long as it’s a 12V

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    5. Back To Top    #5
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      bigv: Any thought on adding a "house" battery for your current (or future) electronics?

      I have two, 2 bank chargers for four batteries and love it. The house battery really cleaned up a few irksome interference issues on my graphs and I never worry about running down my starting battery.

      (Fairly common problem with interference when trolling motor/graph/engine share a battery or charger.)

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      Last edited by Grumps; 05-13-2022 at 10:55 AM.

    6. Back To Top    #6
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      grumps...What do you mean "house battery?"

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    7. Back To Top    #7
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      I run one battery just for my electronics. Some people call this battery a "house" battery.

      I run humminbirds and they can be a bit picky about shutting down with low battery voltages. Guys with mercs often have problems with their units shutting down when they start their main motors (if electronics share the starting battery).

      I just use a cheap Costco deep cycle with good wire to my graphs and always have great readings with no shutdowns.

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    8. Back To Top    #8
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      Quote Originally Posted by Grumps View Post
      I run one battery just for my electronics. Some people call this battery a "house" battery.

      I run humminbirds and they can be a bit picky about shutting down with low battery voltages. Guys with mercs often have problems with their units shutting down when they start their main motors (if electronics share the starting battery).

      I just use a cheap Costco deep cycle with good wire to my graphs and always have great readings with no shutdowns.
      Interesting. I'll think on that. I think I want to go 3 bank route but will toss that around. I need to put in a "kill switch" on my graph line too. It does trickle drain my battery when sitting.

      - - - Updated - - -

      how many amps is good? At least 5 for each so 15 or more?

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    9. Back To Top    #9
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      10 amp per bank is the minimum.

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