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Need wireing diagram to set up 2 batteries and perko switch

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  • Need wireing diagram to set up 2 batteries and perko switch

    I'm not too good with diagrams anybody have a simple diagram how I should wire batteries? I have 1 battery now and going to upgrade to 2 batteries and a 3 terminal Perko switch
    thanks

    JimmyNoShow


  • #2
    Re: Need wireing diagram to set up 2 batteries and perko switch

    I don't have a diagram, but it's pretty easy;

    Positive cable from first battery goes to post #1 on the switch
    Positive cable from second battery goes to post #2 on the stitch
    Starter cable from engine goes to COM (common) post on battery switch

    NO negative cables connect to the switch, they are bolted to the engine.
    2001 Crestliner SuperHawk 1800, Mercruiser 140HP
    2007 Tracker 1436 jon boat, 7.5HP Force

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    • #3
      Re: Need wireing diagram to set up 2 batteries and perko switch

      So both grounds independant to engine? or neg to neg and 1 ground to block??
      tanks

      JimmyNoShow

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      • #4
        Re: Need wireing diagram to set up 2 batteries and perko switch

        yes connect the neg posts on the battery together with one cable, then another cable from either battery neg post to the block.
        Sometimes when people try to save a penny, they end up spending a dollar

        It is best to fully understand how to properly operate, inspect, troubleshoot and repair your equipment

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        • #5
          Re: Need wireing diagram to set up 2 batteries and perko switch

          Sounds simple enough to me. Hopefully get out Saturday

          JimmyNoShow

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          • #6
            Re: Need wireing diagram to set up 2 batteries and perko switch

            Anybody tell me how to use switch?

            JimmyNoShow

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            • #7
              Re: Need wireing diagram to set up 2 batteries and perko switch

              if you want batt one to supply power, switch on #1, if you want batt two to supply power, switch on #2. if you want both batts to supply power, switch on "all".

              if it were me, i would have switch on "all" at all times. this way the alt is charging both batts while the motor is running
              Sometimes when people try to save a penny, they end up spending a dollar

              It is best to fully understand how to properly operate, inspect, troubleshoot and repair your equipment

              Comment



              • #8
                Re: Need wireing diagram to set up 2 batteries and perko switch

                What I do with my boat is cruise on both, and when we get somewhere to anchor for a while, I switch to battery 1 to run the stereo and whatever else. When it comes time to go, flip to battery 2, fire it up, then switch it to both so both batteries charge on the run home. When on shore power, ours has a charger so the batteries stay topped off. If you go with two batteries, what I'd suggest is having one starting battery, and one deep cycle. Anchor on the deep cycle so you can run accessories for longer, then start on the starting battery when its time to go.
                1993 Rinker FiestaVee 300
                twin 5.7L/Bravo
                newly appointed with Bravo III lower units

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                • #9
                  Re: Need wireing diagram to set up 2 batteries and perko switch

                  Here is a link to a pretty good kit, if you haven't bought one already. http://bluesea.com/category/1/productline/overview/329
                  Also, there is detailed diagrams and instructions.

                  If you're only going to add the switch, try here for instructions, etc. http://bluesea.com/products/5511e

                  There is plenty more, similar to the Perko's offerings on the website with wiring diagrams.

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                  • #10
                    Re: Need wireing diagram to set up 2 batteries and perko switch

                    I always save one battery for starting and hook up all accessories to the second battery. When I take off in the morning after camping I'll switch to one, start and run a while on it to make sure it is full again then switch to number two that ran my accessories all night and charge it.

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                    • #11
                      Re: Need wireing diagram to set up 2 batteries and perko switch

                      I think I remember reading somewhere you can do damage in a certain position? No one mentioned anything about that here

                      JimmyNoShow

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