2 Batts, 2 ESCs, 1 reciever

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  • ScarabChris
    Senior Member
    • Oct 2010
    • 752

    #1

    2 Batts, 2 ESCs, 1 reciever

    Setting up a twin electric boat. I have two batteries, two ESCs and one receiver. I planned to use a servo splitter so I can control both motors simultaneously.

    I am powering the receiver with the ESCs. My concern is this. Will combining both ESCs with the splitter double the input voltage to the receiver and fry it?
  • sailr
    Fast Electric Addict!
    • Nov 2007
    • 6927

    #2
    In a word, YES! I would highly recommend disabling the BEC's in both ESC's and adding an onboard battery for the receiver/servo. As an alternative, on twin motor setups in airplanes, the BEC of ONE of the esc's is disabled when using a Y connector to the throttle channel of the receiver. Only ONE BEC is needed to run the receiver and servo.
    Mini Cat Racing USA
    www.minicatracingusa.com

    Comment

    • JMSCARD
      Fast Electric Addict!
      • Mar 2010
      • 3444

      #3
      YES I agree 100% with what sailr said... just disable both bec's and run a rxr pack.... you will have alot less heartache......

      Comment

      • eboat
        Senior Member
        • Aug 2007
        • 693

        #4
        Would not just pulling the red wire out of the plug that goes to one reciever work ?
        It would be alot easier in his light duty scale boat he is building

        Comment

        • FighterCat57
          "The" Fighter Cat
          • Apr 2010
          • 3480

          #5
          Originally posted by eboat
          Would not just pulling the red wire out of the plug that goes to one reciever work ?
          It would be alot easier in his light duty scale boat he is building
          Red wire from ESC A cannot touch red wire from ESC B. So red wire needs to be disconnected on either A or B on the ESC or Y splitter before the join.
          FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

          Comment

          • ScarabChris
            Senior Member
            • Oct 2010
            • 752

            #6
            Ok that was my question. So just cut the red wire going to the receiver from one of the ESCs?

            These are the ESCs I'm using. They have a built in switch also.
            http://www.offshoreelectrics.com/pro...rod=dh-prb2314

            Comment

            • eboat
              Senior Member
              • Aug 2007
              • 693

              #7
              Originally posted by FighterCat57
              Red wire from ESC A cannot touch red wire from ESC B. So red wire needs to be disconnected on either A or B on the ESC or Y splitter before the join.

              That is what I said take the red wire out that goes to one ESC

              Comment

              • ScarabChris
                Senior Member
                • Oct 2010
                • 752

                #8
                These ESCs have brown-red-orange wires. So take out the red (center) of one of the ESCs?

                Comment

                • FighterCat57
                  "The" Fighter Cat
                  • Apr 2010
                  • 3480

                  #9
                  Originally posted by ScarabChris
                  These ESCs have brown-red-orange wires. So take out the red (center) of one of the ESCs?
                  Yep. Center Red of one ESC.
                  FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

                  Comment

                  • ScarabChris
                    Senior Member
                    • Oct 2010
                    • 752

                    #10
                    Perfect, thanks guys! I didn't want to have to carry another battery in the boat.

                    Making progress on the build, check for updates in the boat building thread within the next day or so.

                    Comment

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