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  • Ub Hauled
    Fast Electric Addict!
    • Aug 2007
    • 3031

    #1

    Esc q for you knowledgeable guy

    I was wondering if disabling the internal BEC and running an Rx pack would allow one to run a 1s pack (3.7v) on a Hydra 120...
    :::::::::::::::. It's NEVER fast enough! .:::::::::::::::
  • Flying Scotsman
    Fast Electric Adict!
    • Jun 2007
    • 5190

    #2
    Jan, my 1.5 cents always disable the BEC circuitry and run a stand alone power source.

    Douggie

    Comment

    • Simon.O.
      Fast Electric Addict!
      • Oct 2007
      • 1521

      #3
      Originally posted by Ub Hauled
      I was wondering if disabling the internal BEC and running an Rx pack would allow one to run a 1s pack (3.7v) on a Hydra 120...
      I am not familiar with the Hydras
      IF the esc is suitable for power down to 3.7 or 1S then you are deffo good to go as long as you run an Rx pack.
      Some speedies will not run on a single Li cell but if the hydra can then you are good.

      As an aside, wtf are you running with a single cell ?? a personal cooling fan ??
      See it....find the photos.....sketch it it....build it........with wood

      Comment

      • Ub Hauled
        Fast Electric Addict!
        • Aug 2007
        • 3031

        #4
        LOL,
        I have something that will run on 1s...
        I guess I need to rephrase a bit...

        Is the reason the Hydra is not rated for 1s it's internal BEC or is it something else?

        The reason I thought about this is, I was sniffing around and found something they called a Booster module, it ups the voltage to the Rx so it can be fed it's required 4.8-6v to run itself and the servo(s)... so I thought, wait a sec, that's kinda what the external Rx pack does!
        I would ask the folks over at CC but it takes them too long to answer me... =)
        :::::::::::::::. It's NEVER fast enough! .:::::::::::::::

        Comment

        • sailr
          Fast Electric Addict!
          • Nov 2007
          • 6927

          #5
          You could also run an external BEC to the receiver, cutting the red wire, thus disabling the onboard BEC in the controller.
          Mini Cat Racing USA
          www.minicatracingusa.com

          Comment

          • Rumdog
            Fast Electric Addict!
            • Mar 2009
            • 6453

            #6
            Just use this guy: http://www.castlecreations.com/produ...o-onecell.html

            Comment

            • sailr
              Fast Electric Addict!
              • Nov 2007
              • 6927

              #7
              What's the AMP rating on that thing? Am I truly going blind? I can't find it anywhere on that page.

              Originally posted by Rumdog
              Mini Cat Racing USA
              www.minicatracingusa.com

              Comment

              • Ub Hauled
                Fast Electric Addict!
                • Aug 2007
                • 3031

                #8
                I cant either, but I am downloading the PDF, maybe there they'll mention it
                :::::::::::::::. It's NEVER fast enough! .:::::::::::::::

                Comment

                • Ub Hauled
                  Fast Electric Addict!
                  • Aug 2007
                  • 3031

                  #9
                  Hmmm.. not sure its rated for a lot.. they ask you to make sure to have "high flow connectors, 40-100amps"... I guess that's a lot for cars, lol
                  :::::::::::::::. It's NEVER fast enough! .:::::::::::::::

                  Comment

                  • m4a1usr
                    Fast Electric Addict
                    • Nov 2009
                    • 2038

                    #10
                    Originally posted by Ub Hauled
                    I was wondering if disabling the internal BEC and running an Rx pack would allow one to run a 1s pack (3.7v) on a Hydra 120...
                    Nope. No can do Jan. The rx pack voltage does not power up the electronics that effect how the esc works. You need main battery power to do this. 1S in not enough volts to power the FET's to drive them. Andy might chime in since he is the expert. But I have already asked the very same question to Patrick at CC and the answer is no.

                    John
                    Change is the one Constant

                    Comment

                    • 785boats
                      Wet Track Racing
                      • Nov 2008
                      • 3169

                      #11
                      There are many 1s ESCs on the market. The BEcs in them (when supplied) step the voltage up for the Rx.
                      Anything from this,


                      to this.


                      I know Kinetic Racing sell some too.
                      All the best
                      Paul.
                      See the danger. THEN DO IT ANYWAY!!!
                      http://forums.offshoreelectrics.com/...hp?albumid=319
                      http://forums.offshoreelectrics.com/...hp?albumid=320

                      Comment

                      • Ub Hauled
                        Fast Electric Addict!
                        • Aug 2007
                        • 3031

                        #12
                        That sux.... I have escs already and would very much like o use one I already own...
                        does anyone one know if THIS would work with the Hydra 120 or any Hydra LV for that matter?
                        :::::::::::::::. It's NEVER fast enough! .:::::::::::::::

                        Comment

                        • RaceMechaniX
                          Fast Electric Addict!
                          • Sep 2007
                          • 2821

                          #13
                          Jan,

                          What are you doing fooling around with 1S! Why don't you just try it? unplug the red wire, hook up the controller and see what happens............

                          TG
                          Tyler Garrard
                          NAMBA 639/IMPBA 20525
                          T-Hydro @ 142.94mph former WR

                          Comment

                          • Ub Hauled
                            Fast Electric Addict!
                            • Aug 2007
                            • 3031

                            #14
                            LMAO, Tyler.. you got me there... that's what I'll do... it didn't even occur to me, LOL


                            will report om efforts...
                            :::::::::::::::. It's NEVER fast enough! .:::::::::::::::

                            Comment

                            • RaceMechaniX
                              Fast Electric Addict!
                              • Sep 2007
                              • 2821

                              #15
                              I have a feeling it will not work, but maybe worth a try. you will proably need to disable all LVC settings.

                              TG
                              Tyler Garrard
                              NAMBA 639/IMPBA 20525
                              T-Hydro @ 142.94mph former WR

                              Comment

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